{"id":4286,"date":"2020-04-24T16:52:57","date_gmt":"2020-04-24T08:52:57","guid":{"rendered":"https:\/\/damogame.cn\/wordpress\/?p=4286"},"modified":"2020-04-24T16:52:57","modified_gmt":"2020-04-24T08:52:57","slug":"%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3%e8%ae%a1%e7%ae%97%e6%9c%ba%e7%b3%bb%e7%bb%9f","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/4286","title":{"rendered":"\u6df1\u5165\u7406\u89e3\u8ba1\u7b97\u673a\u7cfb\u7edf"},"content":{"rendered":"<p><a href=\"https:\/\/www.jianshu.com\/p\/20a57b541b24\">\u539f\u6587\u5730\u5740<\/a><\/p>\n<p>&nbsp;<\/p>\n<div class=\"rEsl9f\">\n<div class=\"_2mYfmT\"><button class=\"_3kba3h _1OyPqC _3Mi9q9 _34692-\" type=\"button\" data-locale=\"zh-CN\"><\/button><\/p>\n<div>\n<div class=\"s-dsoj\"><time datetime=\"2017-12-25T05:43:43.000Z\">2017.12.25 13:43:43<\/time>\u5b57\u6570 20,141\u9605\u8bfb 1,262<\/div>\n<\/div>\n<\/div>\n<\/div>\n<article class=\"_2rhmJa\">\n<h2>\u8ba1\u7b97\u673a\u7cfb\u7edf\u6f2b\u6e38<\/h2>\n<ol>\n<li>\u4ee3\u7801\u4ece\u6587\u672c\u5230\u53ef\u6267\u884c\u6587\u4ef6\u7684\u8fc7\u7a0b\uff08c\u8bed\u8a00\u793a\u4f8b\uff09\uff1a\n<ul>\n<li>\u9884\u5904\u7406\u9636\u6bb5\uff0c\u5904\u7406 #inlcude &lt;stadio.h&gt;\uff0c #define MAX 100<\/li>\n<li>\u7f16\u8bd1\u9636\u6bb5\uff1a\u5c06\u6587\u672c\u7f16\u8bd1\u6210\u6c47\u7f16\u7a0b\u5e8f\uff0chello.s<\/li>\n<li>\u6c47\u7f16\u9636\u6bb5\uff1a\u6c47\u7f16\u5668\u5c06\u4e0a\u4e00\u6b65\u7684\u7a0b\u5e8f\u7ffb\u8bd1\u6210\u673a\u5668\u6307\u4ee4\u3002hello.o<\/li>\n<li>\u94fe\u63a5\u9636\u6bb5\u5c31\uff1ahello \u4e2d\u8c03\u7528\u7684printf\u51fd\u6570\uff0c\u800c\u51fd\u6570\u5b58\u5728\u4e00\u4e2aprintf.o \u5355\u72ec\u7684\u7f16\u8bd1\u5b8c\u6210\u6587\u4ef6\uff0c\u9700\u8981\u4ee5\u67d0\u79cd\u65b9\u5f0f\u5408\u5e76\u5230hello.o \u4e2d\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ol start=\"2\">\n<li>\u7cfb\u7edf\u7684\u786c\u4ef6\u7ec4\u6210\n<ul>\n<li>\u603b\u7ebf<\/li>\n<li>I\/O\u8bbe\u5907<\/li>\n<li>\u4e3b\u5b58<\/li>\n<li>\u5904\u7406\u5668\uff0c \u6307\u4ee4\u96c6\u5408\uff1a \u52a0\u8f7d(\u590d\u5236\u5185\u5bb9\u5230\u5bc4\u5b58\u5668\uff09\uff0c \u5b58\u50a8\uff08\u4ece\u5bc4\u5b58\u5668\u5230\u5b58\u50a8\uff09\uff0c\u64cd\u4f5c\uff08\u52a0\u51cf\u4e58\u9664\u7b49\u8ba1\u7b97\uff09\uff0c \u8df3\u8f6c\uff08\u8986\u76d6\u7a0b\u5e8f\u8ba1\u6570\u5668PC\u7684\u6570\u503c\uff0c\u6267\u884c\u4ee3\u7801\u8df3\u8f6c\uff09<\/li>\n<li>\u7f13\u5b58\uff0c \u9ad8\u901f\u7f13\u5b58<\/li>\n<\/ul>\n<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u5982\u4f55\u7ba1\u7406\u786c\u4ef6\n<ul>\n<li>\u4efb\u4f55\u7684\u786c\u4ef6\u901a\u8fc7\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u670d\u52a1\uff0c \u6240\u6709\u5e94\u7528\u7a0b\u5e8f\u90fd\u662f\u5efa\u7acb\u5728\u64cd\u4f5c\u7cfb\u7edf\u4e4b\u4e0a\u7684\u3002<\/li>\n<li>OS \u7684\u57fa\u672c\u529f\u80fd\uff1a 1. \u9632\u6b62\u786c\u4ef6\u88ab\u6ee5\u7528\uff0c 2. \u63d0\u4f9b\u4e00\u5957\u7b80\u5355\u4e00\u81f4\u7684\u673a\u5236\u6765\u63a7\u5236\u590d\u6742\u5ea6\u800c\u53c8\u5927\u76f8\u5f84\u5ead\u7684\u4f4e\u7ea7\u786c\u4ef6\u8bbe\u5907\u3002<\/li>\n<li>OS \u7684\u62bd\u8c61\uff1a \u6587\u4ef6 -&gt; IO\uff0c \u865a\u62df\u5b58\u50a8\u5668 -&gt; \u4e3b\u5b58+\u78c1\u76d8\uff0c \u8fdb\u7a0b -&gt; \u5904\u7406\u5668\uff0c\u4e3b\u5b58\uff0cIO\u8bbe\u5907\u7684\u62bd\u8c61<\/li>\n<\/ul>\n<\/li>\n<li>\u62bd\u8c61\n<ul>\n<li>\u8fdb\u7a0b\uff1a \u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u6700\u91cd\u8981\u5e76\u4e14\u6210\u529f\u7684\u6982\u5ff5\u3002<\/li>\n<\/ul>\n<blockquote><p>\u63d0\u4f9b\u4e00\u79cd\u5047\u8c61\uff0c \u597d\u50cf\u7cfb\u7edf\u4e0a\u53ea\u6709\u8fd9\u4e2a\u7a0b\u5e8f\u5728\u8fd0\u884c\uff0c\u770b\u4e0a\u53bb\u53ea\u6709\u8fd9\u4e2a\u7a0b\u5e8f\u5728\u4f7f\u7528\u5904\u7406\u5668\u3001\u4e3b\u5b58\u3001\u548cIO\u8bbe\u5907. \u8fd9\u662f\u901a\u8fc7\u5904\u7406\u5668\u5728\u8fdb\u7a0b\u95f4\u5207\u6362\u6765\u5b9e\u73b0\u7684\u3002 \u64cd\u4f5c\u7cfb\u7edf\u5b9e\u73b0\u8fd9\u79cd\u4ea4\u9519\u6267\u884c\u7684\u673a\u5236\u4e3a\u00a0<strong>\u4e0a\u4e0b\u6587\u5207\u6362<\/strong>, \u5b9e\u73b0\u8fdb\u7a0b\u8fd9\u4e2a\u62bd\u8c61\u6982\u5ff5\u9700\u8981\u4f4e\u7ea7\u786c\u4ef6\u548c\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u4e4b\u95f4\u7684\u7d27\u5bc6\u5408\u4f5c\u3002<\/p><\/blockquote>\n<ul>\n<li>\u7ebf\u7a0b\uff1a\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u8fd0\u884c\u5728\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\uff0c\u5e76\u5171\u4eab\u540c\u6837\u7684\u4ee3\u7801\u548c\u5168\u5c40\u6570\u636e\uff0c\u670d\u52a1\u5668\u5bf9\u4e8e\u5e76\u884c\u5904\u7406\u7684\u9700\u6c42\uff0c\u5bfc\u81f4\u7ebf\u7a0b\u7f16\u7a0b\u6210\u4e3a\u8d8a\u6765\u8d8a\u91cd\u8981\u7684\u7f16\u7a0b\u6a21\u578b\uff0c \u4e00\u822c\u6765\u8bf4\uff0c\u591a\u7ebf\u7a0b\u4e4b\u95f4\u66f4\u5bb9\u6613\u5171\u4eab\u6570\u636e\uff0c\u4e5f\u6bd4\u8fdb\u7a0b\u66f4\u8f7b\u91cf\u3002<\/li>\n<li>\u865a\u62df\u5b58\u50a8\u5668\uff1a \u4e3a\u8fdb\u7a0b\u63d0\u4f9b\u4e86\u4e00\u4e2a\u62bd\u8c61\u3001\u4e00\u81f4\u7684\u5b58\u50a8\u7a7a\u95f4\uff0c\u79f0\u4e3a\u865a\u62df\u5730\u5740\u7a7a\u95f4\u3002\u5305\u62ec\uff1a \u7a0b\u5e8f\u4ee3\u7801\u548c\u6570\u636e\uff0c\u5806\uff0c\u5171\u4eab\u5e93\uff0c\u6808\uff0c\u5185\u6838\u865a\u62df\u5b58\u50a8\u5668\u3002<\/li>\n<li>\u6587\u4ef6\uff1a \u5b57\u8282\u5e8f\u5217\u3002\u5305\u62ec\u78c1\u76d8\uff0c\u952e\u76d8\uff0c\u663e\u793a\u5668\uff0c\u7f51\u7edc\uff0c\u90fd\u53ef\u4ee5\u89c6\u4e3a\u6587\u4ef6\u3002<\/li>\n<li>\u5e76\u884c\u8ddf\u5e76\u53d1\u7684\u533a\u5206\uff1a \u5e76\u53d1:\u00a0<strong>\u597d\u50cf<\/strong>\u00a0\u540c\u65f6\u5177\u6709\u591a\u4e2a\u6d3b\u52a8\u5728\u7cfb\u7edf\u4e2d\u3002 \u5e76\u884c\uff1a\u771f\u6b63\u7684\u5e76\u884c\u3002<\/li>\n<li>\u62bd\u8c61\uff1a \u62bd\u8c61\u7684\u4f7f\u7528\u662f\u8ba1\u7b97\u673a\u79d1\u5b66\u4e2d\u6700\u4e3a\u91cd\u8981\u7684\u6982\u5ff5\u4e4b\u4e00\uff0c\u56e0\u4e3a\uff0c\u7a0b\u5e8f\u5458\u65e0\u9700\u4e86\u89e3\u5b83\u5185\u90e8\u7684\u5de5\u4f5c\u53d8\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u4ee3\u7801\u3002\u5728\u5904\u7406\u5668\u4e2d\uff0c\u6307\u4ee4\u96c6\u7ed3\u6784\u63d0\u4f9b\u4e86\u5bf9\u5b9e\u9645\u5904\u7406\u5668\u786c\u4ef6\u7684\u62bd\u8c61\u3002\u673a\u5668\u4ee3\u7801\u7a0b\u5e8f\u8868\u73b0\u7684\u597d\u50cf\u662f\u8fd0\u884c\u5728\u4e00\u4e2a\u4e00\u6b21\u6267\u884c\u4e00\u6761\u6307\u4ee4\u7684\u5904\u7406\u5668\u4e0a\u3002\u5e95\u5c42\u7684\u786c\u4ef6\u5e01\u62bd\u8c61\u63cf\u8ff0\u7684\u8981\u590d\u6742\u7cbe\u7ec6\u7684\u591a\uff0c\u5b83\u5e76\u884c\u7684\u6267\u884c\u591a\u6761\u6307\u4ee4\uff0c\u4f46\u53c8\u603b\u662f\u4e0e\u90a3\u4e2a\u7b80\u5355\u6709\u5e8f\u7684\u6a21\u578b\u4fdd\u6301\u4e00\u81f4\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"497\" data-height=\"197\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-2cc15e2b6a727494.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/497\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-2cc15e2b6a727494.png\" data-original-width=\"497\" data-original-height=\"197\" data-original-format=\"image\/png\" data-original-filesize=\"16900\" data-image-index=\"0\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">interface.png<\/div>\n<\/div>\n<p><strong>\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u4e00\u4e2a\u91cd\u5927\u7684\u4e3b\u9898\u5c31\u662f \u63d0\u4f9b\u4e0d\u540c\u5c42\u6b21\u7684\u62bd\u8c61\u8868\u793a\uff0c\u6765 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\u6240\u4ee5\u9b54\u9b3c\u9690\u85cf\u5728\u7ec6\u8282\u4e4b\u4e2d\u3002<\/strong>*<\/p>\n<ol>\n<li>\u673a\u5668\u4ee3\u7801\u7684\u4ea7\u751f\u8fc7\u7a0b<\/li>\n<\/ol>\n<blockquote><p>\u673a\u5668\u4ee3\u7801\uff0c \u7528\u5b57\u8282\u5e8f\u5217\u7f16\u7801\u4f4e\u7ea7\u7684\u64cd\u4f5c\uff0c\u5305\u62ec\u5904\u7406\u6570\u636e\u3001\u7ba1\u7406\u5b58\u50a8\u5668\u3001\u8bfb\u5199\u5b58\u50a8\u8bbe\u5907\u4e0a\u7684\u6570\u636e\u3001\u4ee5\u53ca\u5229\u7528\u7f51\u7edc\u901a\u4fe1\u3002 \u7f16\u8bd1\u5668\u673a\u57fa\u4e8e\u7f16\u7a0b\u8bed\u8a00\u7684\u539f\u5219\u3001\u76ee\u6807\u673a\u5668\u7684\u6307\u4ee4\u548c\u64cd\u4f5c\u7cfb\u7edf\u9075\u5faa\u7684\u539f\u5219\uff0c \u7ecf\u8fc7\u4e00\u7cfb\u5217\u7684\u9636\u6bb5\u4ea7\u751f\u673a\u5668\u4ee3\u7801\u3002GCC C\u8bed\u8a00\u7f16\u8bd1\u5668\u4ee5\u6c47\u7f16\u4ee3\u7801\u7684\u5f62\u5f0f\u4ea7\u751f\u8f93\u51fa\uff0c\u7136\u540e\u8c03\u7528 \u6c47\u7f16\u5668\u548c\u94fe\u63a5\u5668\u4ece\u800c\u6839\u636e\u6c47\u7f16\u4ee3\u7801\u751f\u6210\u53ef\u6267\u884c\u7684\u673a\u5668\u4ee3\u7801\u3002<\/p><\/blockquote>\n<ol start=\"3\">\n<li>\u62bd\u8c61\uff1a\n<ul>\n<li>\u6307\u4ee4\u96c6\u4f53\u7cfb\u7ed3\u6784\uff08ISA\uff09\uff1a \u5c4f\u853d\u4e86\u5904\u7406\u5668\u7684\u786c\u4ef6\u5b9e\u73b0\uff0c\u5c06\u6307\u4ee4\u7684\u6267\u884c\u63cf\u8ff0\u4e3a\uff0c\u7b80\u5355\u7684\u987a\u5e8f\u6267\u884c(\u5904\u7406\u5668\u7684\u786c\u4ef6\u8fdc\u8fdc\u6bd4\u63cf\u8ff0\u7684\u7cbe\u7ec6\u590d\u6742)<\/li>\n<li>\u5b58\u50a8\u62bd\u8c61\uff1a \u62bd\u8c61\u6210\u4e00\u4e2a\u5927\u7684\u5b57\u8282\u6570\u7ec4\uff0c\u5b58\u50a8\u5668\u7684\u5b9e\u73b0\u662f\uff0c\u5c06\u591a\u5c42\u786c\u4ef6\u5b58\u50a8\u5668\u548c\u64cd\u4f5c\u7cfb\u7edf\u8f6f\u4ef6\u7684\u7ed3\u5408<\/li>\n<\/ul>\n<\/li>\n<li>\u4e3b\u8981\u5185\u5bb9\uff1a\n<ul>\n<li>\u4e86\u89e3C\u8bed\u8a00\u4e2d\u7684\u63a7\u5236\u7ed3\u6784\uff0c \u6bd4\u5982if while switch \u8bed\u53e5\u7684\u5b9e\u73b0\u65b9\u6cd5\u3002<\/li>\n<li>\u8fc7\u7a0b\u7684\u5b9e\u73b0\uff0c \u5305\u62ec\u7a0b\u5e8f\u5982\u4f55\u7ef4\u62a4\u4e00\u4e2a\u8fd0\u884c\u6808\u6765\u652f\u6301\u8fc7\u7a0b\u95f4\u6570\u636e\u548c\u63a7\u5236\u7684\u4f20\u9012\u4ee5\u53ca\u5c40\u90e8\u53d8\u91cf\u7684\u5b58\u50a8<\/li>\n<li>\u6570\u7ec4\u3001\u7ed3\u6784\u3001\u8054\u5408\u8fd9\u6837\u7684\u6570\u636e\u7ed3\u6784\u7684\u5b9e\u73b0\u65b9\u6cd5<\/li>\n<\/ul>\n<\/li>\n<li>\u6307\u4ee4\u96c6\uff1a\n<ul>\n<li>\u6307\u4ee4\u64cd\u4f5c\u6570<\/li>\n<li>\u6e90\u6570\u636e\uff1a \u5e38\u6570\u3001\u5bc4\u5b58\u5668\u3001\u5b58\u50a8\u5668<\/li>\n<li>\u7c7b\u578b\uff1a \u7acb\u5373\u6570\uff08\u5e38\u6570\uff09\u3001\u5bc4\u5b58\u5668\u3001\u5b58\u50a8\u5668<\/li>\n<li>C \u8bed\u8a00\u7684\u6307\u9488\u5c31\u662f\u5730\u5740\uff0c\u95f4\u63a5\u5f15\u7528\u6307\u9488\u5c31\u662f\u5c06\u8be5\u6307\u9488\u653e\u5728\u4e00\u4e2a\u5bc4\u5b58\u5668\u4e2d\uff0c\u7136\u540e\u5728\u5b58\u50a8\u5668\u5f15\u7528\u4e2d\uff0c\u4f7f\u7528\u8fd9\u4e2a\u5bc4\u5b58\u5668\uff0c \u5c40\u90e8\u53d8\u91cf\u901a\u5e38\u4fdd\u5b58\u5728\u5bc4\u5b58\u5668\u4e2d\u3002<\/li>\n<li>\u6570\u636e\u4f20\u9001\u6307\u4ee4: mov<\/li>\n<li>\u7b97\u6570\u903b\u8f91\u64cd\u4f5c\uff1a add\uff0c sub\uff0c imul\uff0c sal\uff0c shl\uff0c leal, imull, mull, idivl, divl<\/li>\n<li>\u63a7\u5236\uff1a\u6761\u4ef6\u7801\uff0c\u8df3\u8f6c\u6307\u4ee4\uff0ctest, sete, sets, setg etc, cmp, jmp,\u00a0<strong>\u6761\u4ef6\u7801\u4e00\u822c\u4f7f\u7528\u6bd4\u8f83\u3001\u7b97\u6570\u3001\u76f4\u63a5\u8bbe\u5b9a\u4e09\u79cd\u65b9\u5f0f\uff0c \u8df3\u8f6c\u6307\u4ee4\u5219\u5229\u7528\uff0c\u6761\u4ef6\u7801\u6765\u8fdb\u884c\u8df3\u8f6c\u6216\u8005\u95f4\u63a5\u8df3\u8f6c<\/strong><\/li>\n<li>\u6808\uff1a push, pop<\/li>\n<\/ul>\n<\/li>\n<li>C \u8bed\u8a00 \u63a7\u5236\u7ed3\u6784 \u6c47\u7f16\u8868\u793a\n<ul>\n<li>while, for\u00a0<strong>\u4e00\u822c\u662f\u5148\u5c06 for \u5faa\u73af\u8f6c\u53d8\u4e3a\u7b49\u4ef7\u7684 while \u5faa\u73af\uff0cwhile \u5faa\u73af \u5957\u7528\u56fa\u5b9a\u7684\u6c47\u7f16\u4ee3\u7801 \u6a21\u5f0f\u3002<\/strong>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-text\"><code class=\"text  language-text\">   do\r\n    body-statement\r\n    while(test-expr)\r\n\r\n  loop:\r\n    body-statement\r\n    t = test-expr;\r\n    if(t)\r\n      goto loop;\r\n  done:\r\n\r\n\r\n  while(test-expr)\r\n    body-statement\r\n\r\n    t = test-expr;\r\n    if(!t)\r\n      goto done;\r\n  loop:\r\n    body-statement\r\n    t = test-expr;\r\n    if(t)\r\n      goto loop;\r\n  done:\r\n<\/code><\/pre>\n<\/div>\n<\/li>\n<li>switch \u7684\u5b9e\u73b0<br \/>\n\u4f7f\u7528\u8df3\u8f6c\u8868 \u5b9e\u73b0\uff0c\u6765\u8fbe\u5230 \u6267\u884c\u65f6\u95f4\u8ddf \u5f00\u5173\u6570\u91cf\u65e0\u5173\u3002<\/li>\n<li>\u6761\u4ef6\u4f20\u9001\u6307\u4ee4<br \/>\n\u56e0\u4e3a\u73b0\u4ee3\u5904\u7406\u5668\u7684\u6d41\u6c34\u7ebf\u8bbe\u8ba1\uff0c\u5bfc\u81f4\u5728\u6761\u4ef6\u5224\u65ad\u65f6\u5019\uff0c\u624d\u80fd\u786e\u5b9a\u4e0b\u4e00\u6761\u6267\u884c\u6307\u4ee4\u7684\u4f4d\u7f6e\uff0c\u800c\u5bfc\u81f4\u6309\u7167\u987a\u5e8f\u6267\u884c \u51c6\u5907\u7684\u4ee3\u7801\u53ef\u80fd\u88ab\u629b\u5f03\uff0c\u800c\u5bf9\u5e94\u7684\u51c6\u5907\u5de5\u4f5c\u5219\u53d8\u4e3a\u4e86\u6d6a\u8d39\u3002 \u800c \u6761\u4ef6\u4f20\u9001 \u6307\u4ee4\u5148\u8ba1\u7b97\u51fa\u6761\u4ef6\u64cd\u4f5c\u7684\u4e24\u79cd\u7ed3\u679c\uff0c\u7136\u540e\u6839\u636e\u6761\u4ef6\u6765\u9009\u62e9\u6ee1\u8db3\u7684\u7ed3\u679c\u3002\u4ece\u800c\u907f\u514d\u4e86 \u56e0\u4e3a\u8df3\u8f6c\u6307\u4ee4 \u5e26\u6765\u7684\u8d44\u6e90\u6d6a\u8d39\u3002\u53e6\u4e00\u65b9\u9762\u73b0\u4ee3\u5904\u7406\u5668\u90fd\u91c7\u7528\u4e86 \u5206\u652f\u9884\u6d4b \u903b\u8f91\uff0c\u6765\u8bd5\u56fe\u731c\u6d4b\u6bcf\u6761\u8df3\u8f6c\u6307\u4ee4\u662f\u5426\u88ab\u6267\u884c\u3002\uff08\u5904\u7406\u5668\u8bbe\u8ba1\u8bd5\u56fe\u8fbe\u5230 90%\u7684\u6b63\u786e\u7387\uff09\uff0c\u6b63\u786e\u7684\u9884\u6d4b\u53ef\u4ee5\u6ca1\u6709\u4ee3\u4ef7\uff0c\u7136\u800c\u989d\u9519\u8bef\u7684\u9884\u6d4b\u5219\u4f1a\u5e26\u6765\u4e25\u91cd\u6069\u60e9\u7f5a\uff0c\u5927\u7ea6 20-40 \u7684\u65f6\u949f\u5468\u671f\u7684\u6d6a\u8d39\uff0c\u5bfc\u81f4\u6027\u80fd\u4e25\u91cd\u4e0b\u964d\u3002<br \/>\n\u4e3e\u4f8b\uff1a \u4f8b\u5982\u7b80\u5355 \u4e09\u76ee\u8fd0\u7b97\u7b26\uff0c x &gt; y ? x+y : x-y, \u5f53\u4e24\u4e2a\u8868\u8fbe\u5f0f\u5177\u6709\u526f\u4f5c\u7528\u7684\u65f6\u5019\u5219\u4e0d\u80fd\u5e94\u7528\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7ed3\u6784\u5b9e\u73b0:\n<ul>\n<li>\u6570\u7ec4\u5206\u914d\u548c\u8bbf\u95ee\uff1a \u57fa\u672c\u5b9e\u73b0\u4e3a, \u5728\u5b58\u50a8\u5668\u4e2d\u5206\u914d\u4e00\u4e2a\u8fde\u7eed\u7684 T A[N], L * N \u5b57\u8282\u7684\u8fde\u7eed\u5927\u5c0f\u7684\u7a7a\u95f4\u3002 L\u4e3aT\u7c7b\u578b\u7684\u5b57\u8282\u5927\u5c0f\u3002\u800cC\u8bed\u8a00\u4e2d\u6570\u5b57\u6307\u9488\u7684\u5b9e\u73b0\uff08ptr ++ \uff09\u5219\u5b9e\u73b0\u4e3a\u5355\u7eaf\u7684 \u5730\u5740\u8fd0\u7b97\u3002\u5d4c\u5957\u6570\u7ec4 \u5219\u4ee5 \u884c\u4f18\u5148\u3001\u5217\u4f18\u5148 \u7684\u65b9\u5f0f\u8fdb\u884c\u5c55\u5f00\u3002<\/li>\n<li>Struct \u7684\u5b9e\u73b0\uff0c \u53d8\u91cf\u4e3a \u9996\u5730\u5740 + \u504f\u79fb\u91cf\u3002<\/li>\n<li>\u6570\u636e\u5bf9\u9f50\uff1a \u8ba1\u7b97\u673a\u7cfb\u7edf\u5bf9 \u57fa\u672c\u6570\u636e\u7ed3\u6784\u7c7b\u578b\u7684\u5927\u5c0f\u505a\u4e86\u9650\u5236\uff0c8\u7684\u500d\u6570\u7b49\u3002\u8fd9\u79cd \u5bf9\u9f50\u9650\u5236\uff0c\u7b80\u5316\u4e86 \u5904\u7406\u5668\u548c\u5b58\u50a8\u7cfb\u7edf\u4e4b\u95f4\u7684\u786c\u4ef6\u8bbe\u8ba1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8fc7\u7a0b\u5b9e\u73b0<br \/>\n<strong>\u8fc7\u7a0b\u8c03\u7528 \u5305\u62ec\u6570\u636e\u4f20\u9012\uff08\u8fc7\u7a0b\u53c2\u6570\u3001\u8fd4\u56de\u503c\uff09\u3001\u63a7\u5236\u8df3\u8f6c\u3002\u5728\u8fdb\u5165\u662f\u4e3a\u8fc7\u7a0b\u7684\u5c40\u90e8\u53d8\u91cf\u5206\u914d\u7a7a\u95f4\uff0c\u5e76\u5728\u9000\u51fa\u65f6\u5019\u91ca\u653e\u8fd9\u4e9b\u7a7a\u95f4\u3002<\/strong><\/p>\n<ul>\n<li>\u7b80\u5355\u6307\u4ee4:<br \/>\n\u8f6c\u79fb\u63a7\u5236\uff1a call, leave, ret.<br \/>\ncall: \u5c06\u8fd4\u56de\u5730\u5740\u5165\u6808\uff08call\u4e4b\u540e\u7684\u4e0b\u4e00\u6761\u547d\u4ee4\u7684\u5730\u5740\uff09 2. \u8df3\u8f6c\u5230\u88ab\u8c03\u7528\u7684\u8fc7\u7a0b\u5904\u3002<br \/>\nret\uff1a \u4ece\u6808\u4e2d\u5f39\u51fa\u5730\u5740\uff0c\u5e76\u8df3\u8f6c\u5230\u6b64\u4f4d\u7f6e\u3002\u9700\u8981\u5c06\u6808\u6307\u9488\u6307\u5411call\u6307\u4ee4\u5b58\u50a8\u7684\u653e\u56de\u5730\u5740\u7684\u4f4d\u7f6e\uff08\u9700\u8981\u81ea\u5df1\u63a7\u5236\uff09<br \/>\nleave: \u00a0\u00a0\u00a0 movl %ebp, %esp; popl %ebp \u4e3aret \u8fd4\u56de\u505a\u597d\u51c6\u5907\u5de5\u4f5c<\/p>\n<p>\u5982\u679c\u4f7f\u7528\u6574\u6570\uff0c\u6307\u9488\u4f5c\u4e3a\u8fd4\u56de\u503c\u7684\u8bdd\uff0c\u53ef\u4ee5\u4f7f\u7528%eax\u4f20\u9012\u3002\uff08\u5176\u4ed6\u7684\u5462\uff1f\uff09<br \/>\n\u5bc4\u5b58\u5668\u4f7f\u7528\uff1a \u5bc4\u5b58\u5668\u662f\u8ba1\u7b97\u4e2d\u516c\u7528\u7684\u8d44\u6e90\u3002\u4e3a\u4e86\u4fdd\u8bc1 \u88ab\u8c03\u7528\u8005\u4e0d\u4f1a\u8986\u76d6\u8c03\u7528\u8005\u65f6\u5019\u7528\u7684\u5bc4\u5b58\u5668\u7684\u6570\u503c\u3002\u9700\u8981\u9075\u5b88\u89c4\u8303\u3002<br \/>\n%eax, %edx, %ecx \u8c03\u7528\u8005\u4fdd\u5b58\u5bc4\u5b58\u5668\uff0c %ebx, %esi, %edi \u88ab\u8c03\u7528\u8005\u4fdd\u5b58\u5bc4\u5b58\u5668\u3002 \u9700\u8981\u8c03\u7528\u8005\u4e0e\u88ab\u8c03\u7528\u8005\u914d\u5408\u6765\u4fdd\u62a4\u5171\u4eab\u7684\u5bc4\u5b58\u5668\u5185\u5bb9\u3002<\/li>\n<li>\u5b9e\u73b0\u8fc7\u7a0b:<br \/>\n\u51fd\u6570\u8c03\u7528\u8fc7\u7a0b\u7684\u4e24\u4e2a\u5bc4\u5b58\u5668 %ebp(\u5e27\u6307\u9488), %esp\uff08\u6808\u6307\u9488\uff09 \u5e27\u6307\u9488\u4fdd\u5b58\u5f53\u524d\u8fc7\u7a0b\u7684\u6700\u9ad8\u4f4d\u7f6e\uff0c%esp\u5219\u5411\u4e0b\u589e\u957f\uff0c \u7528\u4e8e\u5206\u914d\u5fc5\u8981\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u8c03\u7528\u51fd\u6570\u53c2\u6570\u7b49\u3002 \u5728\u8c03\u7528\u65f6\uff0c \u9996\u5148\u538b\u5165\u8c03\u7528\u53c2\u6570\uff0c\u8fd4\u56de\u5730\u5740\uff0c \u538b\u5165%ebp, \u8c03\u7528\u540e\uff0c\u5c06 %ebp \u91cd\u7f6e\u4e3a\u5f53\u524d\u7684%esp\uff0c \u6807\u8bb0\u786e\u5b9a\u5f53\u524d\u7684 \u51fd\u6570\u7684\u6700\u9ad8\u5730\u5740\u3002\u8fd4\u56de\u65f6, movl %ebp, %esp; popl %ebp; ret; \u6062\u590d\u8c03\u7528\u51fd\u6570\u4e4b\u524d\u7684\u6837\u5b50\u3002\u5929\u751f\u7684\u5177\u6709\u9012\u5f52\u5c5e\u6027\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"374\" data-height=\"568\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-248ed2bc9b197e6b.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/374\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-248ed2bc9b197e6b.png\" data-original-width=\"374\" data-original-height=\"568\" data-original-format=\"image\/png\" data-original-filesize=\"29387\" data-image-index=\"1\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">call_stack.png<\/div>\n<\/div>\n<ul>\n<li>\u4ec0\u4e48\u65f6\u5019\u9700\u8981\u5e27\u6307\u9488:\n<ul>\n<li>\u5c40\u90e8\u53d8\u91cf\u592a\u591a\uff0c\u4e0d\u80fd\u90fd\u5b58\u5728\u5728\u5bc4\u5b58\u5668\u4e2d<\/li>\n<li>\u6709\u4e9b\u5c40\u90e8\u53d8\u91cf\u662f\u6570\u7ec4\u6216\u8005\u7ed3\u6784<\/li>\n<li>\u51fd\u6570\u7528\u53d6\u5730\u5740\u64cd\u4f5c\u7b26&amp;\uff0c\u6765\u8ba1\u7b97\u4e00\u4e2a\u5c40\u90e8\u53d8\u91cf\u7684\u5730\u5740<\/li>\n<li>\u51fd\u6570\u5fc5\u987b\u5c06\u6808\u4e0a\u7684\u67d0\u4e9b\u53c2\u6570\u4f20\u9012\u5230\u53e6\u4e00\u4e2a\u51fd\u6570<\/li>\n<li>\u5728\u4fee\u6539\u4e00\u4e2a\u88ab\u8c03\u7528\u8005\u4fdd\u5b58\u5bc4\u5b58\u5668\u4e4b\u524d\uff0c\u9700\u8981\u4fdd\u5b58\u5b83\u7684\u72b6\u6001<\/li>\n<\/ul>\n<\/li>\n<li>X86-64 \u4e2d\u5bf9\u4e8e\u8fc7\u7a0b\u7684 \u4e00\u4e9b\u5177\u4f53\u4f18\u5316\uff1a\n<ul>\n<li>\u53c2\u6570\u901a\u8fc7\u5bc4\u5b58\u5668\u4f20\u9012\u5230\u8fc7\u7a0b\uff0c\u800c\u4e0d\u662f\u5728\u6808\u4e0a\uff0c\u6d88\u9664\u4e86\u5728\u6808\u4e0a\u5b58\u50a8\u548c\u68c0\u7d22\u503c\u7684\u5f00\u9500<\/li>\n<li>call \u6307\u4ee4\u5c06\u4e00\u4e2a64\u4f4d\u7684\u8fd4\u56de\u5730\u5740\u5b58\u50a8\u5728\u6808\u4e0a<\/li>\n<li>\u8bb8\u591a\u51fd\u6570\u4e0d\u9700\u8981\u6808\u5e27\uff0c\u53ea\u6709\u90a3\u4e9b\u4e0d\u80fd\u5c06\u6240\u6709\u5c40\u90e8\u53d8\u91cf\u5b58\u50a8\u5728\u5bc4\u5b58\u5668\u4e2d\u7684\u51fd\u6570\u624d\u9700\u8981\u5728\u6808\u4e0a\u5206\u914d\u7a7a\u95f4<\/li>\n<li><strong>\u6ca1\u6709\u5e27\u6307\u9488\uff0c\u4f5c\u4e3a\u66ff\u4ee3\uff0c\u5bf9\u6808\u4f4d\u7f6e\u7684\u5f15\u7528\u76f8\u5bf9\u4e8e\u6808\u6307\u9488\u3002<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ol start=\"8\">\n<li>C \u8bed\u8a00 \u6307\u9488\n<ul>\n<li>\u6bcf\u4e2a\u6307\u9488\u90fd\u5bf9\u5e94\u4e00\u4e2a\u5177\u4f53\u7684\u7c7b\u578b\uff1a \u6307\u9488\u7c7b\u578b\u4e0d\u662f\u673a\u5668\u4ee3\u7801\u4e2d\u7684\u4e00\u90e8\u5206\uff0cC\u8bed\u8a00\u63d0\u4f9b\u7684\u4e00\u79cd\u62bd\u8c61\uff0c\u5730\u5740\u8fd0\u7b97\uff0c\u6765\u907f\u514d\u5bfb\u5740\u9519\u8bef\u3002<\/li>\n<li>\u6bcf\u4e2a\u6307\u9488\u90fd\u6709\u4e00\u4e2a\u503c\uff0c \u8fd9\u4e2a\u503c\u662f\u67d0\u4e2a\u6307\u5b9a\u7c7b\u578b\u5bf9\u8c61\u7684\u5730\u5740\u3002<\/li>\n<li>\u6307\u9488\u7528&amp; \u8fd0\u7b97\u7b26\u521b\u5efa<\/li>\n<li>\u8fd0\u7b97\u7b26 * \u7528\u4e8e\u6307\u9488\u7684 \u95f4\u63a5\u5f15\u7528<\/li>\n<li>\u6570\u7ec4\u4e0e\u6307\u9488\u7d27\u5bc6\u5173\u8054<\/li>\n<li>\u6307\u9488\u7c7b\u578b\u8f6c\u6362\uff1a \u53ea\u6539\u53d8\u7c7b\u578b\uff0c\u800c\u4e0d\u662f\u503c<\/li>\n<li>\u6307\u9488\u53ef\u4ee5\u6307\u5411\u51fd\u6570\uff0c\u4e4b\u51fd\u6570\u673a\u5668\u4ee3\u7801\u4e2d\u7684 \u7b2c\u4e00\u6761 \u6307\u4ee4\u5730\u5740\u3002\u5c06<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<hr \/>\n<p>C\u8bed\u8a00\u8ddf\u6c47\u7f16\u6307\u4ee4 \u7684\u5dee\u522b\u5f88\u5927\uff0c\u5728\u6c47\u7f16\u8bed\u8a00\u4e2d\uff0c\u5404\u79cd\u6570\u636e\u7c7b\u578b\u4e4b\u95f4\u7684\u5dee\u8ddd\u5f88\u5c0f\uff0c\u7a0b\u5e8f\u4ee5\u6307\u4ee4\u5e8f\u5217\u6765\u8868\u793a\u3002\u6bcf\u6761\u6307\u4ee4\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u64cd\u4f5c\u3002\u7f16\u8bd1\u5668\u5fc5\u987b\u63d0\u4f9b\u591a\u6761\u6307\u4ee4\u6765\u4ea7\u751f\u548c\u64cd\u4f5c\u5404\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u6765\u5b9e\u73b0\u50cf\u6761\u4ef6\u3001\u5faa\u73af\u3001\u548c\u8fc7\u7a0b\u8fd9\u6837\u7684\u63a7\u5236\u7ed3\u6784\u3001\u62bd\u8c61\u673a\u5236\u3002<\/p>\n<h2>\u5904\u7406\u5668\u4f53\u7cfb\u7ed3\u6784<\/h2>\n<blockquote><p>\u4e00\u4e2a\u5904\u7406\u5668\u652f\u6301\u7684\u6307\u4ee4\u548c\u6307\u4ee4\u7684\u5b57\u8282\u7f16\u7801\u6210\u4e3a\u5b83\u7684 \u6307\u4ee4\u96c6\u4f53\u7cfb\u7ed3\u6784 \uff08ISA\uff09ISA\u7684\u7f16\u8f91\u5668\u7f16\u5199\u8005\u548c\u5904\u7406\u5668\u8bbe\u8ba1\u4eba\u5458\u4e4b\u95f4\u63d0\u4f9b\u4e86\u4e00\u4e2a<strong>\u6982\u5ff5\u62bd\u8c61\u5c42\u3002\u73b0\u4ee3\u5904\u7406\u5668\u7684\u5b9e\u9645\u5de5\u4f5c\u65b9\u5f0f\u53ef\u80fd\u8ddfISA \u9690\u542b\u7684\u8ba1\u7b97\u6a21\u578b\u5927\u76f8\u5f84\u5ead<\/strong><\/p><\/blockquote>\n<ol>\n<li>\u76ee\u7684<\/li>\n<\/ol>\n<ul>\n<li>\u8bbe\u8ba1 Y86 \u5904\u7406\u5668\uff0c\u9996\u5148\u662f\u57fa\u4e8e\u987a\u5e8f\u7684\u3001\u529f\u80fd\u6b63\u786e\u7684\u5904\u7406\u5668\u8bbe\u8ba1<\/li>\n<li>\u521b\u5efa\u4e00\u4e2a\u6d41\u6c34\u7ebf\u5316\u7684\u5904\u7406\u3002\u5904\u7406\u5668\u53ef\u4ee5\u540c\u65f6\u6267\u884c\u4e94\u6761\u6307\u4ee4\u7684\u4e0d\u540c\u9636\u6bb5<\/li>\n<\/ul>\n<ol start=\"2\">\n<li>Y86 \u6307\u4ee4\u7f16\u7801\uff0c\n<ul>\n<li>\u5177\u4f53\u7684\u63cf\u8ff0\u4e86\uff0c \u6307\u4ee4\u7684\u673a\u5668\u5b57\u8282\u8868\u793a\u3002\u5b57\u8282\u7f16\u7801\u5fc5\u987b\u6709\u552f\u4e00 \u7684\u89e3\u91ca\uff0c\u4efb\u4f55\u4e00\u4e2a\u5b57\u8282\u5e8f\u5217\u8981\u4e48\u662f\u4e00\u4e2a\u552f\u4e00\u7684\u6307\u4ee4\u5e8f\u5217\u7684\u7f16\u7801\uff0c\u8981\u4e48\u5c31\u4e0d\u662f\u4e00\u4e2a\u5408\u6cd5\u7684\u5b57\u8282\u5e8f\u5217\u3002 \u6bcf\u6761\u6307\u4ee4\u7684\u7b2c\u4e00\u4e2a\u5b57\u8282\u7801\u90fd\u6709\u552f\u4e00\u7684\u4ee3\u7801\u548c\u529f\u80fd\u7ec4\u5408\u3002\u7ed9\u5b9a\u8fd9\u4e2a\u5b57\u8282\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u51b3\u5b9a\u6240\u6709\u7684\u5176\u4ed6\u7684\u9644\u52a0\u5b57\u8282\u7684\u957f\u5ea6\u548c\u542b\u4e49\u3002\u8fd9\u4e2a\u6027\u8d28\u786e\u4fdd\u5904\u7406\u5668\u53ef\u4ee5\u65e0\u4e8c\u4e49\u6027\u7684\u6267\u884c\u76ee\u6807\u4ee3\u7801\u7a0b\u5e8f\u3002\u53cd\u6c47\u7f16\u7a0b\u5e8f\u7684\u7ffb\u8bd1\u89e3\u91ca\uff0c\u5c31\u662f\u5982\u6b64\u3002\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"527\" data-height=\"607\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-28f84295d283e143.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/527\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-28f84295d283e143.png\" data-original-width=\"527\" data-original-height=\"607\" data-original-format=\"image\/png\" data-original-filesize=\"44621\" data-image-index=\"2\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">command_sample.png<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<blockquote><p>RISC\uff08\u7cbe\u7b80\u6307\u4ee4\u96c6\uff09 \u548c CISC\uff08\u590d\u6742\u6307\u4ee4\u96c6\uff09\uff1a\u7b80\u5355\u7684\u6307\u4ee4\u96c6\u5f62\u5f0f\u53ef\u4ee5\u4ea7\u751f\u66f4\u641e\u7b11\u7684\u4ee3\u7801\uff0c \u5b9e\u9645\u4e0a\uff0c\u8bb8\u591a\u52a0\u5230\u6307\u4ee4\u96c6\u4e2d\u7684\u9ad8\u7ea7\u6307\u4ee4\u5f88\u96be\u88ab\u7f16\u8f91\u5668\u4ea7\u751f\uff0c\u6240\u4ee5\u4e5f\u5f88\u5c11\u88ab\u5229\u7528\u300290\u5e74\u4ee3\uff0c\u6c89\u6ca6\u9010\u6e10\u5e73\u606f\uff0c\u65e0\u8bba\u662f\u6de1\u51fa\u7684RISC\uff0c\u8fd8\u662f\u5355\u7eaf\u7684CISC\u90fd\u4e0d\u5982\u7ed3\u5408\u4e24\u8005\u601d\u60f3\u7cbe\u534e\u7684\u8bbe\u8ba1\u3002\u4eca\u5929\u7684RISC\u673a\u5668\u7684\u6307\u4ee4\u8868\uff0c\u5df2\u7ecf\u6709\u6570\u767e\u6761\u6307\u4ee4\uff0c\u51e0\u4e4e\u4e0e \u7cbe\u7b80\u6307\u4ee4\u96c6\u673a\u5668 \u7684\u540d\u5b57\u4e0d\u76f8\u7b26\u4e86\u3002\u90a3\u79cd\u5c06\u5b9e\u73b0\u7ec6\u8282\u66b4\u9732\u7ed9\u673a\u5668\u7ea7\u7a0b\u5e8f\u7684\u601d\u60f3\u5df2\u7ecf\u88ab\u8bc1\u660e\u662f\u76ee\u5149\u77ed\u6d45\u7684\u3002\uff08RISC\u505a\u8fc7\u8fd9\u6837\u7684\u4e8b\u60c5\uff1f\uff09<\/p><\/blockquote>\n<\/li>\n<li>Y86 \u7684\u5b9e\u73b0\uff1a\n<ol>\n<li>\u62c6\u5206\u6307\u4ee4\u4e3a\u9636\u6bb5\uff1a<\/li>\n<\/ol>\n<ul>\n<li>\u53d6\u6307\uff1a \u53d6\u6307\u9636\u6bb5\u4ece\u5b58\u50a8\u5668\u8bfb\u53d6\u6307\u4ee4\u5b57\u8282\uff0c\u5730\u5740\u4e3a\u7a0b\u5e8f\u8ba1\u6570\u5668\u7684\u503c\uff0c\u4ece\u6307\u4ee4\u4e2d \u62bd\u53d6\u51fa \u6307\u4ee4\u7684\uff0cicode\uff0c ifun\uff0c \u64cd\u4f5c\u7684\u5b57\u7b26\uff0c rA\uff0c rB, \u5e38\u6570<\/li>\n<li>\u8bd1\u7801\uff1a \u8bd1\u7801\u9636\u6bb5\u4ece\u5bc4\u5b58\u5668\u6587\u4ef6\u8bfb\u5165\u6700\u591a\u4e24\u4e2a\u64cd\u4f5c\u6570\uff0c\u5f97\u5230\u503c\uff0c valA\uff0c valB\u7b49\u3002<\/li>\n<li>\u6267\u884c\uff1a ALU\u8fd0\u7b97\uff0c<\/li>\n<li>\u8bbf\u5b58\uff1a \u53ef\u4ee5\u5c06\u6570\u636e\u5199\u5165\u5b58\u50a8\u5668\uff0c\u6216\u8005\u4ece\u5b58\u50a8\u5668\u8bfb\u51fa\u6570\u636e\u3002<\/li>\n<li>\u5199\u56de\uff1a \u5c06\u7ed3\u679c\u5199\u56de\u5230\u5bc4\u5b58\u5668\u6587\u4ef6<\/li>\n<li>\u66f4\u65b0PC\uff1a \u5c06PC\u8bbe\u7f6e\u6210\u4e3a\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u5730\u5740<br \/>\n<blockquote><p>\u5728\u8bbe\u8ba1\u786c\u4ef6\u65f6\u5019\uff0c \u4e00\u4e2a\u975e\u5e38\u7b80\u5355\u800c\u4e00\u81f4\u7684\u7ed3\u6784\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u964d\u4f4e\u590d\u6742\u5ea6\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\uff0c\u8ba9\u4e0d\u540c\u7684\u6307\u4ee4\u5171\u4eab\u5c3d\u91cf\u591a\u7684\u786c\u4ef6\uff0c\u56e0\u4e3a\u5728\u786c\u4ef6\u4e0a\u590d\u5236\u903b\u8f91\u5feb\u6bd4\u7528\u8f6f\u4ef6\u6765\u5904\u7406\u56f0\u96be\u7684\u591a\u3002<\/p><\/blockquote>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"409\" data-height=\"440\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-e4022b493b270fe7.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/409\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-e4022b493b270fe7.png\" data-original-width=\"409\" data-original-height=\"440\" data-original-format=\"image\/png\" data-original-filesize=\"26200\" data-image-index=\"3\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">command_flow.png<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<ol start=\"2\">\n<li>\u786c\u4ef6\u7ed3\u6784 (SEQ)<\/li>\n<\/ol>\n<ul>\n<li>\u7ec4\u5408\u7535\u8def\u4ece\u672c\u8d28\u4e0a\u8bb2\uff0c\u4e0d\u5b58\u50a8\u4efb\u4f55\u4fe1\u606f\uff0c\u4ed6\u4eec\u53ea\u662f\u7b80\u5355\u7684\u54cd\u5e94\u8f93\u5165\u4fe1\u53f7\u3002 \u4ea7\u751f\u7b49\u4e8e\u8f93\u5165\u7684\u67d0\u4e2a\u51fd\u6570\u7684\u8f93\u51fa\u3002<\/li>\n<li>\u5b58\u50a8\u8bbe\u5907\uff1a \u65f6\u949f\u5bc4\u5b58\u5668\uff1a \u5b58\u50a8\u5355\u4e2a\u4f4d\uff0c\u6216\u5b57\uff0c\u65f6\u949f\u4fe1\u53f7\u63a7\u5236\u5bc4\u5b58\u5668\u52a0\u8f7d\u8f93\u5165\u503c<\/li>\n<li>\u968f\u8fdb\u8bbf\u95ee\u5bc4\u5b58\u5668\uff1a \u5b58\u50a8\u591a\u4e2a\u5b57\uff0c\u7528\u5730\u5740\u6765\u9009\u62e9\u8be5\u8bfb\u6216\u8005\u5199\u3002\u5e94\u7528\u6709\uff1a\u5bc4\u5b58\u5668\u6587\u4ef6\uff0c %eax etc\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"373\" data-height=\"477\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-f2c2ce38ced5443d.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/373\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-f2c2ce38ced5443d.png\" data-original-width=\"373\" data-original-height=\"477\" data-original-format=\"image\/png\" data-original-filesize=\"33028\" data-image-index=\"4\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">register.png<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<ol start=\"5\">\n<li>\u6d41\u6c34\u7ebf\u901a\u7528\u539f\u7406\uff1a<br \/>\n<blockquote><p>\u6d41\u6c34\u7ebf\u5316\u7684\u4e00\u4e2a\u91cd\u8981\u7279\u6027\u5c31\u662f\u589e\u52a0\u4e86<strong>\u7cfb\u7edf\u7684\u541e\u5410\u91cf<\/strong>\uff08\u5355\u4f4d\u65f6\u95f4\u5185\u670d\u52a1\u7684\u987e\u5ba2\u7684\u603b\u6570\uff09\uff0c\u4ee3\u4ef7\u662f\u53ef\u80fd\u7a0d\u5fae\u7684\u589e\u52a0\u4e86\u5ef6\u8fdf\uff08\u670d\u52a1\u4e00\u4e2a\u7528\u6237\u6240\u9700\u7684\u65f6\u95f4\uff09\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c \u4e00\u4e2a\u5ba2\u6237\u9700\u8981\u6c99\u62c9\uff0c\u5728\u4e00\u4e2a\u975e\u6d41\u6c34\u7ebf\u5316\u7684\u670d\u52a1\u4e2d\uff0c\u975e\u5e38\u7b80\u5355\uff0c\u53ea\u9700\u8981\u5728\u6c99\u62c9\u9636\u6bb5\u505c\u7559\u3002\u4f46\u662f\u5728\u4e00\u4e2a\u6d41\u6c34\u7ebf\u5316\u7684\u670d\u52a1\u4e2d\uff0c\u5219\u9700\u8981\u65e0\u8c13\u7684\u5176\u4ed6\u9636\u6bb5\u7684\u7b49\u5f85\u3002<\/p><\/blockquote>\n<ul>\n<li>\u6d41\u6c34\u7ebf\u7684\u5c40\u9650\u6027\uff1a\u00a0<strong>\u8fd0\u884c\u65f6\u949f\u7684\u901f\u7387\u662f\u7531\u6700\u6162\u7684\u9636\u6bb5\u7684\u5ef6\u8fdf\u9650\u5236\u7684<\/strong>\u3002\u6240\u4ee5\u5bf9\u4e8e\u786c\u4ef6\u8bbe\u8ba1\u8005\u6765\u8bf4\uff0c\u5c06\u7cfb\u7edf\u8ba1\u7b97\u8bbe\u8ba1\u6210 \u5177\u6709\u76f8\u540c\u5ef6\u8fdf\u7684\u9636\u6bb5 \u662f\u4e00\u4e2a\u4e25\u5cfb\u7684\u6311\u6218\u3002<\/li>\n<li>\u9884\u6d4b\u4e0b\u4e00\u4e2aPC\uff1a\n<ol>\n<li>\u6d41\u6c34\u7ebf\u7684\u8bbe\u8ba1\u76ee\u7684\u662f \u6bcf\u4e2a\u65f6\u949f\u5468\u671f \u90fd\u53d1\u5c04\u4e00\u6761\u6307\u4ee4\uff0c\u4e5f\u5c31\u8bf4\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u90fd\u6709\u4e00\u6761\u65b0\u7684\u6307\u4ee4\u8fdb\u5165\u6267\u884c\u9636\u6bb5\u5e76\u6700\u7ec8\u5b8c\u6210\u3002<\/li>\n<li>\u8981\u505a\u5230\u8fd9\u4e00\u70b9\u5c31 \u9700\u8981\u5728\u53d6\u51fa\u5f53\u524d\u6307\u4ee4\u4e4b\u540e\uff0c\u9a6c\u4e0a\u786e\u8ba4\u4e0b\u4e00\u6761\u6307\u4ee4\u3002<\/li>\n<li>\u5982\u679c\u53d6\u51fa\u7684\u6307\u4ee4\u662f\u6761\u4ef6\u5206\u652f\u6307\u4ee4\uff0c\u8981\u5230\u51e0\u4e2a\u5468\u671f\u4e4b\u540e\uff0c\u624d\u80fd\u786e\u5b9a\u662f\u5426\u8981\u9009\u62e9\u5206\u652f\u3002(jxx)\u7c7b\u4f3c\u7684\u662fret<\/li>\n<li>\u5206\u652f\u9884\u6d4b\u548c\u5904\u7406\u9884\u6d4b\u9519\u8bef<\/li>\n<\/ol>\n<\/li>\n<li>\u6d41\u6c34\u7ebf\u5192\u9669\uff1a \u5c06\u6d41\u6c34\u7ebf\u5f15\u5165\u4e00\u4e2a\u5e26\u53cd\u9988\u7684\u7cfb\u7edf\uff0c\u5f53\u76f8\u90bb\u6307\u4ee4\u95f4\u5b58\u5728\u76f8\u5173\u65f6\u4f1a\u5bfc\u81f4\u51fa\u73b0\u95ee\u9898\uff0c \u8fd9\u4e9b\u76f8\u5173\u53ef\u80fd\u4f1a\u5bfc\u81f4\u6d41\u6c34\u7ebf\u4ea7\u751f\u8ba1\u7b97\u9519\u8bef\uff0c\u79f0\u4e3a<strong>\u5192\u9669<\/strong>\u3002\n<ol>\n<li>\u6570\u636e\u76f8\u5173: \u4e0b\u4e00\u6761\u6307\u4ee4\u4f1a\u7528\u5230\u8fd9\u4e00\u6761\u6307\u4ee4\u8ba1\u7b97\u51fa\u7684\u7ed3\u679c\u3002(\u6570\u636e\u5192\u9669)<\/li>\n<li>\u63a7\u5236\u76f8\u5173: \u4e00\u6761\u6307\u4ee4\u8981\u786e\u5b9a\u4e0b\u4e00\u6761\u6307\u4ee4\u7684\u4f4d\u7f6e\u3002\u4f8b\u5982\u6267\u884c\u6761\u4ef6\u8df3\u8f6c\u3002(\u63a7\u5236\u5192\u9669)\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"626\" data-height=\"359\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-f60d8961ceeac340.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/626\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-f60d8961ceeac340.png\" data-original-width=\"626\" data-original-height=\"359\" data-original-format=\"image\/png\" data-original-filesize=\"35370\" data-image-index=\"5\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">flow_command.png<\/div>\n<\/div>\n<\/li>\n<\/ol>\n<\/li>\n<li>\u63a7\u5236\u903b\u8f91\uff1a\n<ol>\n<li>\u5904\u7406ret<\/li>\n<li>\u52a0\u8f7d\u4f7f\u7528\u5192\u9669<\/li>\n<li>\u9884\u6d4b\u9519\u8bef\u7684\u5206\u652f\uff1a \u5728\u5206\u652f\u903b\u8f91\u53d1\u73b0\u4e0d\u5e94\u8be5\u9009\u62e9\u5206\u652f\u4e4b\u524d\uff0c\u5206\u652f\u76ee\u6807\u5904\u7684\u51e0\u6761\u6307\u4ee4\u5df2\u7ecf\u8fdb\u5165\u5230\u4e86\u6d41\u6c34\u7ebf\u4e2d\uff0c\u5fc5\u987b\u4ece\u6d41\u6c34\u7ebf\u4e2d\u820d\u5f03\u8fd9\u4e9b\u64cd\u4f5c<\/li>\n<li>\u5f53\u4e00\u6761\u6307\u4ee4\u53d1\u751f\u5f02\u5e38\uff0c\u9700\u8981\u7981\u6b62\u540e\u9762\u7684\u6307\u4ee4\u66f4\u65b0 \u7a0b\u5e8f\u5458\u53ef\u89c1\u72b6\u6001\uff0c\u5e76\u4e14\u5728\u5f02\u5e38\u6307\u4ee4\u5230\u8fbe\u5199\u56de\u9636\u6bb5\u65f6\uff0c\u505c\u6b62\u6267\u884c\u3002<\/li>\n<\/ol>\n<\/li>\n<li>\u901a\u7528\u7684\u5192\u9669\u7b80\u5355\u89e3\u51b3\u529e\u6cd5\uff1a\n<ol>\n<li>\u6682\u505c\u6765\u907f\u514d\u5192\u9669\uff1a \u8ba9\u4e00\u6761\u6307\u4ee4\u505c\u7559\u5728\u8bd1\u7801\u9636\u6bb5\uff0c\u76f4\u5230\u4ed6\u9700\u8981\u7684\u64cd\u4f5c\u6570\u7684\u6307\u4ee4\u901a\u8fc7\u4e86\u5199\u56de\u9636\u6bb5\uff0c\u8fd9\u6837\u6765\u907f\u514d\u6570\u636e\u5192\u9669\u3002 \u867d\u7136\u8fd9\u4e00\u673a\u5236\u5b9e\u73b0\u8d77\u6765\u76f8\u5f53\u7b80\u5355\uff0c\u4f46\u662f\u5f97\u5230\u7684\u6027\u80fd\u5374\u5e76\u4e0d\u597d\uff0c\u4e00\u6761\u6307\u4ee4\u66f4\u65b0\u4e00\u4e2a\u5bc4\u5b58\u5668\uff0c\u7d27\u968f\u5176\u540e\u7684\u6307\u4ee4\u4f7f\u7528\u88ab\u66f4\u65b0\u8fc7\u7684\u5bc4\u5b58\u5668\u7684\u4e8b\u60c5\u975e\u5e38\u666e\u904d\uff0c\u4e3a\u4e86\u4fdd\u8bc1\u6b63\u786e\u7684\u6267\u884c\uff0c\u5728\u5176\u4e2d\u4e0d\u65ad\u7684\u52a0\u5165nop\uff0c\u5bfc\u81f4\u6d41\u6c34\u7ebf\u6682\u505c\u957f\u8fbe\u4e09\u4e2a\u5468\u671f\uff0c\u8fd9\u4e25\u91cd\u7684\u964d\u4f4e\u4e86 \u6574\u4f53\u7684\u541e\u5ea6\u91cf\u3002<\/li>\n<li>\u8f6c\u53d1\u6765\u907f\u514d\u5192\u9669\uff1a \u5c06\u7ed3\u679c\u76f4\u63a5\u4ece\u4e00\u4e2a\u6d41\u6c34\u7ebf\u9636\u6bb5<strong>\u4f20\u5230\u8f83\u65e9\u9636\u6bb5<\/strong>\u7684\u6280\u672f\u79f0\u4e3a \u6570\u636e\u8f6c\u53d1\uff0c \u4e5f\u5c31\u662f\u8f83\u65e9\u7684\u53cd\u9988\u5230\u9700\u8981\u7684\u9636\u6bb5\u3002\u6bd4\u5982 \u8bd1\u7801\u9636\u6bb5\u3002<\/li>\n<li>\u63a7\u5236\u903b\u8f91\u7684\u7279\u6b8a\u5904\u7406\uff1a \u63a7\u5236\u903b\u8f91\u7684\u4f18\u5316\uff0c\u6709\u4e9b\u7e41\u6742\uff0c\u9700\u8981\u7ed3\u5408 \u65f6\u949f\u5468\u671f\u3001\u4ee3\u7801\u6267\u884c\u9636\u6bb5\u6765 \u5177\u4f53\u5206\u6790\u3002<\/li>\n<\/ol>\n<\/li>\n<li>\u672a\u8003\u8651\u7684\u65b9\u9762\uff1a\n<ol>\n<li>\u591a\u5468\u671f\u6307\u4ee4\uff0c\u4e00\u4e9b\u590d\u6742\u7684\u64cd\u4f5c \u4f8b\u5982\u4e58\u6cd5\u3001\u9664\u6cd5\u3002\u4e00\u79cd\u65b9\u6cd5\u662f \u540c\u6b65\u5230\u7279\u6b8a\u5355\u5143\u6765\u8fdb\u884c\u5904\u7406\uff0c\u6d41\u6c34\u7ebf\u7ee7\u7eed\u5904\u7406\u5176\u4ed6\u6307\u4ee4(\u5e76\u53d1\u6267\u884c)\u3002\u4f46\u662f<strong>\u4e0d\u540c\u7684\u5355\u5143\u64cd\u4f5c\u9700\u8981\u662f\u540c\u6b65<\/strong>\u7684\uff0c\u4ee5\u907f\u514d \u51fa\u9519\u3002<\/li>\n<li>\u5b58\u50a8\u5668\u63a5\u53e3\uff1a \u6d89\u53ca\u5230\u5b58\u50a8\u5668\u7684\u547d\u4ee4\uff0c\u5177\u4f53\u6765\u8bf4\u662f \u662f\u4ee5\u5b58\u50a8\u5668\u4f4d\u7f6e\u7684\u865a\u62df\u5730\u5740\u6765\u5f15\u7528\u4ed6\u4eec\uff0c\u8fd9\u6d89\u53ca\u5230\uff0c \u5730\u5740\u7ffb\u8bd1\uff08\u5c06\u865a\u62df\u5730\u5740\u7ffb\u8bd1\u6210\u7269\u7406\u5730\u5740\uff09\uff0c\u7136\u540e\u5bf9\u5b58\u50a8\u5668\u8fdb\u884c\u64cd\u4f5c\u3002\u5728\u6709\u4e9b\u60c5\u51b5\uff0c\u88ab\u5f15\u7528\u7684\u5b58\u50a8\u5668\u4f4d\u7f6e\u50a8\u5b58\u5728\u786c\u76d8\u4e0a\uff0c\u786c\u4ef6\u4f1a\u4ea7\u751f\u4e00\u4e2a \u7f3a\u9875 \u5f02\u5e38\u4fe1\u53f7\uff0c\u8fd9\u4e2a\u5f02\u5e38\u4f1a\u5bfc\u81f4\u5904\u7406\u5668\u8c03\u7528\u64cd\u4f5c\u7cfb\u7edf\u7684\u7f3a\u9875\u4ee3\u7801\uff0c\u7136\u540e\u8bbf\u95ee\u78c1\u76d8\u6570\u636e\u5230\u9ad8\u901f\u7f13\u5b58\u4e2d\uff0c\u8bbf\u95ee \u78c1\u76d8\u5c31\u9700\u8981\u6570\u767e\u4e07\u4e2a \u65f6\u949f\u5468\u671f\u3002\u6240\u4ee5\u5176\u5bfc\u81f4\u7684\u6027\u80fd\u4e0b\u964d\u662f\u975e\u5e38\u4e25\u91cd\u7684\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ol>\n<ul>\n<li>ISA\u6307\u4ee4\u96c6\u7ed3\u6784\uff0c\u63d0\u4f9b\u4e86\u4ee3\u7801\u5230\u5904\u7406\u5668\u5177\u4f53\u5b9e\u73b0\u7684\u4e00\u5c42\u62bd\u8c61\u3002\u4e5f\u5c31\u662f\u4e00\u6761\u6307\u4ee4\u6267\u884c\u5b8c\u4e86\uff0c\u4e0b\u4e00\u6761\u6307\u4ee4\u6267\u884c\u3002<\/li>\n<li>\u6d41\u6c34\u7ebf\u5316 \u901a\u8fc7\u8ba9\u4e0d\u540c\u7684\u9636\u6bb5\u5e76\u884c\u64cd\u4f5c\uff0c\u6539\u8fdb\u4e86\u7cfb\u7edf\u7684\u541e\u5ea6\u91cf\u6027\u80fd\uff0c\u7136\u800c\u6211\u4eec\u5fc5\u987b\u5c0f\u5fc3\uff0c\u4ee5\u4fbf\u6d41\u6c34\u7ebf\u5316 \u6267\u884c\u4e0e\u7a0b\u5e8f\u7684\u987a\u5e8f\u6267\u884c\u5f97\u5230\u76f8\u540c\u7684\u7a0b\u5e8f\u884c\u4e3a\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u4f18\u5316\u7a0b\u5e8f\u6027\u80fd<\/h2>\n<ol>\n<li>\u4ee3\u7801\u6807\u51c6\uff1a\n<ul>\n<li>\u6e05\u6670\u7b80\u6d01\u7684\u4ee3\u7801\uff0c\u80fd\u591f\u5f88\u5bb9\u7684\u7406\u89e3\u4ee3\u7801\u3002<\/li>\n<li>\u8fd0\u884c\u7684\u5feb\uff08\u6bd4\u5982\u5b9e\u65f6\u5904\u7406\u89c6\u9891\u5e27\uff0c\u7f51\u7edc\u5305\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u5982\u4f55\u7f16\u5199\u9ad8\u6548\u7387\u7684\u4ee3\u7801\uff1a\n<ol>\n<li>\u7ec4\u5408\u6b63\u786e\u7684\u6570\u636e\u7ed3\u6784\u548c\u7b97\u6cd5\uff0c<\/li>\n<li>\u9700\u8981\u7f16\u5199\u51fa\u7f16\u8bd1\u5668\u80fd\u591f\u6709\u6548\u4f18\u5316\u4ee5\u8f6c\u6362\u6210\u9ad8\u6548\u53ef\u6267\u884c\u4ee3\u7801\u7684\u6e90\u4ee3\u7801\u3002\u5bf9\u4e8e\u7b2c\u4e8c\u70b9\uff0c\u7406\u89e3\u7f16\u8bd1\u5668\u7684\u80fd\u529b\u548c\u5c40\u9650\u6027\u662f\u975e\u5e38\u91cd\u8981\u7684<\/li>\n<li>\u5e76\u884c\u8ba1\u7b97<br \/>\n<blockquote><p>\u5728\u7b97\u6cd5\u7ea7\u522b\u4e0a\uff0c \u51e0\u5206\u949f\u5c31\u80fd\u7f16\u5199\u4e00\u4e2a\u63d2\u5165\u6392\u5e8f\uff0c\u800c\u641e\u7b11\u7684\u662f\u6392\u5e8f\u7b97\u6cd5\u7a0b\u5e8f\u53ef\u80fd\u9700\u8981\u4e00\u5929\u6216\u66f4\u957f\u7684\u65f6\u95f4 \u6765\u5b9e\u73b0\u548c\u4f18\u5316\uff0c\u5728\u4ee3\u7801\u7ea7\u4e0a\uff0c \u8bb8\u591a\u4f4e\u7ea7\u522b\u7684\u4f18\u5316\u5f80\u5f80\u4f1a\u964d\u4f4e\u7a0b\u5e8f\u7684\u53ef\u8bfb\u6027\u548c\u6a21\u5757\u6027\uff0c\u662f\u7684\u7a0b\u5e8f\u5bb9\u6613\u51fa\u9519\uff0c\u5e76\u4e14\u96be\u4ee5\u4fee\u6539\u548c\u6269\u5c55\uff0c\u5bf9\u4e8e\u5728\u6027\u80fd\u91cd\u8981\u7684\u73af\u5883\u4e2d\u53cd\u590d\u6267\u884c\u7684\u4ee3\u7801\uff0c\u8fdb\u884c\u5e7f\u6cdb\u7684\u4f18\u5316\u6bd4\u8f83\u5408\u9002\u3002\u4e00\u4e2a\u6311\u6218\u5c31\u662f\u5c3d\u7ba1\u505a\u4e86\u5e7f\u6cdb\u7684\u4f18\u5316\uff0c\u4f46\u8fd8\u662f\u8981\u7ef4\u62a4\u4ee3\u7801\u4e00\u5b9a\u7a0b\u5ea6\u7684\u7b80\u6d01\u548c\u53ef\u8bfb\u6027\u3002\u4e00\u4e2a\u5f88\u6709\u7528\u7684\u7b56\u7565\u662f\uff0c\u53ea\u5199\u5230\u7f16\u8bd1\u5668\u80fd\u591f\u4ea7\u751f\u6709\u6548\u4ee3\u7801\u7684\u7a0b\u5ea6\u5c31\u597d\u4e86\u3002<\/p><\/blockquote>\n<\/li>\n<\/ol>\n<\/li>\n<li>\u7a0b\u5e8f\u4f18\u5316:\n<ul>\n<li>\u6d88\u9664\u4e0d\u5fc5\u8981\u7684\u5185\u5bb9\uff0c\u8ba9\u4ee3\u7801\u5c3d\u53ef\u80fd\u6709\u6548\u7684\u6267\u884c\u671f\u671b\u7684\u5de5\u4f5c\u3002\u8fd9\u5305\u62ec\u4e0d\u5fc5\u8981\u7684\u51fd\u6570\u8c03\u7528\uff0c\u6761\u4ef6\u6d4b\u8bd5\uff0c\u5b58\u50a8\u5668\u5f15\u7528\u3002\u5e76\u4e14\u8fd9\u4e9b\u662f\u4e0d\u4f9d\u8d56\u4e8e\u76ee\u6807\u73af\u5883\u7684\uff08\u601d\u60f3\u901a\u7528\uff09<\/li>\n<li>\u5229\u7528\u5904\u7406\u5668\u63d0\u4f9b\u7684\u6307\u4ee4\u7ea7\u8868\u793a\u8fdb\u884c\u4f18\u5316\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7f16\u8bd1\u5668\u7684\u5c40\u9650\u6027\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">int<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token keyword\">int<\/span> <span class=\"token function\">func1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n  <span class=\"token keyword\">int<\/span> <span class=\"token function\">func2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">return<\/span> <span class=\"token function\">f<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> <span class=\"token number\">4<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n\r\n  <span class=\"token keyword\">int<\/span> counter <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\r\n  in <span class=\"token function\">func1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">return<\/span> counter <span class=\"token operator\">++<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<blockquote><p>func1 \u51fd\u6570\u5177\u6709\u526f\u4f5c\u7528\uff0c\u4ed6\u4fee\u6539\u4e86\u7a0b\u5e8f\u72b6\u6001\u7684\u4e00\u90e8\u5206\uff0c\u6539\u53d8\u4e86\u6574\u4f53\u7a0b\u5e8f\u7684\u884c\u4e3a\uff0c\u5927\u591a\u6570\u7f16\u8f91\u5668\u4e0d\u4f1a\u8bd5\u56fe\u5224\u65ad\u4e00\u4e2a\u51fd\u6570\u662f\u5426\u5177\u6709\u526f\u4f5c\u7528\uff0c\u6240\u4ee5\uff0c\u7f16\u8bd1\u5668\u4f1a\u4fdd\u6301\u51fd\u6570\u8c03\u7528\u4e0d\u53d8\uff0c \u5e76\u4e0d\u4f1a\u6309\u7167\u4eba\u4eec\u9884\u671f\u7684 \u8fdb\u884c\u51fd\u6570\u8c03\u7528\u4f18\u5316<\/p><\/blockquote>\n<ul>\n<li>\u53e6\u4e00\u4e2a\u793a\u4f8b<br \/>\n\u6d88\u9664\u5faa\u73af\u7684\u4f4e\u6548\u7387\u4ee3\u7801\uff1b \u4f8b\u5982for(i = 0; i&lt; strlen(s); i++) \u4e2d\uff0cstrlen\u7684\u8c03\u7528\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u5047\u60f3strlen\u51fd\u6570\u53ea\u8c03\u7528\u4e00\u6b21\uff0c\u7136\u800c\u7f16\u8bd1\u5668\u5e76\u4e0d\u4f1a\u8fd9\u4e48\u505a\uff0c\u4ed6\u5047\u5b9a\u6bcf\u6b21strlen\u7684\u51fd\u6570\u8c03\u7528\u662f\u4e0d\u540c\u7684\u3002\u4ece\u800c\u5728\u6bcf\u6b21\u5faa\u73af\u4e2d\u591a\u589e\u52a0\u4e86\u4e00\u6b21\u51fd\u6570\u8c03\u7528\u3002<\/p>\n<blockquote><p>\u793a\u4f8b\u8bf4\u660e\u4e00\u4e2a\u95ee\u9898\uff1a \u4e00\u4e2a\u770b\u4e0a\u53bb\u65e0\u8db3\u8f7b\u91cd\u7684\u4ee3\u7801\u7247\u6bb5\u6709\u9690\u85cf\u7684\u6e10\u8fdb\u4f4e\u6548\u7387\uff0c\u901a\u5e38\u4eba\u4eec\u4f1a\u5728\u4e00\u4e2a\u5c0f\u7684\u6570\u636e\u96c6\u4e2d\u8fdb\u884c\u6d4b\u8bd5\u548c\u5206\u6790\u7a0b\u5e8f\uff0c\u5bf9\u6b64\u7a0b\u5e8f\u7684\u6027\u80fd\u662f\u8db3\u591f\u7684\u3002\u4e0d\u8fc7\uff0c \u5f53\u7a0b\u5e8f\u6700\u7ec8\u90e8\u7f72\u597d\u4ee5\u540e\uff0c\u8fc7\u7a0b\u5b8c\u5168\u53ef\u80fd\u5e94\u7528\u5728\u4e00\u4e2a100\u4e07\u4e2a\u5b57\u7b26\u4e32\u4e0a\u3002\u7a81\u7136\uff0c\u8fd9\u6bb5\u65e0\u5371\u9669\u7684\u4ee3\u7801\u53d8\u6210\u4e86\u7a0b\u5e8f\u7684\u4e3b\u8981\u6027\u80fd\u74f6\u9888\u3002\u5927\u578b\u7f16\u7a0b\u9879\u76ee\u4e2d\u51fa\u73b0\u8fd9\u6837\u7684\u95ee\u9898\u7684\u6545\u4e8b\u6bd4\u6bd4\u7686\u662f\u3002\u4e00\u4e2a\u6709\u7ecf\u9a8c\u7684\u7a0b\u5e8f\u5458\u5de5\u4f5c\u7684\u4e00\u90e8\u5206\u5c31\u662f\u907f\u514d\u5f15\u5165\u8fd9\u6837\u7684\u6e10\u8fdb\u4f4e\u6548\u7387\u3002<br \/>\n\u8fd9\u4e2a\u4f18\u5316\u662f\u5e38\u89c1\u7684\u4e00\u7c7b\u4f18\u5316\u4f8b\u5b50\uff1a \u4ee3\u7801\u79fb\u52a8\uff0c \u8fd9\u7c7b\u4f18\u5316\u5305\u62ec\u8bc6\u522b\u8981\u6267\u884c\u7684\u591a\u6b21\u4f46\u662f\u8ba1\u7b97\u7ed3\u679c\u4e0d\u4f1a\u6539\u53d8\u7684\u8ba1\u7b97\u3002\u56e0\u800c\u53ef\u4ee5\u5c06\u8ba1\u7b97\u79fb\u52a8\u5230\u4ee3\u7801\u524d\u9762\u4e0d\u4f1a\u88ab\u591a\u6b21\u6c42\u503c\u7684\u90e8\u5206\uff0c\u7f16\u8bd1\u5668\u4f1a\u8bd5\u56fe\u8fdb\u884c\u4ee3\u7801\u79fb\u52a8\uff0c\u4ed6\u4eec\u4e0d\u80fd\u591f\u53d1\u73b0\u4e00\u4e2a\u51fd\u6570\u662f\u5426\u4f1a\u6709\u526f\u4f5c\u7528\uff0c\u56e0\u800c\u5047\u8bbe\u51fd\u6570\u4f1a\u6709\u526f\u4f5c\u7528\u3002\u6240\u4ee5\uff0c\u7a0b\u5e8f\u5458\u7ecf\u5e38\u9700\u8981\u663e\u793a\u7684\u5b8c\u6210\u4ee3\u7801\u79fb\u52a8\u3002<\/p><\/blockquote>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u624b\u52a8\u4f18\u5316\u7684\u51e0\u4e2a\u5efa\u8bae\uff1a\n<ul>\n<li>\u51cf\u5c11\u8fc7\u7a0b\u8c03\u7528\uff1a \u4e00\u4e2a\u7eaf\u7cb9\u4e3b\u4e49\u8005\u53ef\u80fd\u4f1a\u8bf4\u8fd9\u79cd\u53d8\u6362\u4e25\u91cd\u635f\u5bb3\u4e86\u7a0b\u5e8f\u7684\u6a21\u5757\u6027\u3002\u6bd4\u8f83\u5b9e\u9645\u7684\u7a0b\u5e8f\u5458\u4f1a\u4e89\u8fa9\u8bf4 \u8fd9\u79cd\u53d8\u6362\u662f\u83b7\u5f97\u9ad8\u6027\u80fd\u7ed3\u679c\u7684\u5fc5\u8981\u6b65\u9aa4\u3002\u5bf9\u4e8e\u6027\u80fd\u81f3\u5173\u91cd\u8981\u7684\u5e94\u7528\u6765\u8bf4\u3002\u4e3a\u4e86\u901f\u5ea6\uff0c\u7ecf\u5e38\u5fc5\u8981\u7684\u635f\u5bb3\u4e00\u4e9b\u529f\u80fd\u6a21\u5757\u6027\u548c\u62bd\u8c61\u6027\uff0c\u4e3a\u4e86\u9632\u6b62\u4ee5\u540e\u4fee\u6539\u4ee3\u7801\uff0c\u6dfb\u52a0\u4e00\u4e9b\u6587\u6863\u662f\u5f88\u660e\u667a\u7684\uff0c\u8bf4\u660e\u91c7\u7528\u4e86\u90a3\u4e9b\u53d8\u6362\u4ee5\u53ca\u5bfc\u81f4\u8fd9\u4e9b\u53d8\u6362\u7684\u5047\u8bbe\u3002<\/li>\n<li>\u6d88\u9664\u4e0d\u5fc5\u8981\u7684\u5b58\u50a8\u5668\u5f15\u7528<\/li>\n<li>\u5faa\u73af\u5c55\u5f00\uff1a \u4e00\u79cd\u7a0b\u5e8f\u53d8\u6362\uff0c \u901a\u8fc7\u589e\u52a0\u6bcf\u6b21\u8fed\u4ee3\u8ba1\u7b97\u7684\u5143\u7d20\u6570\u91cf\uff0c\u51cf\u5c11\u5faa\u73af\u7684\u8fed\u4ee3\u6b21\u6570\uff0c\u5faa\u73af\u5c55\u5f00\u80fd\u591f\u4ece\u4e24\u65b9\u9762\u6539\u5584\u7a0b\u5e8f\u7684\u6027\u80fd\u3002 1. \u51cf\u5c11 \u4e0d\u76f4\u63a5\u6709\u52a9\u4e8e\u7a0b\u5e8f\u7ed3\u679c \u7684\u64cd\u4f5c\u7684\u6570\u76ee\uff0c \u4f8b\u5982<strong>\u5faa\u73af\u7d22\u5f15\u8ba1\u7b97\u548c\u6761\u4ef6\u5206\u652f<\/strong>\u00a02. \u63d0\u4f9b\u4e86\u4e00\u4e9b\u65b9\u6cd5\uff0c\u6709\u52a9\u4e8e\u51cf\u5c11\u6574\u4e2a\u8ba1\u7b97\u4e2d\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\u6570\u91cf\u3002<\/li>\n<li>\u63d0\u9ad8\u5e76\u884c\u6027:\u00a0<strong>\u7a0b\u5e8f\u662f\u53d7\u8fd0\u7b97\u5355\u5143\u7684\u5ef6\u8fdf\u9650\u5236\u7684\u3002\u6267\u884c\u52a0\u6cd5\u548c\u4e58\u6cd5\u7684\u529f\u80fd\u5355\u5143 \u662f\u5b8c\u5168\u6d41\u6c34\u7ebf\u5316\u7684<\/strong>\u3002\u8fd9\u610f\u5473\u7740\u4ed6\u4eec\u53ef\u4ee5\u6bcf\u4e2a\u65f6\u949f\u5468\u671f\u5f00\u59cb\u4e00\u4e2a\u65b0\u64cd\u4f5c\u3002\u4ee3\u7801\u4e0d\u80fd\u5229\u7528\u8fd9\u79cd\u80fd\u529b\u3002\u5373\u4f7f\u662f\u4f7f\u7528\u5faa\u73af\u5c55\u5f00\u4e5f\u4e0d\u80fd\uff0c\u8fd9\u662f\u56e0\u4e3a\u6211\u4eec\u5c06\u79ef\u7d2f\u503c\u653e\u5728\u4e00\u4e2a\u5355\u72ec\u7684\u53d8\u91cfacc\u4e2d\uff0c\u5728\u524d\u9762\u7684\u8ba1\u7b97\u5b8c\u6210\u4e4b\u524d\uff0c\u90fd\u4e0d\u80fd\u8ba1\u7b97acc\u7684\u65b0\u503c\u3002\u6253\u7834\u8fd9\u79cd\u987a\u5e8f\u5173\u7cfb\u662f\u95ee\u9898\u7684\u5173\u952e\u30021\uff0c \u591a\u4e2a\u7d2f\u79ef\u53d8\u91cf\u3002 2. \u91cd\u65b0\u7ed3\u5408\u53d8\u6362\u3002\u51cf\u5c11\u8ba1\u7b97\u4e2d\u7684\u5173\u952e\u8def\u5f84\u4e0a\u7684\u64cd\u4f5c\u6570\u91cf\u3002\u901a\u8fc7\u66f4\u597d\u5730\u5229\u7528\u529f\u80fd\u5355\u5143\u7684\u6d41\u6c34\u7ebf\u80fd\u529b\u5f97\u5230\u66f4\u597d\u70b9\u6027\u80fd\uff0c\u5927\u591a\u6570\u7f16\u8bd1\u5668\u4e0d\u4f1a\u5bf9\u6d6e\u70b9\u6570\u505a\u91cd\u65b0\u7ed3\u5408\uff0c\u56e0\u4e3a\u8fd9\u4e9b\u8fd0\u7b97\u662f\u4e0d\u7b26\u5408\u7ed3\u5408\u5f8b\u7684\u3002\u901a\u5e38\u6211\u4eec\u53d1\u73b0\uff0c \u5faa\u73af\u5c55\u5f00\u548c\u5e76\u884c\u7684\u79ef\u7d2f\u5728\u591a\u4e2a\u503c\uff0c\u662f\u63d0\u9ad8\u7a0b\u5e8f\u6027\u80fd\u7684\u66f4\u53ef\u9760\u7684\u65b9\u6cd5\u3002<\/li>\n<li>\u5206\u652f\u9884\u6d4b\u548c\u9884\u6d4b\u9519\u8bef\u7684\u5904\u7f5a\uff1a \u4e66\u5199\u9002\u5408\u7528\u6761\u4ef6\u4f20\u9001\u5b9e\u73b0\u7684\u4ee3\u7801\u3002\u5206\u652f\u9884\u6d4b\u9519\u8bef\uff0c\u4f1a\u62db\u81f4\u4e25\u91cd\u7684\u5904\u7f5a<\/li>\n<li>\u5b58\u50a8\u5668\u6027\u80fd\uff1a \u53ea\u8003\u8651\u6240\u6709\u7684\u6570\u636e\u90fd\u5b58\u653e\u5728\u9ad8\u901f\u7f13\u5b58\u4e2d\u7684\u60c5\u51b5\u3002\uff08\u5728\u4e0b\u4e00\u7ae0\u8282\u4e2d\uff0c\u8fdb\u884c\u8be6\u7ec6\u7684\u4ecb\u7ecd\uff09<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ol start=\"6\">\n<li>\u5bf9\u5faa\u73af\u5c55\u5f00\u548c\u591a\u4e2a\u7d2f\u8ba1\u53d8\u91cf\uff0c\u91cd\u65b0\u7ed3\u5408\u53d8\u5316\u7684\u4ee3\u7801\u793a\u4f8b\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">void<\/span> <span class=\"token function\">combine4<\/span><span class=\"token punctuation\">(<\/span>vect_ptr v<span class=\"token punctuation\">,<\/span> data_t <span class=\"token operator\">*<\/span> dest<span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> length <span class=\"token operator\">=<\/span> <span class=\"token function\">vect_length<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t <span class=\"token operator\">*<\/span> data <span class=\"token operator\">=<\/span> <span class=\"token function\">get_vec_start<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t acc <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> length<span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc <span class=\"token operator\">=<\/span> acc <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token operator\">*<\/span> dest <span class=\"token operator\">=<\/span> acc\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"262\" data-height=\"441\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-d50ba196da19f6af.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/262\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-d50ba196da19f6af.png\" data-original-width=\"262\" data-original-height=\"441\" data-original-format=\"image\/png\" data-original-filesize=\"16029\" data-image-index=\"6\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">combine4.png<\/div>\n<\/div>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">void<\/span> <span class=\"token function\">combine5<\/span><span class=\"token punctuation\">(<\/span>vec_ptr v<span class=\"token punctuation\">,<\/span> data_r <span class=\"token operator\">*<\/span> dest<span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> length <span class=\"token operator\">=<\/span> <span class=\"token function\">vect_length<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> limit <span class=\"token operator\">=<\/span> length <span class=\"token operator\">-<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t <span class=\"token operator\">*<\/span> data <span class=\"token operator\">=<\/span> <span class=\"token function\">get_vec_start<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t acc <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> limit<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">+=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc <span class=\"token operator\">=<\/span> <span class=\"token punctuation\">(<\/span>acc <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token operator\">+<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span> length <span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc <span class=\"token operator\">=<\/span> acc <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token operator\">*<\/span> dest <span class=\"token operator\">=<\/span>  acc<span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"263\" data-height=\"519\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-d04c8fb6074db294.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/263\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-d04c8fb6074db294.png\" data-original-width=\"263\" data-original-height=\"519\" data-original-format=\"image\/png\" data-original-filesize=\"19534\" data-image-index=\"7\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">combine5.png<\/div>\n<\/div>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">void<\/span> <span class=\"token function\">combine6<\/span><span class=\"token punctuation\">(<\/span>vec_ptr v<span class=\"token punctuation\">,<\/span> data_r <span class=\"token operator\">*<\/span> dest<span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> length <span class=\"token operator\">=<\/span> <span class=\"token function\">vect_length<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> limit <span class=\"token operator\">=<\/span> length <span class=\"token operator\">-<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t <span class=\"token operator\">*<\/span> data <span class=\"token operator\">=<\/span> <span class=\"token function\">get_vec_start<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t acc0 <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t acc1 <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> limit<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">+=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc0 <span class=\"token operator\">=<\/span> acc0 <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n      acc1 <span class=\"token operator\">=<\/span> acc1 <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span> length <span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc <span class=\"token operator\">=<\/span> acc0 <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token operator\">*<\/span> dest <span class=\"token operator\">=<\/span>  acc0 <span class=\"token operator\">*<\/span> acc1<span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n\r\n<\/code><\/pre>\n<\/div>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"347\" data-height=\"458\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-ffbe39dd79a3f896.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/347\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-ffbe39dd79a3f896.png\" data-original-width=\"347\" data-original-height=\"458\" data-original-format=\"image\/png\" data-original-filesize=\"21797\" data-image-index=\"8\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">combine6.png<\/div>\n<\/div>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">void<\/span> <span class=\"token function\">combine7<\/span><span class=\"token punctuation\">(<\/span>vec_ptr v<span class=\"token punctuation\">,<\/span> data_r <span class=\"token operator\">*<\/span> dest<span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> i<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> length <span class=\"token operator\">=<\/span> <span class=\"token function\">vect_length<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">long<\/span> <span class=\"token keyword\">int<\/span> limit <span class=\"token operator\">=<\/span> length <span class=\"token operator\">-<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t <span class=\"token operator\">*<\/span> data <span class=\"token operator\">=<\/span> <span class=\"token function\">get_vec_start<\/span><span class=\"token punctuation\">(<\/span>v<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    data_t acc <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> limit<span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">+=<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc0 <span class=\"token operator\">=<\/span> acc <span class=\"token operator\">*<\/span> <span class=\"token punctuation\">(<\/span>data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i <span class=\"token operator\">+<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n\r\n    <span class=\"token keyword\">for<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">&lt;<\/span> length <span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n      acc <span class=\"token operator\">=<\/span> acc <span class=\"token operator\">*<\/span> data<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token operator\">*<\/span> dest <span class=\"token operator\">=<\/span>  acc<span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"292\" data-height=\"623\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-d27fb37945bdec87.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/292\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-d27fb37945bdec87.png\" data-original-width=\"292\" data-original-height=\"623\" data-original-format=\"image\/png\" data-original-filesize=\"19821\" data-image-index=\"9\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">combine7.png<\/div>\n<\/div>\n<\/li>\n<li>\u603b\u7ed3 \u4f18\u5316\u7a0b\u5e8f\u6548\u7387\u7684\u5c42\u6b21\u4ee5\u53ca\u65b9\u6cd5\uff1a\n<ul>\n<li>\u9ad8\u7ea7\u8bbe\u8ba1\uff1a \u9009\u62e9\u6070\u5f53\u7684\u7b97\u6cd5\u548c\u6570\u636e\u7ed3\u6784\uff0c\u907f\u514d\u4f7f\u7528\u90a3\u4e9b\u4f1a\u6e10\u8fdb\u7684\u4ea7\u751f\u7cdf\u7cd5\u7684\u6027\u80fd\u7684\u7b97\u6cd5\u548c\u7f16\u7801\u6280\u672f<\/li>\n<li>\u57fa\u672c\u7f16\u7801\u539f\u5219\uff1a\u907f\u514d\u9650\u5236\u4f18\u5316\u7684\u56e0\u7d20<br \/>\n1. \u6d88\u9664\u8fde\u7eed\u7684\u51fd\u6570\u8c03\u7528\u3002\u5728\u53ef\u80fd\u65f6\uff0c\u53ef\u4ee5\u727a\u7272\u6a21\u5757\u6027\u6765\u83b7\u5f97\u66f4\u5927\u7684\u6548\u7387<br \/>\n2. \u6d88\u9664\u4e0d\u5fc5\u8981\u7684\u5b58\u50a8\u5668\u5f15\u7528\uff1a \u5f15\u5165\u4e34\u65f6\u53d8\u91cf\u6765\u5b58\u50a8\u7ed3\u679c\uff0c\u53ea\u5728 \u6700\u540e\u7684\u65f6\u5019\uff0c\u5c06\u7ed3\u679c\u5b58\u653e\u5230\u6570\u7ec4\u53d8\u91cf\u3001\u5168\u5c40\u53d8\u91cf\u4e2d<\/li>\n<li>\u4f4e\u7ea7\u4f18\u5316<br \/>\n1. \u5c55\u5f00\u5faa\u73af<br \/>\n2. \u591a\u4e2a\u7d2f\u79ef\u53d8\u91cf \u548c\u91cd\u65b0\u7ed3\u5408\u7684\u6280\u672f\uff0c\u627e\u5230\u65b9\u6cd5\u63d0\u9ad8\u6307\u4ee4\u7ea7\u522b\u7684\u5e76\u884c\uff08\u5229\u7528\u6307\u4ee4\u7684\u6d41\u6c34\u7ebf\u5316\uff09<br \/>\n3. \u7528\u529f\u80fd\u7684\u98ce\u683c\u91cd\u65b0\u6761\u4ef6\u64cd\u4f5c\uff0c\u4f7f\u7f16\u8bd1\u5668\u91c7\u7528\u6761\u4ef6\u6570\u636e\u4f20\u9001\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ul>\n<li>profiling<br \/>\n<blockquote><p>\u8b66\u60d5\u5728\u4f18\u5316\u6548\u7387\u65f6\u5019\u5f15\u5165\u9519\u8bef\uff0c\u5f15\u5165\u65b0\u53d8\u91cf\uff0c\u6539\u53d8\u5faa\u73af\u8fb9\u754c \u4f7f\u5f97\u4ee3\u7801\u6574\u4f53\u4e0a\u66f4\u4e3a\u590d\u6742\uff0c\u5f88\u5bb9\u6613\u5bfc\u81f4\u9519\u8bef\uff0c\u9700\u8981\u6d4b\u8bd5\u6765\u4fdd\u8bc1\u4f18\u5316\u4ee3\u7801\u7684\u6b63\u786e\u6027\u3002<\/p><\/blockquote>\n<\/li>\n<\/ul>\n<h2>\u5b58\u50a8\u5668\u5c42\u6b21\u7ed3\u6784<\/h2>\n<ol>\n<li>\u8ba4\u8bc6\u5b58\u50a8\u5668\u7cfb\u7edf\n<ul>\n<li>\u5b58\u50a8\u5668\u7cfb\u7edf: \u662f\u4e00\u4e2a<strong>\u5177\u6709\u4e0d\u540c\u5bb9\u5668\u3001\u6210\u672c\u548c\u8bbf\u95ee\u65f6\u95f4<\/strong>\u7684\u5b58\u50a8\u8bbe\u5907\u7684<strong>\u5c42\u6b21\u7ed3\u6784<\/strong>\uff0cCPU\u5bc4\u5b58\u5668\u4fdd\u5b58\u6700\u5e38\u7528\u7684\u6570\u636e\uff0c\u9ad8\u901f\u7f13\u51b2\u533a\u4f5c\u4e3a\u4e00\u90e8\u5206\u5b58\u50a8\u5728\u76f8\u5bf9\u6162\u901f\u7684\u4e3b\u5b58\u50a8\u5668\u4e2d\u7684\u6570\u636e\u548c\u6307\u4ee4\u7684\u7f13\u51b2\u533a\uff0c \u4e3b\u5b58\u6682\u65f6\u5b58\u653e\u5b58\u50a8\u5728\u5bb9\u91cf\u8f83\u5927\u3001\u6162\u901f\u7684\u78c1\u76d8\u4e0a\u7684\u6570\u636e\uff0c\u800c\u78c1\u76d8\u5e38\u5e38\u4f5c\u4e3a\u5b58\u50a8\u5728\u901a\u8fc7\u7f51\u7edc\u8fde\u63a5\u7684\u5176\u4ed6\u673a\u5668\u7684\u78c1\u76d8\u4e0a\u7684\u6570\u636e\u7684\u7f13\u51b2\u533a\u3002<\/li>\n<li><strong>\u5b58\u50a8\u5668\u5c42\u6b21\u7ed3\u6784<\/strong>: \u5bf9\u5e94\u7528\u7a0b\u5e8f\u7684\u6027\u80fd\u6709\u7740\u5de8\u5927\u7684\u5f71\u54cd\uff0cCPU\u5bc4\u5b58\u5668\u4e2d\u7684\u6570\u636e\u57280\u4e2a\u5468\u671f\u53ef\u4ee5\u8bbf\u95ee\uff0c\u5728\u9ad8\u901f\u7f13\u51b2\u4e2d1-30\u4e2a\u5468\u671f\uff0c\u4e3b\u5b58\u4e2d50-200\u4e2a\u5468\u671f\uff0c\u5982\u679c\u5b58\u50a8\u5728\u78c1\u76d8\u4e0a\uff0c\u5927\u6982\u9700\u8981 \u51e0\u5343\u4e07\u4e2a\u5468\u671f\u3002<\/li>\n<li>\u5b58\u50a8\u5668\u5c42\u6b21\u7ed3\u6784\u662f\u53ef\u884c\u7684\uff0c\u4e00\u4e2a\u7f16\u5199\u826f\u597d\u7684\u7a0b\u5e8f\u503e\u5411\u4e8e\u9891\u7e41\u7684\u8bbf\u95ee\u67d0\u4e00\u4e2a\u5c42\u6b21\u4e0a\u7684\u5b58\u50a8\u8bbe\u5907\u3002\u5b58\u50a8\u5668\u5b9e\u73b0\u7684\u6574\u4f53\u6548\u679c\u662f\uff0c\u5176\u6210\u672c\u4e0e\u5c42\u6b21\u7ed3\u6784\u5e95\u5c42\u6700\u4fbf\u5b9c\u7684\u5b58\u50a8\u8bbe\u5907\u76f8\u5f53\u3002 \u4f46\u662f\u5374\u4ee5\u6700\u63a5\u8fd1\u4e8e\u5c42\u6b21\u7ed3\u6784\u9876\u90e8\u5b58\u50a8\u8bbe\u5907\u7684\u9ad8\u901f\u7387\u5411\u7a0b\u5e8f\u63d0\u4f9b\u6570\u636e\u3002<\/li>\n<li>\u5c40\u90e8\u6027\uff1a \u4e00\u4e2a\u8ba1\u7b97\u673a\u7a0b\u5e8f\u7684\u57fa\u672c\u5c5e\u6027\u3002\u5177\u6709\u826f\u597d\u5c40\u90e8\u6027\u7684\u7a0b\u5e8f\u503e\u5411\u4e8e\u4e00\u6b21\u53c8\u4e00\u6b21\u7684\u8bbf\u95ee\u76f8\u540c\u7684\u6570\u636e\u9879\u96c6\u5408\u3002\u6216\u662f\u503e\u5411\u4e8e\u8bbf\u95ee\u90bb\u8fd1\u7684\u6570\u636e\u9879\u96c6\u5408\u3002\u5177\u6709\u826f\u597d\u5c40\u90e8\u6027\u7684\u7a0b\u5e8f\u6bd4\u5c40\u90e8\u7a0b\u5e8f\u5dee\u7684\u7a0b\u5e8f\u66f4\u503e\u5411\u4e8e\u8bbf\u95ee\u66f4\u9ad8\u5c42\u6b21\u7684\u6570\u636e\u9879\uff0c\u5176\u8fd0\u884c\u901f\u5ea6\u4e5f\u53ef\u4ee5\u76f8\u5dee20\u500d\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5b58\u50a8\u6280\u672f\uff1a\n<ul>\n<li>\u9759\u6001RAM\uff1a SRAM\uff0c \u53cc\u7a33\u6001\u7279\u6027\u3002<\/li>\n<li>\u52a8\u6001RAM\uff1aDRAM\uff0c DRAM \u5b58\u50a8\u5668\u5355\u5143\u5bf9\u5e72\u6270\u975e\u5e38\u654f\u611f\uff0c\u66b4\u9732\u5728\u5149\u7ebf\u4e4b\u4e0b\u4f1a\u5bfc\u81f4\u7535\u5bb9\u7535\u538b\u7684\u6539\u53d8\uff0c\u6570\u636e\u7167\u76f8\u673a\u6444\u50cf\u673a\u4e2d\u7684\u4f20\u611f\u5668\u672c\u8d28\u5c31\u662fDRAM\uff0cDDR(2 \u4f4d), DDR2(4\u4f4d), DDR3(8\u4f4d)\u53cc\u500d\u6570\u636e\u901f\u7387\u540c\u6b65DRAM\uff0c (Double Data-rate Synchronous)<\/li>\n<li>\u603b\u7ebf\uff1a \u6570\u636e\u901a\u8fc7\u603b\u7ebf \u5171\u4eab\u7535\u5b50\u7535\u8def\u5728\u5904\u7406\u5668\u548cDRAM\u4e3b\u5b58\u4e4b\u95f4\u6765\u6765\u56de\u56de\uff0c\u6bcf\u6b21CPU\u548c\u4e3b\u5b58\u4e4b\u95f4\u7684\u6570\u636e\u4f20\u9001\u90fd\u662f\u901a\u8fc7\u4e00\u7cfb\u5217\u6b65\u9aa4\u6765\u5b8c\u6210\u7684\u3002\u8fd9\u4e9b\u6b65\u9aa4\u901a\u8fc7\u603b\u7ebf\u4e8b\u52a1\u3002\u603b\u7ebf\u662f\u4e00\u7ec4\u5e76\u884c\u7684\u5bfc\u7ebf\uff0c \u80fd\u643a\u5e26\u5730\u5740\u3001\u6570\u636e\u3001\u63a7\u5236\u4fe1\u53f7\u3002\u63a7\u5236\u603b\u7ebf\u643a\u5e26\u7684\u4fe1\u53f7\u4f1a\u540c\u6b65\u4e8b\u52a1\uff0c\u5e76\u533a\u5206\u5f53\u524d\u6b63\u5728\u88ab\u6267\u884c\u7684\u4e8b\u52a1\u7c7b\u578b\u3002\u4f8b\u5982\uff0c \u5f53\u524d\u5f97\u513f\u4e8b\u52a1\u662f\u4e3b\u5b58\uff0c\u8fd8\u662f\u78c1\u76d8\uff0c\u4ee5\u53ca\u5176\u4ed6\u78c1\u76d8\u8bbe\u5907\uff0c\u4fe1\u606f\u662f\u5730\u5740\uff0c\u8fd8\u662f\u6570\u636e\uff0c\u4e8b\u52a1\u662f\u8bfb\u8fd8\u662f\u5199\u3002<\/li>\n<li>\u603b\u7ebf\u63a5\u53e3 &#8212; I\/O\u6865 &#8212;&#8212; \u4e3b\u5b58\uff0c I\/O\u6865\u5c06\u7cfb\u7edf\u603b\u7ebf\u7684\u4fe1\u53f7\u7ffb\u8bd1\u6210\u5b58\u50a8\u5668\u603b\u7ebf\u7684\u7535\u5b50\u4fe1\u53f7\u3002<\/li>\n<li>\u78c1\u76d8\u5b58\u50a8\uff0c \u753b\u56fe<\/li>\n<li>\u56fa\u6001\u786c\u76d8\uff08Solid State Disk SSD\uff09 ssd \u7684\u6027\u80fd\u7279\u6027\uff0c \u987a\u5e8f\u8bfb\u548c\u5199\u6027\u80fd\u76f8\u5f53\uff0c\u987a\u5e8f\u2103\u6bd4\u987a\u5e8f\u5199\u7a0d\u5fae\u5feb\u4e00\u70b9\uff0c\u4f46\u662f\u6309\u7167\u968f\u673a\u987a\u5e8f\u8bbf\u95ee\u903b\u8f91\u5feb\u65f6\uff0c \u5199\u6bd4\u8bfb\u6162\u4e00\u4e2a\u6570\u91cf\u7ea7\u3002\u4e00\u4e2a\u95ea\u5b58\u662f\u7531B\u4e2a\u5757\u7684\u5e8f\u5217\u7ec4\u6210\u3002\u6bcf\u4e2a\u5757\u6709P\u9875\u7ec4\u6210\uff0c\u901a\u5e38\u9875\u7684\u5927\u5c0f\u662f512-4Kb\uff0c \u5757\u662f32-128\u9875\u7ec4\u6210\u7684\u3002\u6811\u8568\u662f\u4ee5\u9875\u5355\u4f4d\u8bfb\u5199\u7684\u3002\u53ea\u6709\u4e00\u9875\u6240\u5c5e\u7684\u771f\u4e2a\u5757\u88ab\u64e6\u9664\u4e4b\u540e\uff0c\u624d\u80fd\u5199\u8fd9\u4e00\u9875\uff0c\u4e0d\u8fc7\u4e00\u65e6\u4e00\u4e2a\u5757\u88ab\u64e6\u9664\u4e86\uff0c\u5757\u4e2d\u6bcf\u4e00\u4e2a\u90fd\u53ef\u4ee5\u4e0d\u9700\u8981\u5728\u8fdb\u884c\u64e6\u9664\u5c31\u53ef\u4ee5\u5199\u4e86\uff0c\u5927\u7ea6\u5728100000\u6b21\u91cd\u590d\u5199\u4e4b\u540e\uff0c\u5757\u5c31\u4f1a\u635f\u574f\u3002\u901f\u8bb0\u5199\u6162\u7684\u539f\u56e0\uff1a 1. \u64e6\u51fa\u5757\u9700\u8981\u76f8\u5bf9\u8f83\u957f\u7684\u65f6\u95f4\uff0c1ms\u7ea7\u522b\uff0c\u6bd4\u8bbf\u95ee\u9875\u6240\u9700\u65f6\u95f4\u8981\u9ad8\u51fa\u4e00\u4e2a\u6570\u91cf\u7ea7\uff0c2. \u5982\u679c\u5199\u64cd\u4f5c\u8bd5\u56fe\u4fee\u6539\u4e00\u4e2a\u5305\u542b\u5df2\u7ecf\u6709\u6570\u636e\u7684\u9875\uff0c\u90a3\u4e48\u8fd9\u4e2a\u5757\u4e2d\u6240\u6709\u6709\u7528\u6570\u636e\u7684\u9875\u90fd\u5fc5\u987b\u62f7\u8d1d\u5230\u4e00\u4e2a\u65b0\u5757\uff0c\u624d\u80fd\u8fdb\u884c\u5bf9\u9875p\u7684\u5199\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5c40\u90e8\u6027\uff1a<br \/>\n\u4e00\u4e2a\u7f16\u5199\u826f\u597d\u7684\u7a0b\u5e8f\u5177\u6709\u826f\u597d\u7684\u5c40\u90e8\u6027\uff0c \u4ed6\u503e\u5411\u4e8e\u5f15\u7528\u90bb\u8fd1\u5176\u4ed6\u6700\u8fd1\u5f15\u7528\u8fc7\u7684\u6570\u636e\u9879\u7684\u6570\u636e\uff0c\u6216\u8005\u6700\u8fd1\u5e94\u7528\u8fc7\u7684\u6570\u636e\u9879\uff0c\u8fd9\u79cd\u503e\u5411\u6027\u88ab\u79f0\u4e3a\u5c40\u90e8\u6027\u539f\u7406\u30021. \u65f6\u95f4\u5c40\u90e8\u6027\uff0c 2. \u7a7a\u95f4\u5c40\u90e8\u6027<\/p>\n<ul>\n<li>\u65f6\u95f4\u5c40\u90e8\u6027\uff1a \u88ab\u5f15\u7528\u4e00\u6b21\u7684\u5b58\u50a8\u5668\u4f4d\u7f6e\u5f88\u53ef\u80fd\u5728\u4e0d\u8fdc\u7684\u5c06\u6765\u518d\u88ab\u591a\u6b21\u5f15\u7528\u3002<\/li>\n<li>\u7a7a\u95f4\u5c40\u90e8\u6027\uff1a \u4e00\u4e2a\u5b58\u50a8\u5668\u4f4d\u7f6e\u88ab\u5f15\u7528\u4e86\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5f88\u53ef\u80fd\u5728\u4e0d\u8fdc\u7684\u5c06\u6765\u5f15\u7528\u9644\u8fd1\u7684\u4e00\u4e2a\u5b58\u50a8\u4f4d\u7f6e<\/li>\n<\/ul>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">int<\/span> <span class=\"token function\">sumec<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">int<\/span> v<span class=\"token punctuation\">[<\/span>N<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">int<\/span>  i<span class=\"token punctuation\">,<\/span> sum <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">for<\/span><span class=\"token punctuation\">(<\/span>i <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span> <span class=\"token punctuation\">;<\/span> i <span class=\"token operator\">&lt;<\/span> N <span class=\"token punctuation\">;<\/span> i<span class=\"token operator\">++<\/span><span class=\"token punctuation\">)<\/span>\r\n    <span class=\"token punctuation\">{<\/span>\r\n        sum <span class=\"token operator\">+=<\/span> v<span class=\"token punctuation\">[<\/span>i<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token punctuation\">}<\/span>\r\n    <span class=\"token keyword\">return<\/span> sum<span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<\/li>\n<\/ol>\n<p>\u7a7a\u95f4\u5c40\u90e8\u6027\u5f88\u597d\uff0c \u65f6\u95f4\u5c40\u90e8\u6027\u5f88\u5dee, \u5728\u4e00\u4e2a\u8fde\u7eed\u7684\u5411\u91cf\u6a21\u5f0f\u4e2d\uff0c\u6bcf\u9694k\u4e2a\u5143\u7d20\u8fdb\u884c\u8bbf\u95ee\uff0c \u5c31\u88ab\u79f0\u4e3a\u6b65\u957f\u4e3ak\u7684\u5f15\u7528\u6a21\u5f0f\uff0c\u4e00\u822c\u800c\u8a00\uff0c\u968f\u7740\u6b65\u957f\u7684\u589e\u52a0\uff0c \u7a7a\u95f4\u5c40\u90e8\u6027\u4e0b\u964d\u3002<\/p>\n<ol start=\"3\">\n<li>\u5b58\u50a8\u5668\u5c42\u6b21\u7ed3\u6784<br \/>\n\u56fe\u7247<\/p>\n<ul>\n<li>\u7f13\u5b58\u547d\u4e2d\uff1a<\/li>\n<li>\u7f13\u5b58\u4e0d\u547d\u4e2d\uff1a\n<ul>\n<li>\u7b2ck\u5c42\u7684\u7f13\u5b58\u4ece\u7b2ck+1\u7f13\u5b58\u4e2d \u53d6\u51fa\u5305\u542b\u7684\u90a3\u4e2a\u5757\uff0c\u5982\u679ck\u5c42\u7684\u7f13\u5b58\u5df2\u7ecf\u6ee1\u4e86\u7684\u8bdd\uff0c\u5c31\u9700\u8981\u8986\u76d6\u73b0\u5b58\u7684\u4e00\u4e2a\u5757\u3002 \u6210\u4e3a\u66ff\u6362\u6216\u9a71\u9010\u8fd9\u4e2a\u5757\uff0c\u500d\u9a71\u9010\u7684\u8fd9\u4e2a\u5757\u513f\uff0c\u79f0\u4e3a \u727a\u7272\u5757\uff0c\u51b3\u5b9a\u8be5\u66ff\u6362\u90a3\u4e2a\u5757\u662f\u6709\u7f13\u5b58\u7684\u66ff\u6362\u7b56\u7565\u6765\u63a7\u5236\u7684\u3002\u6bd4\u5982\u968f\u673a\u66ff\u6362\u7b56\u7565\u548c\u6700\u8fd1\u6700\u5c11\u88ab\u4f7f\u7528\u7684\uff08LRU\uff09\u66ff\u6362\u7b56\u7565<\/li>\n<li>\u7f13\u5b58\u4e0d\u547d\u4e2d\u7684\u79cd\u7c7b\uff1a \u51b7\u7f13\u5b58\uff1a \u4e00\u4e2a\u7a7a\u7684\u7f13\u5b58\uff0c\u4ed6\u662f\u77ed\u6682\u7684\u4e8b\u4ef6\uff0c\u4e0d\u4f1a\u5728\u53cd\u590d\u8bbf\u95ee\u5b58\u50a8\u5668\u662f\u7684\u7f13\u5b58\u6696\u8eab\u4e4b\u540e\u7684\u7a33\u5b9a\u72b6\u6001\u4e2d\u51fa\u73b0\u30022. \u53ea\u8981\u53d1\u751f\u4e86\u4e0d\u547d\u4e2d\uff0ck\u5c42\u7684\u7f13\u5b58\u5c31\u5fc5\u987b\u6267\u884c\u67d0\u4e2a\u653e\u7f6e\u7b56\u7565\uff0c\u786e\u5b9a\u5b83\u4ece\u7b2ck+1\u5c42\u4e2d\u7684\u6570\u636e\u653e\u5728\u54ea\u91cc\u3002<\/li>\n<li>\u51b2\u7a81\u4e0d\u547d\u4e2d\uff1a \u88ab\u5f15\u7528\u7684\u6570\u636e\u5bf9\u8c61\uff0c\u6620\u5c04\u5230\u540c\u4e00\u4e2a\u7f13\u5b58\u5757\uff0c\u7f13\u5b58\u4f1a\u4e00\u76f4\u4e0d\u547d\u4e2d<\/li>\n<li>\u5bb9\u91cf\u4e0d\u547d\u4e2d\uff1a \u4e00\u4e2a\u5d4c\u5957\u7684\u5faa\u73af\u53ef\u80fd\u4f1a\u53cd\u590d\u7684\u8bbf\u95ee\u540c\u4e00\u4e2a\u6570\u7ec4\u7684\u5143\u7d20\uff0c\u8fd9\u4e2a\u5757\u7684\u96c6\u5408\u79f0\u4e3a\u8fd9\u4e2a\u9636\u6bb5\u7684\u5de5\u4f5c\u96c6\uff0c\u5f53\u5de5\u4f5c\u96c6\u7684\u5927\u5c0f\u8d85\u8fc7\u4e86\u7f13\u5b58\u7684\u5927\u5c0f\uff0c\u5c31\u4f1a\u53d1\u751f \u5bb9\u91cf\u4e0d\u547d\u4e2d\u7684<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u94fe\u63a5<\/h2>\n<p>TODO<\/p>\n<p>\u94fe\u63a5 \u662f\u5c06\u5404\u79cd\u4ee3\u7801\u548c\u6570\u636e\u90e8\u5206\u6536\u96c6\u8d77\u6765\u5e76\u7ec4\u5408\u6210\u4e3a\u4e00\u4e2a\u5355\u4e00\u6587\u4ef6\u7684\u8fc7\u7a0b\uff0c\u94fe\u63a5\u53ef\u4ee5\u6267\u884c\u4e8e \u7f16\u8bd1\u65f6\uff08compile time \u4e5f\u5c31\u662f\u5728\u6e90\u4ee3\u7801\u88ab\u7ffb\u8bd1\u6210\u673a\u5668\u4ee3\u7801\u65f6\uff09\u4e5f\u53ef\u4ee5\u6267\u884c\u4e8e\u52a0\u8f7d\u65f6\uff08load time\u5728\u7a0b\u5e8f\u500d\u52a0\u8f7d\u5668\u52a0\u8f7d\u5230\u5b58\u50a8\u5668\u5e76\u8fd0\u884c\u65f6\uff09\u751a\u81f3\u6267\u884c\u4e8e\u8fd0\u884c\u65f6\uff08run time \u6709\u5e94\u7528\u7a0b\u5e8f\u6765\u6267\u884c\uff09<br \/>\n\u94fe\u63a5\u5668 \u5728\u8f6f\u4ef6\u5f00\u53d1\u4e2d\uff0c\u626e\u6f14\u8005\u4e00\u4e2a\u5173\u952e\u7684\u89d2\u8272\uff0c\u56e0\u4e3a\u4ed6\u4eec\u4f7f\u5f97\u7684\u5206\u79bb\u7f16\u8bd1 \u6210\u4e3a\u53ef\u80fd\uff0c\u6211\u4eec\u4e0d\u7528\u5c06\u4e00\u4e2a\u5927\u578b\u7684\u5e94\u7528\u7a0b\u5e8f\u7ec4\u7ec7\u4e3a\u4e00\u4e2a\u5de8\u5927\u7684\u6e90\u6587\u4ef6\uff0c\u800c\u662f\u53ef\u4ee5\u628a\u5979\u5206\u89e3\u4e3a\u66f4\u5c0f\uff0c\u66f4\u597d\u7ba1\u7406\u7684\u6a21\u5757\uff0c\u53ef\u4ee5\u72ec\u7acb\u7684\u4fee\u6539\u548c\u7f16\u8bd1\u8fd9\u4e9b\u6a21\u5757\u3002\u5f53\u6211\u4eec\u4fee\u6539\u4e00\u4e2a\u6587\u4ef6\u65f6\u5019\uff0c\u7b80\u5355\u7684\u7f16\u8bd1\u5979\uff0c\u5e76\u91cd\u65b0\u8fde\u63a5\u5e94\u7528\uff0c\u800c\u4e0d\u5fc5\u91cd\u65b0\u7f16\u8bd1\u6574\u4e2a\u9879\u76ee\u3002<\/p>\n<p>\u94fe\u63a5\u5668\u4ea7\u751f\u7684\u53ef\u6267\u884c\u6587\u4ef6\u5728\u91cd\u8981\u7684\u7cfb\u7edf\u529f\u80fd\u4e2d\u626e\u6f14\u8005\u91cd\u8981\u7684\u89d2\u8272\uff0c\u6bd4\u5982 \u52a0\u8f7d\u548c\u8fd0\u884c\u7a0b\u5e8f\uff0c\u865a\u62df\u5b58\u50a8\u5668\uff0c\u5206\u9875\uff0c\u548c\u5b58\u50a8\u5668\u6620\u5c04\u3002\u968f\u7740\u5171\u4eab\u5e93\u548c\u52a8\u6001\u8fde\u63a5\u5728 \u64cd\u4f5c\u7cfb\u7edf\u4e2d\u7684\u91cd\u8981\u6027\u52a0\u5f3a\uff0c\u94fe\u63a5\u6210\u4e3a\u4e00\u4e2a\u590d\u6742\u7684\u8fc7\u7a0b\u3002linux elf\u76ee\u6807\u6587\u4ef6\u683c\u5f0f\u3002<\/p>\n<h2>\u5f02\u5e38\u63a7\u5236\u6d41<\/h2>\n<blockquote><p>\u5f02\u5e38\u63a7\u5236\u6d41(ExceptI\/Onal Control Flow ECF): \u5f02\u5e38\u63a7\u5236\u6d41\u53d1\u751f\u5728\u8ba1\u7b97\u673a\u7684\u5404\u4e2a\u5c42\u6b21\u3002<br \/>\n\u786c\u4ef6\u5c42: \u786c\u4ef6\u68c0\u6d4b\u7684\u4e8b\u60c5\u4f1a\u89e6\u53d1\u63a7\u5236\u7a81\u7136\u8f6c\u79fb\u5230\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f<br \/>\n\u64cd\u4f5c\u7cfb\u7edf\u5c42: \u5185\u6838\u901a\u8fc7 \u4e0a\u4e0b\u6587\u5207\u6362 \u5c06\u63a7\u5236\u4ece\u4e00\u4e2a\u7528\u6237\u8fdb\u7a0b\u8f6c\u79fb\u5230\u53e6\u4e00\u4e2a\u7528\u6237\u8fdb\u7a0b<br \/>\n\u5e94\u7528\u5c42\u9762: \u4e00\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u901a\u8fc7\u53d1\u9001\u4fe1\u53f7\u5230\u53e6\u4e00\u4e2a\u8fdb\u7a0b\uff0c \u800c\u63a5\u53d7\u8005\u5c06\u8f6c\u79fb\u5230\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f<\/p><\/blockquote>\n<ol>\n<li>\u5f02\u5e38\u63a7\u5236\u6d41\uff1a\n<ul>\n<li>\u662f\u64cd\u4f5c\u7cfb\u7edf\u7528\u6765\u5b9e\u73b0I\/O\u3001\u8fdb\u7a0b\u3001\u548c\u865a\u62df\u5b58\u50a8\u5668\u7684\u57fa\u672c\u673a\u5236<\/li>\n<li>\u662f\u5e94\u7528\u7a0b\u5e8f\u4e0e\u64cd\u4f5c\u7cfb\u7edf\u4ea4\u4e92\u7684\u65b9\u5f0f\uff1a \u5e94\u7528\u7a0b\u5e8f\u901a\u8fc7\u4e00\u4e2a\u9677\u9631\uff08trap\uff09\u6216 \u7cfb\u7edf\u8c03\u7528(system call) \u7684\u5f62\u5f0f\uff0c\u5411\u64cd\u4f5c\u7cfb\u7edf\u8bf7\u6c42\u670d\u52a1\u3002<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u4e3a\u7a0b\u5e8f\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684ECF\u673a\u5236\uff0c\u521b\u5efa\u8fdb\u7a0b\u3001\u7b49\u5f85\u8fdb\u7a0b\u3001\u901a\u77e5\u5176\u4ed6\u8fdb\u7a0b\u7cfb\u7edf\u4e2d\u7684\u5f02\u5e38\u4e8b\u4ef6\u7b49<\/li>\n<li>ECF\u662f\u8ba1\u7b97\u673a\u5b9e\u73b0\u5e76\u53d1\u7684\u57fa\u672c\u673a\u5236<\/li>\n<li>\u63d0\u4f9b\u7a0b\u5e8f\u65b9\u9762\u7684\u5f02\u5e38\u673a\u5236\uff0ctry\uff0c catch\u3002 setjmp, longjmp\uff09<\/li>\n<\/ul>\n<\/li>\n<li>\u5f02\u5e38\uff1a\n<ul>\n<li>\u5f02\u5e38\u662f\u5f02\u5e38\u63a7\u5236\u6d41\u7684\u4e00\u79cd\u5f62\u5f0f\u3002<\/li>\n<li>\u5b9e\u73b0\uff1a \u786c\u4ef6 + \u64cd\u4f5c\u7cfb\u7edf\uff0c \u968f\u7740\u7cfb\u7edf\u4e0d\u540c\u800c\u4e0d\u540c\uff0c\u4f46\u662f\u57fa\u672c\u601d\u60f3\u76f8\u540c\uff0c<\/li>\n<li>\u63a7\u5236\u6d41\u4e2d\u7684\u7a81\u53d8\uff0c \u7528\u6765\u54cd\u5e94\u5904\u7406\u5668\u72b6\u6001\u4e2d\u7684\u67d0\u4e9b\u53d8\u5316\u3002\u4e5f\u79f0\u4e3a\u4e8b\u4ef6\uff0c \u6bd4\u5982\uff1a \u53d1\u751f\u865a\u62df\u5b58\u50a8\u5668\u7f3a\u9875\uff0c\u7b97\u6570\u6ea2\u51fa\uff0c I\/O\u8bf7\u6c42\u5b8c\u6210\u7b49\u3002<\/li>\n<li>\u4e8b\u4ef6\u653e\u751f\u65f6\u5019\uff0c \u5904\u7406\u5668\u901a\u8fc7 \u5f02\u5e38\u8868(exceptI\/On table\uff0c \u95f4\u63a5\u8df3\u8f6c\u8868) \u6765\u8c03\u7528 \u64cd\u4f5c\u7cfb\u7edf\u5b50\u7a0b\u5e8f&#8212;\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f\uff08\u4e00\u4e2a\u4e13\u95e8\u8bbe\u8ba1\u6765\u5904\u7406\u8fd9\u79cd\u4e8b\u4ef6\u7684\u64cd\u4f5c\u7cfb\u7edf\u5b50\u7a0b\u5e8f\uff09<\/li>\n<li>\u5f02\u5e38\u5904\u7406\u7c7b\u4f3c\u4e8e\u51fd\u6570\u8c03\u7528\uff0c \u4f46\u662f\u4e0d\u540c\u4e8e\u51fd\u6570\u8c03\u7528\uff1a<br \/>\n1. \u5f02\u5e38\u5904\u7406\u7a0b\u5e8f\u8fd0\u884c\u5728\u5185\u6838\u6a21\u5f0f\u4e0b\uff0c\u8fd9\u610f\u5473\u7740\u4ed6\u4eec\u5bf9\u6240\u6709\u7684\u7cfb\u7edf\u8d44\u6e90\u90fd\u6709\u5b8c\u5168\u7684\u8bbf\u95ee\u6743\u9650<br \/>\n2. \u5982\u679c\u63a7\u5236\u4ece\u4e00\u4e2a\u7528\u6237\u6001\u8f6c\u5230\u5185\u6838\u6001\uff0c\u90a3\u4e48\u6240\u6709\u7684\u9879\u76ee\u90fd\u9700\u8981\u538b\u5230\u5185\u6838\u6808\u4e2d<br \/>\n3. \u8fc7\u7a0b\u8c03\u7528\uff0c \u5728\u8df3\u8f6c\u5230\u7a0b\u5e8f\u4e4b\u524d\uff0c\u5904\u7406\u5668\u5c06\u8fd4\u56de\u5730\u5740\u538b\u5012\u6808\u4e2d\uff0c \u5f02\u5e38\uff1a\u8fd4\u56de\u5730\u5740\u8981\u4e48\u662f\u5f53\u524d\u6307\u4ee4\uff0c\u8981\u4e48\u662f \u4e0b\u4e00\u53f0\u6307\u4ee4\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5f02\u5e38\u7c7b\u578b\uff1a \u4e2d\u65ad\uff08interrupt\uff09, \u9677\u9631\uff08trap\uff09\uff0c \u6545\u969c\uff08fault\uff09\u7ec8\u6b62\uff08abort\uff09\n<ul>\n<li>\u4e2d\u65ad\uff1a \u6765\u81ea\u5904\u7406\u5668\u5916\u90e8\u7684I\/O\u8bbe\u5907\u7684\u4fe1\u53f7\u7684\u7ed3\u679c\uff0c \u5f02\u6b65\uff0c \u786c\u4ef6\u4e2d\u65ad\u7684\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f \u901a\u5e38\u79f0\u4e3a \u4e2d\u65ad\u5904\u7406\u7a0b\u5e8f\u3002<\/li>\n<li>\u9677\u9631\uff1a \u6709\u610f\u7684\u5f02\u5e38\uff0c\u662f\u6267\u884c\u4e00\u6761\u6307\u4ee4\u7684\u7ed3\u679c\u3002\u9677\u9631\u7684\u91cd\u8981\u7528\u9014\u662f\uff1a\u00a0<strong>\u5728\u7528\u6237\u7a0b\u5e8f\u548c\u5185\u6838\u4e4b\u95f4\u63d0\u4f9b\u4e00\u4e2a\u50cf\u8fc7\u7a0b\u4e00\u6837\u7684\u63a5\u53e3\uff0c\u53eb\u7cfb\u7edf\u8c03\u7528<\/strong>\u3002 \u4ece\u7a0b\u5e8f\u5458\u7684\u89d2\u5ea6\u6765\u770b\uff0c \u7cfb\u7edf\u8c03\u7528\u548c\u51fd\u6570\u8c03\u7528\u662f\u4e00\u6837\u7684\uff0c\u7136\u800c\u5176\u4e2d\u7684\u5185\u90e8\u5b9e\u73b0\u662f\u975e\u5e38\u4e0d\u540c\u7684\u3002 \u666e\u901a\u7684\u51fd\u6570\u8fd0\u884c\u5728\u7528\u6237\u6a21\u5f0f\u4e2d\uff0c \u7528\u6237\u6a21\u5f0f\u9650\u5236\u4e86\u51fd\u6570\u53ef\u4ee5\u6267\u884c\u7684\u6307\u4ee4\u7684\u7c7b\u578b<\/li>\n<li>\u6545\u969c\uff1a \u7531\u9519\u8bef\u5f15\u8d77\u7684\uff0c\u6545\u969c\u53d1\u751f\u65f6\uff0c \u5904\u7406\u5668\u5c06\u63a7\u5236\u8f6c\u79fb\u5230\u6545\u969c\u5904\u7406\u7a0b\u5e8f\uff0c\u5982\u679c\u5904\u7406\u7a0b\u5e8f\u80fd\u591f\u5904\u7406\u4fee\u6b63\u9519\u8bef\uff0c\u4ed6\u5c06\u63a7\u5236\u6743\u8f6c\u79fb\u5230\u5f15\u8d77\u6545\u969c\u7684\u6307\u4ee4\uff0c\u4ece\u800c\u91cd\u65b0\u6267\u884c\u3002\u5426\u5219\uff0c\u5904\u7406\u7a0b\u5e8f\u8fd4\u56de\u5230\u5185\u6838\u4e2d\u7684abort\u51fd\u6570\uff0c\u4ece\u800c\u7ec8\u6b62\u7a0b\u5e8f\u3002 \u4e00\u4e2a\u7ecf\u5178\u7684\u6545\u969c\u793a\u4f8b\u662f\u7f3a\u9875\u5f02\u5e38\uff0c \u6307\u4ee4\u5f15\u7528\u7684\u4e00\u4e2a\u865a\u62df\u5730\u5740\uff0c\u4e0e\u8be5\u865a\u62df\u5730\u5740\u5173\u8054\u7684\u7269\u7406\u9875\u9762\u4e0d\u5728 \u5b58\u50a8\u5668\u4e2d\uff0c\u4ece\u800c\u53d1\u751f\u6545\u969c\u3002\u7f3a\u9875\u5904\u7406\u7a0b\u5e8f \u4ece\u78c1\u76d8\u52a0\u8f7d\u5230\u5b58\u50a8\u5668\u4e2d\u4e4b\u540e\uff0c\u5c06\u63a7\u5236\u6743\u8f6c\u4ea4\u5230 \u7a0b\u5e8f\u6307\u4ee4\uff0c \u7a0b\u5e8f\u6267\u884c\u518d\u6b21\u6267\u884c\uff0c\u5c31\u4e0d\u4f1a\u53d1\u751f\u6545\u969c\u4e86\u3002<\/li>\n<li>\u7ec8\u6b62\uff1a \u662f\u4e0d\u53ef\u4ee5\u4fee\u590d\u7684\u81f4\u547d\u9519\u8bef\u9020\u6210\u7684\u7ed3\u679c\uff0c \u901a\u5e38\u662f\u4e00\u4e9b\u786c\u4ef6\u9519\u8bef\u3002\u7ec8\u6b62\u5904\u7406\u7a0b\u5e8f\uff0c\u4e0d\u4f1a\u5c06\u63a7\u5236\u8fd4\u56de\u5230\u5e94\u7528\u7a0b\u5e8f\uff0c\u800c\u662f\u7ec8\u6b62\u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<li>linux \u4e2d\u7684\u5f02\u5e38\u793a\u4f8b\uff1a<\/li>\n<\/ul>\n<ul>\n<li>linux \u6545\u969c\u548c\u7ec8\u6b62\uff1a<br \/>\n<table>\n<thead>\n<tr>\n<th>\u5f02\u5e38\u53f7<\/th>\n<th>\u63cf\u8ff0<\/th>\n<th>\u5f02\u5e38\u7c7b\u578b<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>0<\/td>\n<td>\u9664\u6cd5\u9519\u8bef<\/td>\n<td>\u6545\u969c<\/td>\n<\/tr>\n<tr>\n<td>13<\/td>\n<td>\u4e00\u822c\u4fdd\u62a4\u6545\u969c<\/td>\n<td>\u6545\u969c<\/td>\n<\/tr>\n<tr>\n<td>14<\/td>\n<td>\u7f3a\u9875<\/td>\n<td>\u6545\u969c<\/td>\n<\/tr>\n<tr>\n<td>18<\/td>\n<td>\u673a\u5668\u68c0\u67e5<\/td>\n<td>\u7ec8\u6b62<\/td>\n<\/tr>\n<tr>\n<td>32-127<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u5b9a\u4e49\u7684\u5f02\u5e38<\/td>\n<td>\u4e2d\u65ad\u6216\u9677\u9631<\/td>\n<\/tr>\n<tr>\n<td>128<\/td>\n<td>\u7cfb\u7edf\u8c03\u7528<\/td>\n<td>\u9677\u9631<\/td>\n<\/tr>\n<tr>\n<td>129-255<\/td>\n<td>\u64cd\u4f5c\u7cfb\u7edf\u5b9a\u4e49\u7684\u5f02\u5e38<\/td>\n<td>\u4e2d\u65ad\u6216\u9677\u9631<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<li>linux \u7cfb\u7edf\u8c03\u7528\uff1a \u6bcf\u4e2a\u7cfb\u7edf\u8c03\u7528\u90fd\u6709\u4e00\u4e2a\u552f\u4e00\u7684\u6574\u6570\u53f7\uff0c \u5bf9\u5e94\u4e8e\u4e00\u4e2a\u5230\u5185\u6838\u4e2d\u7684\u8df3\u8f6c\u8868\u7684\u504f\u79fb\u91cf\u3002<\/li>\n<li>\u7cfb\u7edf\u8c03\u7528\u662f\u901a\u8fc7 \u6307\u4ee4 int 0x80 \u8c03\u7528\u7684\uff0c \u53c2\u6570\u4f20\u9012\u90fd\u662f\u901a\u8fc7\u5bc4\u5b58\u5668\u800c\u4e0d\u662f\u6808\u4f20\u9012\u7684\u3002 %eax\u4e3a\u7cfb\u7edf\u8c03\u7528\u53f7\uff0c \u5bc4\u5b58\u5668%ebx, %ecx &#8230;\u4e3a\u8c03\u7528\u53c2\u6570\uff0c \u6807\u51c6C\u51fd\u6570\u5e93\u63d0\u4f9b\u4e86\u5305\u88c5\u51fd\u6570\uff0c \u8fd9\u4e9b\u5305\u88c5\u51fd\u6570\u5c06\u53c2\u6570\u6253\u5305\u5728\u4e00\u8d77\uff0c \u4ee5\u9002\u5f53\u7cfb\u7edf\u8c03\u7528\u53f7\u9677\u5165\u5185\u6838\u3002\u7136\u540e\u5c06\u7cfb\u7edf\u8c03\u7528\u7684\u8fd4\u56de\u72b6\u6001\u4f20\u9012\u7ed9\u8c03\u7528\u51fd\u6570\uff0c\u5b8c\u6210\u5305\u88c5\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u8fdb\u7a0b\uff1a\n<ul>\n<li><strong>\u4e00\u4e2a\u6267\u884c\u4e2d\u7684\u7a0b\u5e8f\u7684\u793a\u4f8b\u3002 \u7cfb\u7edf\u4e2d\u7684\u6bcf\u4e2a\u7a0b\u5e8f\u90fd\u662f\u8fd0\u884c\u5728\u67d0\u4e2a\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u7684\u3002\u4e0a\u4e0b\u6587\u662f\u7a0b\u5e8f\u6b63\u786e\u8fd0\u884c\u6240\u9700\u8981\u7684\u72b6\u6001\u7684\u7ec4\u6210<\/strong>\u3002\u5305\u62ec\uff0c \u7a0b\u5e8f\u4ee3\u7801\u548c\u6570\u636e\uff0c\u6808\uff0c\u901a\u7528\u5bc4\u5b58\u5668\u7684\u5185\u5bb9\uff0c\u7a0b\u5e8f\u8ba1\u6570\u5668\u7b49<\/li>\n<li><strong>\u5f02\u5e38\u662f\u5141\u8bb8 \u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u8fdb\u7a0b\u7684\u6982\u5ff5\u6240\u9700\u8981\u7684\u57fa\u672c\u6784\u9020\u5757<\/strong>\u3002<\/li>\n<li>\u5728\u5916\u58f3\u7a0b\u5e8f\u4e2d\u8f93\u5165\u53ef\u6267\u884c\u76ee\u6807\u6587\u4ef6\u7684\u540d\u5b57\uff0c \u5916\u58f3\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u8fdb\u7a0b\uff0c\u7136\u540e\u5728\u8fd9\u4e2a\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d \u8fd0\u884c\u8fd9\u4e2a\u53ef\u6267\u884c\u76ee\u6807\u6587\u4ef6\u3002<\/li>\n<li>\u8fdb\u7a0b\u63d0\u4f9b\u7684\u5173\u952e\u62bd\u8c61\u6709\uff1a<br \/>\n1. \u4e00\u4e2a\u72ec\u7acb\u7684\u903b\u8f91\u63a7\u5236\u6d41\uff0c\u63d0\u4f9b\u4e00\u4e2a\u72ec\u5360\u4f7f\u7528\u5904\u7406\u5668\u7684\u5047\u8c61<br \/>\n2. \u4e00\u4e2a\u79c1\u6709\u7684\u5730\u5740\u7a7a\u95f4\uff0c\u63d0\u4f9b\u4e00\u4e2a\u72ec\u5360\u5b58\u50a8\u7cfb\u7edf\u7684\u5047\u8c61<\/li>\n<li>\u5e76\u53d1\u4e0e\u5e76\u884c:<br \/>\n1. \u903b\u8f91\u63a7\u5236\u6d41\uff1a\u56e0\u4e3a\u8fdb\u7a0b\u63d0\u4f9b\u6bcf\u4e2a\u7a0b\u5e8f\u5355\u72ec\u4f7f\u7528\u5904\u7406\u5668\u7684\u5047\u8c61\u3002\u6240\u4ee5\u7a0b\u5e8f\u8ba1\u6570\u5668\uff08PC\uff09\u7684\u503c\u7684\u5e8f\u5217\u53eb\u505a \u903b\u8f91\u63a7\u5236\u6d41<br \/>\n2. \u5e76\u53d1: \u5e76\u53d1\u6d41(concurrent)\u4e00\u4e2a\u903b\u8f91\u63a7\u5236\u6d41 \u7684\u6267\u884c\u65f6\u95f4 \u4e0e\u53e6\u4e00\u4e2a\u903b\u8f91\u63a7\u5236\u6d41\u91cd\u53e0, \u79f0\u4e3a\u5e76\u53d1\u7684\u6267\u884c\u3002\u591a\u4e2a\u6d41\u5e76\u53d1\u7684\u6267\u884c\u79f0\u4e3a\u5e76\u53d1\uff0c<br \/>\n3. \u4e00\u4e2a\u8fdb\u7a0b\u4e0e\u5176\u4ed6\u8fdb\u7a0b\u8f6e\u6d41\u8fd0\u884c\u6210\u4e3a\u591a\u4efb\u52a1<br \/>\n4. \u5e76\u884c\u6d41\uff08parallel follow\uff09 \u662f\u5e76\u53d1\u6d41\u7684\u4e00\u4e2a\u771f\u5b50\u96c6\uff0c \u5982\u679c\u4e24\u4e2a\u6d41\u5e76\u53d1\u7684\u8fd0\u884c\u5728\u4e0d\u540c\u7684\u5904\u7406\u5668\u6838\u6216\u8005\u8ba1\u7b97\u673a\u4e0a\uff0c\u6211\u4eec\u79f0\u4e3a\u5e76\u884c\u6d41\uff0c<\/li>\n<li>\u79c1\u6709\u5730\u5740\u7a7a\u95f4\uff1a n\u4e3a\u5730\u5740\u7684\u673a\u5668\u4e0a\uff0c 0,1,2&#8230;&#8230;z**n &#8211; 1\uff0c \u5730\u5740\u7a7a\u95f4\u9876\u90e8\u662f\u4fdd\u7559\u7ed9\u5185\u6838\u7684\uff0c\u8be5\u90e8\u5206\u662f\u5185\u6838\u5728\u4ee3\u8868\u8fdb\u7a0b\u6267\u884c\u6307\u4ee4\u65f6\u4f7f\u7528\u7684\u4ee3\u7801\uff0c\u6570\u636e\u548c\u6808<\/li>\n<li>\u7528\u6237\u6a21\u5f0f\u3001\u5185\u6838\u6a21\u5f0f:<br \/>\n1. \u4e3a\u4e86\u63d0\u4f9b\u4e00\u4e2a\u65e0\u61c8\u53ef\u51fb\u7684\u8fdb\u7a0b\u62bd\u8c61\uff0c\u5904\u7406\u5668\u63d0\u4f9b\u4e00\u79cd\u673a\u5236\uff0c\u6765\u9650\u5236\u4e00\u4e2a\u5e94\u7528\u53ef\u4ee5\u6267\u884c\u7684\u6307\u4ee4\u4ee5\u53ca\u4ed6\u53ef\u4ee5\u8bbf\u95ee\u7684\u5730\u5740\u7a7a\u95f4\u3002( \u4e3a\u4e86\u4e00\u4e2a\u65e0\u61c8\u53ef\u51fb\u7684\u62bd\u8c61\uff1f\u8fd8\u662f\u56e0\u4e3a\u5b89\u5168\uff0c \u6bd4\u5982\u5185\u6838\u6a21\u5f0f\u5e94\u8be5\u53ef\u4ee5\u5bf9\u7528\u6237\u6a21\u5f0f\uff0c\u63a9\u76d6 \u5730\u5740\u62bd\u8c61\u7684\u7ec6\u8282\uff0c\u800c\u4e0d\u662f\uff0c\u8ba9\u7528\u6237\u7834\u574f\u8fd9\u79cd\u62bd\u8c61)<br \/>\n2. \u4e00\u822c\u662f\u5904\u7406\u5668\u901a\u8fc7\u4e00\u4e2a\u5bc4\u5b58\u5668\u4e2d\u7684\u4e00\u4e2a\u6a21\u5f0f\u4f4d(mode bit)\u6765\u63d0\u4f9b\u8fd9\u79cd\u529f\u80fd\u7684\u3002\u8be5\u5bc4\u5b58\u5668 \u63cf\u8ff0\u4e86\u8fdb\u7a0b\u5f53\u524d\u7684\u7279\u6743\uff0c \u8bbe\u5b9a\u4e86\u4f4d\u6a21\u5f0f\uff0c \u8fdb\u7a0b\u5728\u5185\u6838\u6a21\u5f0f\uff0c\u53cd\u4e4b\u5728\u7528\u6237\u6a21\u5f0f<br \/>\n3. \u5185\u6838\u6a21\u5f0f: \u4e00\u4e2a\u8fd0\u884c\u5728\u5185\u6838\u6a21\u5f0f\u4e2d\u7684\u7a0b\u5e8f\u53ef\u4ee5\u6267\u884c\u6307\u4ee4\u96c6\u4e2d\u7684\u4efb\u4f55\u6307\u4ee4\uff0c\u5e76\u53ef\u4ee5\u8bbf\u95ee\u7cfb\u7edf\u4e2d\u7684\u4efb\u4f55\u5b58\u50a8\u4f4d\u7f6e\u3002<br \/>\n4. \u7528\u6237\u6a21\u5f0f: \u4e0d\u5141\u8bb8\u6267\u884c\u6267\u884c\u7279\u6743\u547d\u4ee4\uff0c\u6bd4\u5982\uff1a\u505c\u6b62\u5904\u7406\u5668\uff0c \u53d1\u8d77\u4e00\u4e2aI\/O\u64cd\u4f5c\u3002<br \/>\n5.\u00a0<strong>\u8fdb\u7a0b\u8fdb\u5165\u5230\u5185\u6838\u6a21\u5f0f\u7684\u552f\u4e00\u65b9\u6cd5\u662f\uff1a\u901a\u8fc7\uff0c\u4e2d\u65ad\u3001\u6545\u969c\u3001\u6216\u8005\u9677\u5165\uff08\u7cfb\u7edf\u8c03\u7528\uff09\u6765\u8fdb\u5165\u5230\u5185\u6838\u6a21\u5f0f<\/strong>\u3002<\/li>\n<li>\u4e0a\u4e0b\u6587\u5207\u6362<br \/>\n* \u4e0a\u4e0b\u6587\u5207\u6362: \u64cd\u4f5c\u7cfb\u7edf\u901a\u8fc7\u8fd9\u79cd<strong>\u8f83\u9ad8\u5c42\u6b21\u7684\u5f02\u5e38\u63a7\u5236\u6d41<\/strong>\u6765\u5b9e\u73b0\u591a\u4efb\u52a1\u3002\u4e0a\u4e0b\u6587\u5207\u6362\u673a\u5236\u662f\u5efa\u7acb\u5728 \u4e2d\u65ad\uff0c\u9677\u9631\uff0c\u6545\u969c\uff0c\u7ec8\u6b62 \u8f83\u4f4e\u5f02\u5e38\u5c42\u6b21\u673a\u5236\u4e4b\u4e0a\u7684\u3002<br \/>\n* \u4e0a\u4e0b\u6587: \u5c31\u662f\u5185\u6838\u91cd\u542f\u4e00\u4e2a\u88ab\u62a2\u5360\u8fdb\u7a0b\u6240\u9700\u8981\u7684\u6570\u636e\u72b6\u6001\u3002\u5305\u62ec\uff0c\u5bc4\u5b58\u5668\uff0c\u7a0b\u5e8f\u8ba1\u6570\u5668\uff0c\u5185\u6838\u6808\uff0c\u548c\u5404\u79cd\u6570\u636e\u7ed3\u6784\u7b49\u3002\u5185\u6838\u4e3a\u6bcf\u4e00\u4e2a\u8fdb\u7a0b\u63d0\u4f9b\u4e00\u4e2a\u4e0a\u4e0b\u6587\u3002<br \/>\n* \u8c03\u5ea6: \u5728\u8fdb\u7a0b\u6267\u884c\u7684\u67d0\u4e9b\u65f6\u523b\uff08\u90a3\u4e9b\uff1f\uff09\uff0c\u5185\u6838\u53ef\u4ee5\u51b3\u5b9a\u62a2\u5360 \u5f53\u524d\u8fdb\u7a0b\uff0c\u5e76\u91cd\u65b0\u5f00\u59cb\u4e00\u4e2a\u8fdb\u7a0b\uff0c \u8fd9\u79cd\u51b3\u5b9a\u53eb\u505a\u8c03\u5ea6\u3002\u6709\u5185\u6838\u4e2d\u6210\u4e3a\u8c03\u5ea6\u5668\u7684\u4ee3\u7801\u5904\u7406\u3002\u5728\u5185\u6838\u8c03\u5ea6\u4e86\u4e00\u4e2a\u8fdb\u7a0b\u8fd0\u884c\u540e\uff0c\u5979\u5c31\u62a2\u5360\u4e86\u5f53\u524d\u8fdb\u7a0b\uff0c\u4f7f\u7528\u4e0a\u4e0b\u6587\u5207\u6362\u673a\u5236\u6765\u5c06\u63a7\u5236\u8f6c\u79fb\u5230\u65b0\u7684\u8fdb\u7a0b\u3002<br \/>\n1. \u4fdd\u5b58\u5f53\u524d\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587<br \/>\n2. \u6062\u590d\u67d0\u4e2a\u5148\u524d\u88ab\u62a2\u5360\u7684\u8fdb\u7a0b\u88ab\u4fdd\u5b58\u7684\u4e0a\u4e0b\u6587<br \/>\n3. \u5c06\u63a7\u5236\u8f6c\u79fb\u5230\u65b0\u7684\u8fdb\u7a0b<\/p>\n<ul>\n<li>\u4e0a\u4e0b\u6587\u5207\u6362\u7684\u51e0\u4e2a\u7b80\u5355\u793a\u4f8b\uff1a\n<ul>\n<li><strong>\u4e2d\u65ad(\u4efb\u4f55\u65f6\u5019): \u6240\u6709\u7cfb\u7edf\u90fd\u6709\u67d0\u79cd\u4ea7\u751f\u5468\u671f\u6027\u5b9a\u65f6\u5668\u4e2d\u65ad\u7684\u673a\u5236\uff0c\u5178\u578b\u7684\u4e3a1\u6beb\u79d2\uff0c \u6bcf\u6b21\u53d1\u751f\u5b9a\u65f6\u5668\u4e2d\u65ad\u65f6\uff0c\u5185\u6838\u5c31\u80fd\u591f\u5224\u65ad \u5f53\u524d\u8fdb\u7a0b\u662f\u5426\u6267\u884c\u4e86\u8db3\u591f\u7684\u65f6\u95f4\uff0c\u5e76\u5207\u6362\u5230\u4e00\u4e2a\u65b0\u7684\u8fdb\u7a0b\u3002(\u64cd\u4f5c\u7cfb\u7edf\u8d56\u4ee5\u751f\u5b58\u7684\u63a7\u5236\u673a\u5236)<\/strong><\/li>\n<li>\u963b\u585e\uff1a\u7cfb\u7edf\u8c03\u7528\u65f6\u5019\uff0c\u56e0\u4e3a\u7b49\u5f85\u67d0\u4e2a\u4e8b\u4ef6\u800c\u53d1\u751f\u963b\u585e\uff0c\u53ef\u80fd\u53d1\u751f\u4e0a\u4e0b\u6587\u5207\u6362\u3002\u6bd4\u5982 read \u7cfb\u7edf\u8bf7\u6c42\u78c1\u76d8\u8bbf\u95ee\uff0c\u5185\u6838\u53ef\u80fd\u8fdb\u884c\u4e0a\u4e0b\u6587\u5207\u6362\uff0c \u6765\u6267\u884c\u5176\u4ed6\u64cd\u4f5c\uff0c\u800c\u4e0d\u662f\u7b49\u5f85I\/O, Sleep \u7cfb\u7edf\u8c03\u7528\uff0c \u663e\u793a\u7684\u8bf7\u6c42\u8ba9\u8c03\u7528\u8fdb\u7a0b\u4f11\u7720\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u8fdb\u7a0b\u63a7\u5236\uff1a\n<ol>\n<li>\u8fdb\u7a0b\u521b\u5efa\u548c\u7ec8\u6b62\uff1a \u4ece\u7a0b\u5e8f\u5458\u7684\u89d2\u5ea6\u6765\u770b \u8fdb\u7a0b\u603b\u662f\u5904\u4e8e3\u4e2a\u72b6\u6001\uff1a \u8fd0\u884c\uff0c \u505c\u6b62\uff0c\u7ec8\u6b62\uff0c\n<ul>\n<li>\u505c\u6b62\uff1a \u8fdb\u7a0b\u7684\u6267\u884c\u88ab\u6302\u8d77\u3002 \u4e14\u4e0d\u4f1a\u88ab\u8c03\u5ea6\uff0c \u5f53\u6536\u5230SIGSTOP, SIGTSTP, SIDTTIN, SIGTTOUT \u8fdb\u7a0b\u5c31\u4f1a\u505c\u6b62\uff0c\u5e76\u4fdd\u6301\u505c\u6b62\u76f4\u5230\u5b83\u6536\u5230\u4e00\u4e2aSIGCONT \u7a0b\u5e8f\u518d\u6b21\u6267\u884c<\/li>\n<li>\u7ec8\u6b62\uff1a \u8fdb\u7a0b\u6c38\u8fdc\u505c\u6b62\u3002\u539f\u56e0\u6709\uff1a 1. \u6536\u5230\u4e00\u683c\u4fe1\u53f7\uff0c\u8be5\u4fe1\u53f7\u9ed8\u8ba4\u884c\u4e3a\u662f\u7ec8\u6b62\u8fdb\u7a0b 2. \u4ece\u4e3b\u7a0b\u5e8f\u8fd4\u56de 3. \u8c03\u7528exit\u51fd\u6570<\/li>\n<\/ul>\n<\/li>\n<li>fork\n<ul>\n<li>\u5b50\u8fdb\u7a0b\u5f97\u5230\u4e0e\u7236\u8fdb\u7a0b\u7528\u6237\u7ea7\u865a\u62df\u5730\u5740\u7a7a\u95f4\u76f8\u540c\u7684 \u4e00\u4efd\u62f7\u8d1d\uff0c \u6587\u672c\uff0c\u6570\u636e\uff0cbss\uff0c\u5806\u7b49\u3002 \u5b50\u8fdb\u7a0b\u8fd8\u83b7\u5f97\u7236\u8fdb\u7a0b\u4efb\u4f55\u6253\u5f00\u6587\u4ef6\u63cf\u8ff0\u7b26\u7684\u76f8\u540c\u7684\u62f7\u8d1d\u3002 \u8fd9\u610f\u5473\u5b50\u8fdb\u7a0b\u53ef\u4ee5\u8bfb\u5199\u7236\u8fdb\u7a0b\u4e2d\u6253\u5f00\u7684\u4efb\u4f55\u6587\u4ef6\u3002\u6700\u5927\u7684\u533a\u522b\u5728\u4e8ePID\u3002<\/li>\n<li>fork\u51fd\u6570 \u53ea\u88ab\u8c03\u7528\u4e00\u6b21\uff0c \u5374\u8fd4\u56de\u4e24\u6b21\u3002\u5728\u7236\u8fdb\u7a0b\u4e2d fork\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684PID\uff0c \u5728\u5b50\u8fdb\u7a0b\u4e2d\uff0c\u8fd4\u56de0\uff0c\u56e0\u4e3a\u5b50\u8fdb\u7a0b\u7684PID\u4e3a\u975e\u96f6\uff0c\u6240\u4ee5\u63d0\u4f9b\u4e86\u4e00\u79cd\u660e\u786e\u7684\u65b9\u6cd5\uff0c\u6765\u5206\u8fa8\u7a0b\u5e8f\u5728 \u7236\u8fdb\u7a0b\u4e2d\uff0c\u8fd8\u662f\u5b50\u8fdb\u7a0b\u4e2d\u6267\u884c\u3002\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-c\"><code class=\"c  language-c\">  <span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n  <span class=\"token punctuation\">{<\/span>\r\n      pid_t <span class=\"token operator\">=<\/span> pid<span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token keyword\">int<\/span> x <span class=\"token operator\">=<\/span> <span class=\"token number\">1<\/span><span class=\"token punctuation\">;<\/span>\r\n      pid <span class=\"token operator\">=<\/span> <span class=\"token function\">Fork<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>pid <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>\r\n        <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"child :x %d\\n\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">++<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n        <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token punctuation\">}<\/span>\r\n      <span class=\"token function\">printf<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"parent\uff1a x %d\\n\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token operator\">--<\/span>x<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n      <span class=\"token function\">exit<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n  <span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<\/div>\n<ul>\n<li>\u8c03\u7528\u4e00\u6b21\u8fd4\u56de\u4e24\u6b21\uff1a fork\u51fd\u6570\u88ab\u7236\u8fdb\u7a0b \u8c03\u7528\u4e00\u6b21\uff0c \u4f46\u662f\u5374\u8fd4\u56de\u4e24\u6b21\uff0c \u4e00\u6b21\u8fd4\u56de\u5230\u7236\u8fdb\u7a0b\u4e2d\uff0c\u4e00\u6b21\u8fd4\u56de\u5230\u5b50\u8fdb\u7a0b\u4e2d\uff0c\u5bf9\u4e8e\u53eafork\u4e00\u6b21\u7684\u7a0b\u5e8f\u6765\u8bf4\uff0c\u8fd9\u8fd8\u662f\u76f8\u5f53\u7b80\u5355\u76f4\u63a5\u7684\uff0c\u4f46\u662f\u5bf9\u4e8e\u591a\u6b21fork\u7684\u7a0b\u5e8f\u6765\u8bf4\uff0c\u9700\u8981\u8c28\u614e\u7684\u5206\u6790<\/li>\n<li>\u5e76\u53d1\u6267\u884c\uff1a\u7236\u8fdb\u7a0b\u548c\u5b50\u8fdb\u7a0b\u662f\u5e76\u53d1\u8fd0\u884c\u7684\u72ec\u7acb\u8fdb\u7a0b\u3002\u4e5f\u5c31\u8bf4\u4e0d\u80fd\u591f\u5047\u5b9a \u8fdb\u7a0b\u7684\u6267\u884c\u987a\u5e8f\u3002<\/li>\n<li>\u76f8\u540c\u7684\u4f46\u662f\u72ec\u7acb\u7684\u5730\u5740\u7a7a\u95f4<\/li>\n<li>\u5171\u4eab\u6587\u4ef6\uff1a\u5b50\u8fdb\u7a0b\u7ee7\u627f\u4e86\u7236\u8fdb\u7a0b\u7684\u6240\u6709\u7684\u6253\u5f00\u6587\u4ef6\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u56de\u6536\u5b50\u8fdb\u7a0b\uff1await\/waitpid\n<ul>\n<li>\u56de\u6536\uff1a \u5f53\u4e00\u4e2a\u8fdb\u7a0b\u7ec8\u6b62\u65f6\uff0c\u5185\u6838\u5e76\u4e0d\u662f\u628a\u5b83\u4ece\u7cfb\u7edf\u4e2d\u6e05\u9664\u51fa\u53bb\uff0c\u800c\u662f\u4fdd\u6301\u7ec8\u6b62\u72b6\u6001\uff0c\u76f4\u5230\u7236\u8fdb\u7a0b\u56de\u6536\u3002\u5f53\u7236\u8fdb\u7a0b\u56de\u6536\u5df2\u7ecf\u7ec8\u6b62\u7684\u5b50\u8fdb\u7a0b\u65f6\uff0c\u5185\u6838\u5c06\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u72b6\u6001\u4f20\u9012\u7ed9\u7236\u8fdb\u7a0b\u3002\u7136\u540e\u629b\u5f03\u5df2\u7ec8\u6b62\u7684\u8fdb\u7a0b\u3002\u6539\u8fdb\u7a0b\u5c31\u4e0d\u5b58\u5728\u4e86\uff0c<\/li>\n<li>\u50f5\u6b7b\u8fdb\u7a0b: \u4e00\u4e2a\u7ec8\u6b62\u4e86\u4f46\u662f\u8fd8\u6ca1\u6709\u88ab\u56de\u6536\u7684\u8fdb\u7a0b,<\/li>\n<li>\u50f5\u6b7b\u8fdb\u57ce\u5904\u7406\uff1a \u7236\u8fdb\u7a0b\u8fd8\u6ca1\u6709\u56de\u6536\u50f5\u6b7b\u8fdb\u7a0b\u5c31\u9000\u51fa\u4e86\uff0c\u90a3\u4e48\u5185\u6838\u4f1a\u5b89\u6392init\u8fdb\u7a0b\u6765\u56de\u6536\u4ed6\u4eec\u3002init \u8fdb\u7a0bPID \u4e3a1\u5728\u7cfb\u7edf\u521d\u59cb\u5316\u65f6\u5019\u6709\u5185\u6838\u521b\u5efa\u3002<\/li>\n<li>waitpid \u51fd\u6570<br \/>\n1. waitpid(pid_t pid, int * status, int optins)<br \/>\n2. pid &gt; 0 \u7b49\u5f85\u5355\u4e2apid\uff0c pic = -1\uff0c \u7b49\u5f85 \u7236\u8fdb\u7a0b\u7684\u6240\u6709\u5b50\u8fdb\u7a0b\u3002<br \/>\n3. optIons\uff1a<br \/>\n* WNOHANG: \u7b49\u5f85\u96c6\u5408\u4e2d\u7684\u4efb\u4f55\u5b50\u8fdb\u7a0b\u90fd\u8fd8\u6ca1\u6709\u7ec8\u6b62\uff0c \u90a3\u4e48\u5c31\u7acb\u5373\u8fd4\u56de, \u9ed8\u8ba4\u884c\u6587\u662f \u6302\u8d77\u8c03\u7528\u8fdb\u7a0b\uff0c \u76f4\u5230\u6240\u6709\u5b50\u8fdb\u7a0b\u7ec8\u6b62\uff0c<br \/>\n* WUNTRACED\uff1a \u6302\u8d77\u8c03\u7528\u8fdb\u7a0b\uff0c \u76f4\u5230 \u7b49\u5f85\u96c6\u5408\u4e2d\u4e00\u4e2a\u8fdb\u7a0b\u53d8\u6210 \u5df2\u7ec8\u6b62\u6216\u8005\u88ab\u505c\u6b62\uff0c\u8fd4\u56de\uff0c \u8fd4\u56de\u7684PID\u4e3a\u5f15\u8d77\u8fd4\u56de\u7684 \u8fdb\u7a0bPID\uff0c \u9ed8\u8ba4\u884c\u4e3a\uff1a\u8fd4\u56de\u5df2\u7ecf\u7ec8\u6b62\u7684\u5b50\u8fdb\u7a0b<br \/>\n* WHOHANG | WUNTRACED, \u7acb\u5373\u8fd4\u56de\uff0c \u5982\u679c\u7b49\u5f85\u96c6\u5408\u4e2d\u6ca1\u6709\u4efb\u4f55\u5b50\u8fdb\u7a0b\u88ab\u505c\u6b62\u6216\u5df2\u7ec8\u6b62\uff0c \u90a3\u4e48\u8fd4\u56de\u503c\u4e3a0\uff0c \u6216\u8005\u8fd4\u56de\u90a3\u4e2a\u505c\u6b62\u7684\u7ec8\u6b62\u7684\u8fdb\u7a0bPPID<\/p>\n<ol start=\"4\">\n<li>\u5982\u679cstatus\u53c2\u6570\u975e\u7a7a\uff0cwaitpid\u5728status\u4e2d\u653e\u7f6e \u5173\u4e8e\u5bfc\u81f4\u8fd4\u56de\u5b50\u8fdb\u7a0b\u7684\u72b6\u6001\u4fe1\u606f\u3002\u4e0b\u9762\u662f\u89e3\u91castatus\u53c2\u6570\u7684\u51e0\u4e2a\u5b8f<br \/>\n* WIFEXITED(status): \u5982\u679c\u5b50\u8fdb\u7a0b\u901a\u8fc7\u8c03\u7528exit\u6216\u8005\u4e00\u4e2a\u8fd4\u56de(return) \u6b63\u5e38\u7ec8\u6b62\u3002\u5c31\u8fd4\u56de\u771f<br \/>\n* WEXITSTATUS(status): \u8fd4\u56de\u4e00\u4e2a\u6b63\u5e38\u7ec8\u6b62\u7684\u5b50\u8fdb\u7a0b\u7684\u9000\u51fa\u72b6\u6001\uff0c\u53ea\u6709\u5728WIFEXITED \u8fd4\u56de\u4e3a\u771f\u65f6\u4e86\uff0c \u624d\u4f1a\u5b9a\u4e49\u8fd9\u4e2a\u72b6\u6001\u3002<\/p>\n<ul>\n<li>WIFSIGNALED(status): \u5982\u679c\u5b50\u8fdb\u7a0b\u662f\u56e0\u4e3a\u4e00\u4e2a\u672a\u88ab\u6355\u83b7\u7684\u4fe1\u53f7\u7ec8\u6b62\u7684\u3002\u90a3\u4e48\u8fd4\u56de\u771f<\/li>\n<li>WTERMSIG(status): \u8fd4\u56de\u5bfc\u81f4\u5b50\u8fdb\u7a0b\u7ec8\u6b62\u7684\u4fe1\u53f7\u7684\u7f16\u7801\uff0c \u53ea\u6709\u548bWIFESIGNailed\u4e3a\u771f \u624d\u5b9a\u4e49\u8fd9\u4e2a\u72b6\u6001<\/li>\n<li>WIFSTOPPED(status): \u5982\u679c\u5f15\u8d77\u8fd4\u56de\u7684\u5b50\u8fdb\u7a0b\u5f53\u524d\u662f\u88ab\u505c\u6b62\u7684\u3002\u90a3\u4e48\u5c31\u8fd4\u56de\u771f\u3002<\/li>\n<li>WSTOPSIG(status): \u8fd4\u56de\u5f15\u8d77\u5b50\u8fdb\u7a0b\u505c\u6b62\u7684\u4fe1\u53f7\u7684\u6570\u91cf\uff0c\u53ea\u6709 wifstopped \u8fd4\u56de\u4e3a\u771f\u65f6\uff0c\u624d\u5b9a\u4e49\u8fd9\u4e2a\u72b6\u6001\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n<li>wait \u51fd\u6570\u662fwaitpid \u7684 \u7b80\u5355\u7248\u672c\uff0c wait(int * status) === waitpid(-1, &amp; status, 0)<\/li>\n<\/ul>\n<\/li>\n<li>\u8ba9\u8fdb\u7a0b\u4f11\u7720\n<ul>\n<li>sleep\uff1a\u4f11\u7720\u4e00\u5b9a\u79d2\u6570<\/li>\n<li>pause\uff1a\u51fd\u6570\u8ba9\u8c03\u7528\u8fdb\u7a0b\u4f11\u7720\uff0c\u76f4\u5230\u8be5\u8fdb\u7a0b\u6536\u5230\u4e00\u4e2a\u4fe1\u53f7<\/li>\n<\/ul>\n<\/li>\n<li>\u52a0\u8f7d\u5e76\u8fd0\u884c\u7a0b\u5e8f execve:<br \/>\n1. execve(char * filename, char * argsv[], char * envp[])<br \/>\n2. \u51fd\u6570\u52a0\u8f7d\u5e76\u8fd0\u884c\u53ef\u6267\u884c\u76ee\u6807\u6587\u4ef6filename, \u5e76\u4f20\u9012\u53c2\u6570argv, \u73af\u5883\u53d8\u91cf envp execve \u8c03\u7528\u4e00\u6b21 \u5e76\u4e0d\u8fd4\u56de fork\u51fd\u6570\u5728\u65b0\u7684\u5b50\u8fdb\u7a0b\u4e2d\u8fd0\u884c\u76f8\u540c\u7684\u7a0b\u5e8f\uff0c\u65b0\u7684\u5b50\u8fdb\u7a0b\u662f\u7236\u8fdb\u7a0b\u7684\u4e00\u4e2a\u590d\u5236\u54c1\u3002 execve \u51fd\u6570\u5728\u5f53\u524d\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u52a0\u8f7d\u5e76\u8fd0\u884c\u4e00\u4e2a\u65b0\u7684\u7a0b\u5e8f\uff0c\u4ed6\u4f1a\u8986\u76d6\u5f53\u524d\u8fdb\u7a0b\u7684\u5730\u5740\u7a7a\u95f4\u3002\u4f46\u662f\u5e76\u6ca1\u6709\u521b\u5efa\u4e00\u4e2a\u65b0\u8fdb\u7a0b\u3002\u65b0\u8fdb\u7a0b\u4f9d\u7136\u6709\u76f8\u540c\u7684PID\uff0c \u5df2\u6253\u5f00\u7684\u6587\u4ef6\u63cf\u8ff0\u7b26<\/li>\n<\/ol>\n<\/li>\n<li>\u4fe1\u53f7\n<ul>\n<li>\u4fe1\u53f7\u6982\u5ff5<br \/>\n* \u66f4\u9ad8\u5c42\u7684\u8f6f\u4ef6\u5f02\u5e38\u5f62\u5f0f\u3002\u5141\u8bb8\u4e2d\u65ad\u5176\u4ed6\u8fdb\u7a0b<br \/>\n* man 7 signal \u5f97\u5230\u4fe1\u53f7\u5217\u8868<br \/>\n* \u6bcf\u4e2a\u4fe1\u53f7\u7c7b\u578b\u90fd\u5bf9\u5e94\u4e8e \u67d0\u79cd\u7cfb\u7edf\u4e8b\u4ef6\uff0c \u5e95\u5c42\u7684\u786c\u4ef6\u5f02\u5e38 \u662f\u7531\u5185\u6838\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f\u5904\u7406\u7684\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c \u5bf9\u7528\u6237\u8fdb\u7a0b\u662f\u4e0d\u53ef\u89c1\u7684\u3002\u4fe1\u53f7\u63d0\u4f9b\u4e86\u4e00\u79cd\u673a\u5236\uff0c\u6765\u901a\u77e5\u7528\u6237\u53d1\u751f\u4e86\u8fd9\u4e9b\u5f02\u5e38\u3002<\/li>\n<li>\u53d1\u5c04\u4fe1\u53f7 \u5230\u63a5\u53d7\u8005\u7684\u8fc7\u7a0b \u76f8\u5173\u6982\u5ff5\uff1a<br \/>\n1. \u53d1\u9001\u4fe1\u53f7\uff1a \u5185\u6838\u901a\u8fc7\u66f4\u65b0\u76ee\u7684\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u7684\u67d0\u4e2a\u72b6\u6001\uff0c\u6765\u53d1\u9001\u4e00\u4e2a\u4fe1\u53f7\u5230\u76ee\u7684\u8fdb\u7a0b\uff0c\u53d1\u5c04\u4fe1\u53f7\u7684\u539f\u56e0\u6709\uff1a 1. \u5185\u6838\u68c0\u6d4b\u5230\u4e00\u4e2a\u4e8b\u4ef6\uff0c\u901a\u77e5\u8fdb\u7a0b\uff0c 2. \u4e00\u4e2a\u8fdb\u7a0b\u8c03\u7528kill\u51fd\u6570\uff0c \u8981\u6c42\u5185\u6838\u53d1\u9001\u4fe1\u53f7\u3002<br \/>\n2. \u63a5\u53d7\u4fe1\u53f7\uff1a \u5f53\u76ee\u7684\u8fdb\u7a0b\u88ab\u5185\u6838\u5f3a\u8feb\u4ee5\u67d0\u79cd\u5f62\u5f0f\u5bf9\u4fe1\u53f7\u7684\u53d1\u9001\u505a\u51fa\u53cd\u5e94\u65f6\uff0c\u53cd\u5e94\u6709\uff1a 1. \u5ffd\u7565\u4fe1\u53f7\uff0c 2. \u7ec8\u6b62 3. \u6267\u884c\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u7684\u7528\u6237\u51fd\u6570<br \/>\n3. \u5f85\u5904\u7406\u4fe1\u53f7\uff1a\u4e00\u4e2a\u53d1\u51fa\u800c\u6ca1\u6709\u88ab\u63a5\u53d7\u7684\u4fe1\u53f7\uff0c\u4efb\u4f55\u65f6\u523b\uff0c \u4e00\u79cd\u7c7b\u578b\u81f3\u591a\u53ea\u4f1a\u6709\u4e00\u4e2a\u5f85\u5904\u7406\u4fe1\u53f7\u3002\u5982\u679c\u4e00\u4e2a\u8fdb\u7a0b\u6709\u4e00\u4e2a\u7c7b\u578b\u4e3ak\u7684\u5f85\u5904\u7406\u4fe1\u53f7\uff0c\u90a3\u4e48\u4efb\u4f55\u63a5\u4e0b\u6765\u7684\u53d1\u9001\u5230\u8fdb\u7a0b\u7684\u7c7b\u578b\u4e3ak\u7684\u4fe1\u53f7\uff0c\u90fd\u4f1a\u88ab\u7b80\u5355\u7684\u4e22\u5f03\u3002<br \/>\n4. \u963b\u585e\u4fe1\u53f7\uff1a \u4e00\u4e2a\u8fdb\u7a0b\u53ef\u4ee5\u8bbe\u5b9a\u963b\u585e\u4e00\u79cd\u7c7b\u578b\u7684\u4fe1\u53f7\u3002\u53ef\u4ee5\u88ab\u53d1\u9001\uff0c\u4f46\u662f\u4e0d\u4f1a\u88ab\u63a5\u53d7\u3002<br \/>\n5. \u5b9e\u73b0\uff1a pending \u4f4d\u5411\u91cf \u7ef4\u62a4\u5f85\u5904\u7406\u4fe1\u53f7\u96c6\u5408\uff0c blocked \u4f4d\u5411\u91cf\uff0c\u7ef4\u62a4\u88ab\u963b\u585e\u4fe1\u53f7\u96c6\u5408\u3002\u4f20\u9012\u7c7b\u578b\u4e3ak\u7684\u4fe1\u53f7\uff0c pending \u7684k\u4f4d \u88ab\u6807\u8bb0\uff0c \u63a5\u6536\u4e86 \u6e05\u9664\u6807\u8bb0\u3002<\/li>\n<li>\u53d1\u9001\u4fe1\u53f7<br \/>\n1. \u8fdb\u7a0b\u7ec4\uff1a \u63d0\u4f9b\u4e86\u5927\u91cf\u5411\u8fdb\u7a0b\u53d1\u9001\u4fe1\u53f7\u7684\u673a\u5236\uff0c \u6240\u6709\u8fd9\u4e9b\u673a\u5236\u90fd\u662f\u57fa\u4e8e\u8fdb\u7a0b\u7ec4\u7684\u3002\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u5c5e\u4e8e\u4e00\u4e2a\u8fdb\u7a0b\u7ec4\uff0c<br \/>\n2. kill \u7a0b\u5e8f\u53d1\u9001\u4fe1\u53f7<br \/>\n3. \u952e\u76d8\u53d1\u9001\u4fe1\u53f7\uff0c \u5916\u58f3\u7a0b\u5e8f \u521b\u5efa\u7a0b\u5e8f\u6267\u884c\uff0cctrl-c \u4f1a\u53d1\u9001\u4e00\u4e2aSIGINT\u4fe1\u53f7\u5230 \u5916\u58f3\uff0c \u5916\u58f3\u7a0b\u5e8f\u6355\u83b7\u5230\u8be5\u4fe1\u53f7\uff0c\u7136\u540e\u53d1\u9001SIGINT \u4fe1\u53f7\u5230\u8fd9\u4e2a\u524d\u53f0\u8fdb\u7a0b\u4e2d\u7684\u6bcf\u4e2a\u8fdb\u7a0b\u3002ctrl-z\u5219\u4f1a\u53d1\u9001 SIGTSTP \u4fe1\u53f7<br \/>\n4. kill \u51fd\u6570\u8c03\u7528<br \/>\n5. alarm \u51fd\u6570\u53d1\u9001\u4fe1\u53f7 SIGALRM \u4fe1\u53f7\uff0c \u5728sec \u79d2\u4e2d\u53d1\u9001\u4fe1\u53f7<\/li>\n<li>\u63a5\u53d7\u4fe1\u53f7<br \/>\n1. \u5f53\u5185\u6838\u4ece\u4e00\u4e2a\u5f02\u5e38\u5904\u7406\u7a0b\u5e8f\u4e2d\u8fd4\u56de\uff0c\u51c6\u5907\u5c06\u63a7\u5236\u4f20\u9012\u5230\u8fdb\u7a0bp\u65f6\uff0c\u4ed6\u4f1a\u68c0\u67e5\u8fdb\u7a0bp\u7684\u672a\u88ab\u963b\u585e\u7684\u5f85\u5904\u7406\u4fe1\u53f7\u7684\u96c6\u5408\u3002 \u5982\u679c\u8fd9\u4e2a\u96c6\u5408\u4e0d\u4e3a\u7a7a\uff0c \u90a3\u4e48\u5185\u6838\u9009\u62e9\u96c6\u5408\u4e2d\u7684\u67d0\u4e2a\u4fe1\u53f7k\uff0c \u5e76\u4e14\u5f3a\u5236p\u63a5\u53d7\u4fe1\u53f7k\uff0c \u89e6\u53d1\u8fdb\u7a0b\u7684\u67d0\u4e2a\u884c\u4e3a\uff0c \u6bcf\u4e2a\u4fe1\u53f7\u7c7b\u578b\u90fd\u6709\u4e00\u4e2a\u9884\u8ba2\u7684\u9ed8\u8ba4\u884c\u4e3a\u5982\u4e0b\uff1a<br \/>\n* \u8fdb\u7a0b\u7ec8\u6b62<br \/>\n* \u8fdb\u7a0b\u7ec8\u6b62\u5e76\u8f6c\u5b58\u50a8\u5668<br \/>\n* \u8fdb\u7a0b\u505c\u6b62\u77e5\u9053\u500dSIGCONT \u4fe1\u53f7\u91cd\u542f<br \/>\n* \u8fdb\u7a0b\u5ffd\u7565\u8be5\u4fe1\u53f7<br \/>\n2. \u8fdb\u7a0b\u53ef\u4ee5\u901a\u8fc7signal\u51fd\u6570\u4fee\u6539\u548c\u4fe1\u53f7\u76f8\u5173\u8054\u7684\u9ed8\u8ba4\u884c\u4e3a\uff0c \u552f\u4e00\u7684\u4f8b\u5916\u662f\uff1a SIGSTOP\uff0c SIGKILL\u4ed6\u4eec\u7684\u9ed8\u8ba4\u884c\u4e3a\u662f\u4e0d\u53ef\u4ee5\u4fee\u6539\u7684\u3002 signal(int signum, sighandler_t handler) \u8bbe\u7f6e\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u9009\u9879<br \/>\n* \u5982\u679chandler \u662fSIG_IGN, \u90a3\u4e48\u5ffd\u7565\u7c7b\u578b\u4e3a signum \u7684\u4fe1\u53f7<br \/>\n* \u5982\u679chandler \u662fSIG_DFL\uff0c\u90a3\u4e48\u7c7b\u578b\u4e3asignum\u7684\u4fe1\u53f7\u884c\u4e3a\u4fee\u6539\u672a\u9ed8\u8ba4<br \/>\n* \u5426\u5219handler\u662f\u7528\u6237\u5b9a\u4e49\u7684 \u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u5730\u5740\uff0c<br \/>\n* \u8c03\u7528\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u6210\u4e3a\u6355\u83b7\u4fe1\u53f7\uff0c \u6267\u884c\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u4e3a \u5904\u7406\u4fe1\u53f7\u3002\u5904\u7406\u7a0b\u5e8f\u4f1a\u8c03\u7528\u4f1a\u4f20\u9012\u4e00\u4e2a\u53c2\u6570k\uff0c\u4e3a\u4fe1\u53f7\u7c7b\u578b\uff0c \u56e0\u6b64\uff0c \u540c\u4e00\u4e2a\u51fd\u6570\u53ef\u4ee5\u8bbe\u5b9a\u4e3a\u5904\u7406\u591a\u4e2a\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f<\/p>\n<ol start=\"3\">\n<li>\u8bbe\u5b9a\u963b\u585e\uff0c\u548c\u53d6\u6d88\u963b\u585e\uff0c sigismember(sigset_t * set, int signum)<\/li>\n<\/ol>\n<\/li>\n<li>\u4fe1\u53f7\u5904\u7406\u95ee\u9898\uff1a<br \/>\n1. \u5f85\u5904\u7406\u4fe1\u53f7\u88ab\u963b\u585e\uff1a Unix\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u901a\u5e38\u4f1a\u963b\u585e\u5f53\u524d\u5904\u7406\u7a0b\u5e8f\u6b63\u5728\u5904\u7406\u7c7b\u578b\u7684\u5f85\u5904\u7406\u4fe1\u53f7\u3002\u5982\u679c\u4e00\u4e2a\u8fdb\u7a0b\u6355\u83b7\u4e00\u4e2aSIGINT\u4fe1\u53f7\uff0c\u5e76\u8fd0\u884c\u5904\u7406\u7a0b\u5e8f\uff0c\u5982\u679c\u53e6\u5916\u4e00\u4e2aSIGINT \u4fe1\u53f7\u4f20\u9012\u5230\u8fd9\u4e2a\u8fdb\u7a0b\uff0c \u90a3\u4e48\u8fd9\u4e2aSIGINT\u5c06\u53d8\u6210\u5f85\u5904\u7406\u7684\uff0c\u4f46\u662f\u4e0d\u4f1a\u88ab\u63a5\u53d7\uff0c\u76f4\u5230\u5904\u7406\u7a0b\u5e8f\u8fd4\u56de<br \/>\n2. \u5f85\u5904\u7406\u4fe1\u53f7\u4e0d\u4f1a\u6392\u961f\u7b49\u5f85\uff0c\u4efb\u610f\u7c7b\u578b\u81f3\u591a\u53ea\u6709\u4e00\u4e2a\u5f85\u5904\u7406\u4fe1\u53f7<br \/>\n3.\u00a0<strong>\u7cfb\u7edf\u8c03\u7528\u53ef\u4ee5\u88ab\u4e2d\u65ad<\/strong>\uff0c\u6162\u7cfb\u7edf\u8c03\u7528\uff0c read\uff0c wait\uff0c accept\u7b49\u4f1a\u963b\u585e\u8fdb\u7a0b\u4e00\u6bb5\u65f6\u95f4\uff0c\u67d0\u4e9b\u7cfb\u7edf\u4e2d\u5f53\u6355\u83b7\u4e00\u4e2a\u4fe1\u53f7\u65f6\uff0c\u88ab\u4e2d\u65ad\u7684\u6162\u7cfb\u7edf\u8c03\u7528\u4e0d\u4f1a\u88ab\u7ee7\u7eed\u800c\u662f\u8fd4\u56de\u9519\u8bef<\/li>\n<li>\u975e\u672c\u5730\u8df3\u8f6c\uff1a \u5b83\u5c06\u63a7\u5236\u76f4\u63a5\u4ece\u4e00\u4e2a\u51fd\u6570\u8f6c\u79fb\u5230\u53e6\u4e00\u4e2a\u5f53\u524d\u6b63\u5728\u6267\u884c\u7684\u51fd\u6570\uff0c\u800c\u4e0d\u9700\u8981\u7ecf\u8fc7\u6b63\u5e38\u7684\u8c03\u7528&#8211;\u8fd4\u56de\u5e8f\u5217\u3002(setjump longjump, sigsetjmp, siglongjmp)\n<ul>\n<li>setjump \u51fd\u6570\u5728env \u7f13\u51b2\u533a\u4e2d\u4fdd\u5b58\u5f53\u524d\u8c03\u7528\u73af\u5883<\/li>\n<li>longjmp \u4eceenv\u7f13\u51b2\u533a\u4e2d\u6062\u590d\u8c03\u7528\u73af\u5883\uff0c\u7136\u540e\u89e6\u53d1\u4e00\u4e2a\u4ece\u6700\u8fd1\u4e00\u6b21\u521d\u59cb\u5316env\u7684setjmp\u8c03\u7528\u7684\u8fd4\u56de\uff0c\u7136\u540esetjmp\u8fd4\u56de\uff0c\u5e76\u5e26\u6709\u975e\u96f6\u7684\u8fd4\u56de\u503cretval<\/li>\n<li>\u4ece\u6df1\u5c42\u5d4c\u5957\u51fd\u6570\u8c03\u7528\u4e2d\u7acb\u523b\u8fd4\u56de<\/li>\n<li>\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f\u5206\u652f\u5230\u4e00\u4e2a\u7279\u6b8a\u7684\u4ee3\u7801\u4f4d\u7f6e\uff0c\u800c\u4e0d\u662f\u8fd4\u56de\u5230\u500d\u4fe1\u53f7\u5230\u8fbe\u4e2d\u65ad\u4e86\u7684\u6307\u4ee4\u4f4d\u7f6e<\/li>\n<li>C++\uff0c java\u63d0\u4f9b\u7684\u5f02\u5e38\u673a\u5236\u662f\u8f83\u9ad8\u5c42\u6b21\u7684\uff0c\u662fC\u8bed\u8a00\u7684setjmp\uff0c longjmp\u66f4\u7ed3\u6784\u5316\u7684\u7248\u672c\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3\n<ul>\n<li>\u5f02\u5e38\u63a7\u5236\u6d41\u53d1\u751f\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u4e2a\u4e2a\u5c42\u6b21\uff0c\u662f\u8ba1\u7b97\u673a\u7cfb\u7edf\u4e2d\u63d0\u4f9b\u5e76\u53d1\u7684\u57fa\u672c\u673a\u5236<\/li>\n<li>\u786c\u4ef6\u5c42\u9762\uff0c \u5f02\u5e38\u662f\u6709\u5904\u7406\u5668\u4e2d\u7684\u4e8b\u4ef6 \u89e6\u53d1\u7684\u63a7\u5236\u6d41\u7a81\u53d8\u3002\u63a7\u5236\u6d41\u4f20\u9012\u7ed9\u4e00\u4e2a\u8f6f\u4ef6\u5904\u7406\u7a0b\u5e8f\uff0c\u6b62\u5455\u8fd4\u56de\u7ed9\u88ab\u4e2d\u65ad\u7684\u63a7\u5236\u6d41<\/li>\n<li>\u5f02\u5e38\u7c7b\u578b\uff1a \u4e2d\u65ad \u6545\u969c \u7ec8\u6b62 \u9677\u9631<\/li>\n<li>\u5728\u64cd\u4f5c\u7cfb\u7edf\u5c42\u9762\uff0c \u5185\u6838\u7528ECF \u63d0\u4f9b\u8fdb\u7a0b\u7684\u57fa\u672c\u6982\u5ff5<\/li>\n<li>\u5728\u5e94\u7528\u5c42\u9762\uff0c C\u8bed\u8a00\u4f7f\u7528\u5206\u672c\u5730\u8df3\u8f6c\u6765\u89c4\u907f\u6b63\u5e38\u7684\u8c03\u7528\u3001\u8fd4\u56de\u6808 \u89c4\u5219(try catch \u7b49\u7684\u5b9e\u73b0\u7c7b\u4f3c)<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>\u865a\u62df\u5b58\u50a8\u5668<\/h2>\n<p>TODO<\/p>\n<h2>\u7cfb\u7edf\u7ea7 I\/O<\/h2>\n<blockquote><p>I\/O \u4e3b\u8981\u5728\u4e3b\u5b58\u548c\u5916\u90e8\u8bbe\u5907\u4e4b\u95f4\u62f7\u8d1d\u6570\u636e\u7684\u8fc7\u7a0b\uff0c \u8f93\u5165\u64cd\u4f5c\u662f\u4eceI\/O \u8bbe\u5907\u62f7\u8d1d\u6570\u636e\u5230\u4e3b\u5b58\uff0c \u800c\u8f93\u51fa\u64cd\u4f5c\u662f\u4ece\u4e3b\u5b58\u62f7\u8d1d\u6570\u636e\u5230 I\/O\u8bbe\u5907<\/p><\/blockquote>\n<ol>\n<li>I\/O\n<ul>\n<li>\u662f\u7cfb\u7edf\u4e2d\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\uff0c\u7ecf\u5e38\u4f1a\u9047\u5230I\/O\u548c\u5176\u4ed6\u7cfb\u7edf\u6982\u5ff5\u5faa\u73af\u4f9d\u8d56\u7684\u60c5\u666f\uff1aI\/O \u5728\u8fdb\u7a0b\u7684\u521b\u5efa\u548c\u6267\u884c\u626e\u6f14\u7740\u5173\u952e\u89d2\u8272\uff0c\u53cd\u8fc7\u6765\uff0c\u8fdb\u7a0b\u521b\u5efa\u5728\u4e0d\u540c\u8fdb\u7a0b\u95f4\u7684\u6587\u4ef6\u5171\u4eab\u4e2d\u626e\u6f14\u5173\u952e\u89d2\u8272\u3002<\/li>\n<li>\u6240\u6709\u7684I\/O\u8bbe\u5907\uff0c\u5982\u7f51\u7edc\u3001\u78c1\u76d8\u3001\u7ec8\u7aef \u90fd\u88ab\u6a21\u578b\u5316\u4e3a\u6587\u4ef6\u3002\u800c\u6240\u6709\u7684\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u88ab\u5f53\u505a\u5bf9\u5e94\u7684\u6587\u4ef6\u7684\u8bfb\u5199\u64cd\u4f5c\u3002\u8fd9\u79cd\u5c06\u8bbe\u5907\u4f18\u96c5\u7684\u6620\u5c04\u4e3a\u6587\u4ef6\u7684\u65b9\u5f0f\uff0c\u5141\u8bb8Unix\u5185\u6838\u5f15\u51fa\u4e00\u4e2a\u7b80\u5355\u7684\u4f4e\u7ea7\u7684\u5e94\u7528\u63a5\u53e3\uff0c\u6210\u4e3aUnix I\/O, \u8fd9\u4f7f\u5f97\u6240\u6709\u7684\u8f93\u5165\u548c\u8f93\u51fa\u90fd\u4ee5\u7edf\u4e00\u3001\u4e00\u81f4\u7684\u65b9\u5f0f\u6765\u6267\u884c\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u64cd\u4f5c\n<ul>\n<li>\u6253\u5f00\u6587\u4ef6\uff1a \u7528\u7a0b\u5e8f\u901a\u8fc7 \u8981\u6c42\u5185\u6838\u6253\u5f00\u76f8\u5e94\u7684\u6587\u4ef6\uff0c\u6765\u8bbf\u95ee\u4e00\u4e2aI\/O\u8bbe\u5907\uff0c \u5185\u6838\u8fd4\u56de\u4e00\u4e2a\u5c0f\u7684\u975e\u8d1f\u6570\u7684<strong>\u63cf\u8ff0\u7b26<\/strong>\u3002\u540e\u7eed\u7684\u64cd\u4f5c\u90fd\u901a\u8fc7\u8fd9\u4e2a\u63cf\u8ff0\u7b26<\/li>\n<li>seek: \u6539\u53d8\u5f53\u524d\u7684\u6587\u4ef6\u4f4d\u7f6e, \u5bf9\u4e8e\u6bcf\u4e2a\u6253\u5f00\u7684\u6587\u4ef6\uff0c\u5185\u6838\u4fdd\u6301\u7740\u4e00\u4e2a\u6587\u4ef6\u4f4d\u7f6ek\uff0c\u6807\u5fd7\u7740\u4ece\u6587\u4ef6\u5f00\u5934\u8d77\u59cb\u7684\u5b57\u8282\u504f\u79fb\u91cf\u3002seek\u64cd\u4f5c\u53ef\u4ee5\u663e\u793a\u7684\u8bbe\u5b9a\u4f4d\u7f6e<\/li>\n<li>\u8bfb\u5199\u6587\u4ef6\uff1a \u8bfb\u64cd\u4f5c\u5c31\u4ece\u6587\u4ef6\u62f7\u8d1d n &gt; 0\u4e2a\u5b57\u8282\uff0ck \u4e3a\u5f53\u524d\u6587\u4ef6\u4f4d\u7f6e\uff0c m \u4e3a\u6587\u4ef6\u5927\u5c0f, k+n &gt;=m \u7684\u64cd\u4f5c\uff0c\u4f1a\u89e6\u53d1\u4e00\u4e2aend-of-file(EOF) \u7684\u6761\u4ef6\u3002\u5e94\u7528\u7a0b\u5e8f\u80fd\u591f\u68c0\u6d4b\u5230\u8fd9\u4e2a\u6761\u4ef6\uff0c \u5728\u6587\u4ef6\u7ed3\u5c3e\u5904\u5e76\u6ca1\u6709\u660e\u786e\u7684 \u201cEOF\u201d \u7b26\u53f7\u3002<\/li>\n<li>\u5173\u95ed\u6587\u4ef6\uff1a \u5f53\u5e94\u7528\u5b8c\u6210\u4e86\u6587\u4ef6\u7684\u8bbf\u95ee\u4e4b\u540e\uff0c \u4ed6\u901a\u77e5\u5185\u6838\u5173\u95ed\u8fd9\u4e2a\u6587\u4ef6\u3002\u5185\u6838\u91ca\u653e\u6587\u4ef6\u6253\u5f00\u65f6\u521b\u5efa\u7684\u6570\u636e\u7ed3\u6784\uff0c\u5e76\u5c06\u63cf\u8ff0\u7b26\u6062\u590d\u5230\u53ef\u7528\u7684\u63cf\u8ff0\u7b26\u6c60\u4e2d\u3002\u65e0\u8bba\u4e00\u4e2a\u8fdb\u7a0b\u56e0\u4e3a\u4ec0\u4e48\u539f\u56e0\u7ec8\u6b62\uff0c\u5185\u6838\u90fd\u4f1a\u5173\u95ed\u6240\u6709\u6253\u5f00\u7684\u6587\u4ef6\u5e76\u91ca\u653e\u5b58\u50a8\u5668\u8d44\u6e90\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u5171\u4eab\u6587\u4ef6\n<ul>\n<li>\u63cf\u8ff0\u7b26\u8868(descriptor table)\uff1a<br \/>\n1. \u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u62e5\u6709\u72ec\u7acb\u7684\u63cf\u8ff0\u7b26\u8868<br \/>\n2. \u63cf\u8ff0\u7b26: \u6bcf\u4e2a\u6253\u5f00\u7684\u63cf\u8ff0\u7b26\u7d22\u5f15 \u6587\u4ef6\u8868 \u4e2d\u7684\u4e00\u4e2a\u8868\u9879<\/li>\n<li>\u6587\u4ef6\u8868(file table)\uff1a<br \/>\n1. \u6240\u6709\u7684\u8fdb\u7a0b\u5171\u4eab<br \/>\n2. \u6240\u6709\u7684\u6253\u5f00\u7684\u6587\u4ef6\u7684\u96c6\u5408\u7ec4\u6210\u7684 \u6587\u4ef6\u8868<br \/>\n3. \u6587\u4ef6\u8868\u9879 \u5305\u62ec\u5f53\u524d\u7684\u6587\u4ef6\u7684\u4f4d\u7f6e\u3001\u5f15\u7528\u8ba1\u6570\u3001\u4ee5\u53ca\u4e00\u4e2a\u6307\u5411 v-node \u8868\u4e2d\u5bf9\u5e94\u8868\u9879\u7684\u6307\u9488<br \/>\n4. \u5173\u95ed\u4e00\u4e2a\u63cf\u8ff0\u7b26\u4f1a\u51cf\u5c11\u54cd\u5e94\u7684\u6587\u4ef6\u7684\u8868 \u8868\u9879\u4e2d\u7684\u5f15\u7528\u8ba1\u6570\u3002\u4e3a\u96f6\u65f6\uff0c\u5185\u6838\u4f1a\u5220\u9664\u8868\u9879<\/li>\n<li>v-node \u8868\uff1a<br \/>\n1. \u6240\u6709\u7684\u8fdb\u7a0b\u5171\u4eab<br \/>\n2. \u5305\u542b\u6587\u4ef6\u7684\u5927\u591a\u6570\u4fe1\u606f\u3002\u5305\u542bst_mode, st_size \u7b49\u6210\u5458\uff0c<br \/>\n3. todo\uff0c \u8865\u5145\u6587\u4ef6\u5143\u4fe1\u606f\u7684\u6570\u636e\u7ed3\u6784<\/li>\n<\/ul>\n<\/li>\n<li>\u573a\u666f\n<ul>\n<li>\u6253\u5f00\u540c\u4e00\u4e2afile \u4e24\u6b21\uff0c \u4f1a\u4ea7\u751f\uff0c \u4e24\u4e2a\u6587\u4ef6\u8868\u8868\u9879\uff0c \u6765\u6807\u6ce8\u4e24\u4e2a\u6587\u4ef6\u4e0d\u540c\u7684\u6587\u4ef6\u4f4d\u7f6e\uff0c\u5f15\u7528\u8ba1\u6570\u7b49\u3002<\/li>\n<li>fork\uff1a \u5b50\u8fdb\u7a0b\u4f1acopy \u4e00\u4e2a \u7236\u8fdb\u7a0b\u63cf\u8ff0\u7b26\u8868\u8868\u9879\u7684\u526f\u672c\uff0c\u6307\u5411\u76f8\u540c\u7684 \u6587\u4ef6\u8868\u8868\u9879\u3002\u6240\u4ee5\u5b50\u8fdb\u7a0b\u8ddf\u7236\u8fdb\u7a0b\u5171\u4eab\u540c\u4e00\u4e2a\u6587\u4ef6\u4f4d\u7f6e\uff0c\u589e\u52a0\u6587\u4ef6\u5f15\u7528\u8ba1\u6570\u3002\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"477\" data-height=\"958\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-df9bd7889a5c507b.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/477\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-df9bd7889a5c507b.png\" data-original-width=\"477\" data-original-height=\"958\" data-original-format=\"image\/png\" data-original-filesize=\"110597\" data-image-index=\"10\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">IO.png<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ol start=\"5\">\n<li>\u603b\u7ed3<\/li>\n<\/ol>\n<blockquote><p>unix \u63d0\u4f9b\u4e86\u5c11\u91cf\u7684\u7cfb\u7edf\u7ea7\u522b\u51fd\u6570\uff0c \u4ed6\u4eec\u5141\u8bb8\u5e94\u7528\u7a0b\u5e8f\u6253\u5f00\u3001\u5173\u95ed\u3001\u8bfb\u548c\u5199\u6587\u4ef6\u3001\u63d0\u53d6\u6587\u4ef6\u7684\u5143\u6570\u636e\uff0c\u4ee5\u53ca\u6267\u884cI\/O\u91cd\u5b9a\u5411\u3002Unix\u5185\u6838\u4f7f\u7528\u4e09\u4e2a\u76f8\u5173\u7684\u6570\u636e\u7ed3\u6784\u6765\u8868\u793a\u6253\u5f00\u7684\u6587\u4ef6\u3002\u63cf\u8ff0\u7b26\u8868\u9879\u6307\u5411\u6587\u4ef6\u8868\u8868\u9879\uff0c \u6587\u4ef6\u8868\u8868\u9879\u6307\u5411v-node \u8868\u9879\uff0c\u6bcf\u4e2a\u8fdb\u7a0b\u90fd\u6709\u81ea\u5df1\u7684\u63cf\u8ff0\u7b26\u8868\u9879\uff0c\u6240\u6709\u8fdb\u7a0b\u5171\u4eab \u6587\u4ef6\u8868\u548cv-node\u8868\u3002\u7406\u89e3\u8fd9\u4e9b\u6570\u636e\u7ed3\u6784\uff0c\u5229\u4e8e\uff0c\u7406\u89e3\uff0cfork\uff0c \u5df2\u7ecfI\/O\u91cd\u5b9a\u5411\u7684\u5b9e\u73b0\u3002\u6807\u51c6I\/O\u5e93\u662f\u57fa\u4e8eUnixI\/O\u5b9e\u73b0\u7684\uff0c\u6807\u51c6I\/O\u66f4\u7b80\u5355\uff0c\u4f18\u4e8eunix I\/O\uff0c \u56e0\u4e3a\u5bf9\u6807\u51c6I\/O\u548c\u7f51\u7edc\u6587\u4ef6\u4e00\u4e9b\u76f8\u4e92\u4e0d\u517c\u5bb9\u7684\u95ee\u9898\uff0cUnix I\/O \u66f4\u9002\u5408\u7f51\u7edc\u5e94\u7528\u7a0b\u5e8f<\/p><\/blockquote>\n<h2>\u7f51\u7edc\u7f16\u7a0b<\/h2>\n<blockquote><p>\u7f51\u7edc\u5e94\u7528\u968f\u5904\u53ef\u89c1\uff0cweb\u6d4f\u89c8\u5668\uff0cemail\uff0cwechat\uff0c\u6709\u8da3\u7684\u662f\uff0c\u6240\u6709\u7684\u7f51\u7edc\u5e94\u7528\u90fd\u662f\u57fa\u4e8e\u76f8\u540c\u7684\u57fa\u672c\u7f16\u7a0b\u6a21\u578b\uff0c\u6709\u7740\u76f8\u4f3c\u7684\u6574\u4f53\u903b\u8f91\u7ed3\u6784\uff0c \u5e76\u4e14\u4f9d\u8d56\u76f8\u540c\u7684\u7f16\u7a0b\u63a5\u53e3\u3002<br \/>\n\u7f51\u7edc\u5e94\u7528\u4f9d\u8d56\u4e8e\u8bb8\u591a\u6982\u5ff5\uff1a \u8fdb\u7a0b\u3001\u4fe1\u53f7\u3001\u5b57\u8282\u5e8f\u5217\u3001\u5b58\u50a8\u5668\u6620\u5c04\u4ee5\u53ca\u52a8\u6001\u5206\u914d\u5b58\u50a8\uff0c \u90fd\u626e\u6f14\u8005\u91cd\u8981\u7684\u89d2\u8272<\/p><\/blockquote>\n<ol>\n<li>\u5957\u63a5\u5b57\uff1a<br \/>\n<blockquote><p>\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668 \u6df7\u5408\u4f7f\u7528\u5957\u63a5\u5b57\u63a5\u53e3\u51fd\u6570\u548c Unix I\/O\u51fd\u6570\u6765\u8fdb\u884c\u901a\u8baf\uff0c\u5957\u63a5\u5b57\u51fd\u6570\u5178\u578b\u7684\u662f\u4f5c\u4e3a\u4f1a\u9677\u5165\u5185\u6838\u7684\u7cfb\u7edf\u8c03\u7528\u6765\u5b9e\u73b0\u3002\u5e76\u8c03\u7528\u5404\u79cd\u5185\u6838\u6a21\u5f0f\u548cTCP\/IP \u51fd\u6570<\/p><\/blockquote>\n<ul>\n<li>int socket(int domain, int type, int protocol)<\/li>\n<li>int connect(int sockfd, struct sockaddr, int addrlen): \u5ba2\u6237\u7aef\u901a\u8fc7\u8c03\u7528 connect \u51fd\u6570 \u5efa\u7acb\u670d\u52a1\u7aef\u7684\u8fde\u63a5\uff0c connect\u51fd\u6570\u4f1a\u963b\u585e\uff0c\u4e00\u76f4\u5230\u6210\u529f\u5efa\u7acb\u8fde\u63a5\uff0c\u6216\u662f\u53d1\u751f\u9519\u8bef\uff0c\u5982\u679c\u6210\u529f\uff0c sockfd \u63cf\u8ff0\u7b26\u53ef\u4ee5\u8fdb\u884c\u8bfb\u5199\u4e86\uff0c \u5e76\u4e14\u5f97\u5230\u8fde\u63a5\u5957\u63a5\u5b57\u5bf9(x:y, serv_addr,:serv_addr.sin_port) x\u8868\u793a\u5ba2\u6237\u7aef\u7684ip\u5730\u5740\uff0cy\u8868\u793a\u4e34\u65f6\u7a97\u53e3\uff0c\u4ed6\u552f\u4e00\u786e\u5b9a\u4e86\u5ba2\u6237\u7aef\u4e3b\u673a\u4e0a\u7684\u8fdb\u7a0b<\/li>\n<li>bind(int sockfd, struct sockaddr * my_addr, int addrlen): bind\u51fd\u6570\u544a\u8bc9\u5185\u6838\u5c06my_addr\u4e2d\u7684\u670d\u52a1\u5668\u5957\u63a5\u5b57\u5730\u5740\u548c\u5957\u63a5\u5b57\u63cf\u8ff0\u7b26sockfd\u8054\u7cfb\u8d77\u6765<\/li>\n<li>listen(int sockfd, int backlog): \u670d\u52a1\u5668\u8c03\u7528listen\u51fd\u6570\u544a\u8bc9\u5185\u6838\uff0c \u63cf\u8ff0\u7b26\u662f\u88ab\u670d\u52a1\u5668\u800c\u4e0d\u662f\u5ba2\u6237\u7aef\u4f7f\u7528\u7684\u3002listen\u51fd\u6570\u5c06sockfd \u4ece\u4e00\u4e2a\u4e3b\u52a8\u5957\u63a5\u5b57\u8f6c\u5316\u4e3a\u4e00\u4e2a\u76d1\u542c\u5957\u63a5\u5b57\uff08listening socket\uff09 \u8be5\u5957\u63a5\u5b57\u53ef\u4ee5\u63a5\u53d7\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8fde\u63a5\u8bf7\u6c42\uff0cbacklog \u8868\u793a\u5185\u6838\u5728\u5f00\u59cb\u62d2\u7edd\u8bf7\u6c42\u4e4b\u524d\uff0c \u5e94\u8be5\u653e\u5165\u961f\u5217\u4e2d\u7b49\u5f85\u7684\u672a\u5b8c\u6210\u8fde\u63a5\u7684\u8bf7\u6c42\u7684\u6570\u76ee\u3002backlog\u53c2\u6570\u7684\u786e\u5207\u542b\u4e49\u8981\u6c42\u9000TCPIP\u534f\u8bae\u7684\u7406\u89e3\u3002<\/li>\n<li>accept(int listenfd, struct sockaddr * addr, int * addrlen): accept\u51fd\u6570\u7b49\u5f85\u5ba2\u6237\u7aef\u5230\u8fbelistenfd\u7684\u8fde\u63a5\u8bf7\u6c42\uff0c\u7136\u540e\u5728addr\u4e2d\u586b\u5165\u5ba2\u6237\u7aef\u7684\u5957\u63a5\u5b57\u5730\u5740\uff0c\u5e76\u8fd4\u56de\u4e00\u4e2a\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26(connected descriptor)\u8fd9\u4e2a\u63cf\u8ff0\u7b26 \u53ef\u4ee5\u4f7f\u7528unix I\/O\u8fdb\u884c\u64cd\u4f5c\u4e0e\u5ba2\u6237\u7aef\u901a\u8baf<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"275\" data-height=\"373\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-b505da07663f0971.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/275\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-b505da07663f0971.png\" data-original-width=\"275\" data-original-height=\"373\" data-original-format=\"image\/png\" data-original-filesize=\"21493\" data-image-index=\"11\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">socket_api.png<\/div>\n<\/div>\n<ol start=\"2\">\n<li>\u76d1\u542c\u63cf\u8ff0\u7b26\u548c\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\u7684\u533a\u522b\uff1a\n<ul>\n<li>\u76d1\u542c\u63cf\u8ff0\u7b26: \u662f\u4f5c\u4e3a\u5ba2\u6237\u7aef\u8fde\u63a5\u8bf7\u6c42\u7684\u4e00\u4e2a\u7aef\u70b9\uff0c \u521b\u5efa\u4e00\u6b21\uff0c \u5e76\u5b58\u5728\u4e8e\u670d\u52a1\u5668\u7684\u6574\u4e2a\u751f\u547d\u5468\u671f<\/li>\n<li>\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26: \u662f\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u7aef\u5df2\u7ecf\u5efa\u7acb\u8fde\u63a5\u8d77\u6765\u7684\u4e00\u4e2a\u7aef\u70b9\u3002\u670d\u52a1\u5668\u6bcf\u6b21\u63a5\u53d7\u8bf7\u6c42\u90fd\u4f1a\u521b\u5efa\u4e00\u6b21\uff0c\u4ed6\u53ea\u5b58\u5728\u4e8e\u670d\u52a1\u5668\u4e3a\u4e00\u4e2a\u5ba2\u6237\u7aef\u670d\u52a1\u7684\u8fc7\u7a0b\u4e2d<\/li>\n<li>\u7136\u800c\u533a\u5206\uff1a \u8fd9\u4e24\u8005\uff0c \u88ab\u8bc1\u660e\u662f\u5f88\u6709\u7528\u7684\u3002\u56e0\u4e3a\u4ed6\u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u7b80\u5386\u5e76\u53d1\u670d\u52a1\u5668\uff0c\u4ed6\u80fd\u591f\u540c\u65f6\u5904\u7406\u8bb8\u591a\u5ba2\u6237\u7aef\u8fde\u63a5\uff0c\u4f8b\u5982\uff0c\u6bcf\u4e00\u4e2a\u8bf7\u6c42\u5230\u8fbe\u76d1\u542c\u63cf\u8ff0\u7b26\u65f6\uff0c \u6211\u4eec\u53ef\u4ee5fork\u4e00\u4e2a\u8fdb\u7a0b\u53bb\u5904\u7406\uff0c\u4ed6\u53ef\u4ee5\u901a\u8fc7\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\u5bf9\u5ba2\u6237\u7aef\u8fdb\u884c\u901a\u8baf\uff0c<\/li>\n<\/ul>\n<\/li>\n<li>HTTP\n<ul>\n<li>Web\u670d\u52a1\u5668\uff0c web\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u4e4b\u95f4\u7684\u4ea4\u4e92\u662f\u4e00\u4e2a\u57fa\u4e8e\u6587\u672c\u5e94\u7528\u7ea7\u534f\u8bae\uff0c\u53eb\u505aHTTP\uff0c \u5176\u5185\u5bb9\u662f\u4e00\u4e2a\u4e0eMime\uff08multipurpose internet Mail ExtensI\/Ons \u591a\u7528\u9014\u7f51\u9645\u90ae\u4ef6\u6269\u5145\u534f\u8bae\uff09\u7c7b\u578b\u5173\u8054\u7684\u5b57\u8282\u5e8f\u5217\u3002<br \/>\n<table>\n<thead>\n<tr>\n<th>MIME \u7c7b\u578b<\/th>\n<th>\u63cf\u8ff0<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>text\/html<\/td>\n<td>HTML \u9875\u9762<\/td>\n<\/tr>\n<tr>\n<td>text\/plain<\/td>\n<td>\u65e0\u683c\u5f0f\u6587\u672c<\/td>\n<\/tr>\n<tr>\n<td>applicatI\/On\/postscript<\/td>\n<td>postscript \u6587\u6863<\/td>\n<\/tr>\n<tr>\n<td>image\/gif<\/td>\n<td>gif \u683c\u5f0f\u7f16\u7801\u7684\u56fe\u7247<\/td>\n<\/tr>\n<tr>\n<td>image\/jpeg<\/td>\n<td>jpeg\u683c\u5f0f\u7f16\u7801\u7684\u56fe\u7247<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<ul>\n<li>\u670d\u52a1\u52a8\u6001\u5185\u5bb9\uff1a \u5ba2\u6237\u7aef\u5982\u4f55\u5c06\u7a0b\u5e8f\u53c2\u6570\u4f20\u9012\u7ed9\u670d\u52a1\u5668, \u670d\u52a1\u5668\u5982\u4f55\u5c06\u8fd9\u4e9b\u53c2\u6570\u4f20\u9012\u7ed9 \u4ed6\u6240\u521b\u5efa\u7684\u5b50\u8fdb\u7a0b\uff1f \u5b50\u8fdb\u7a0b \u5c06\u4ed6\u7684\u8f93\u51fa\u53d1\u9001\u5230\u54ea\u91cc\uff1f\u4e00\u4e2a\u6210\u4e3aCGI(common Gateway Interface) \u901a\u7528\u7f51\u5173\u63a5\u53e3\u7684\u5b9e\u9645\u6807\u51c6\u89e3\u51b3\u4e86\u8fd9\u4e9b\u95ee\u9898\u3002\n<ol>\n<li>\u5ba2\u6237\u7aef\u5982\u4f55\u5c06\u7a0b\u5e8f\u53c2\u6570\u4f20\u9012\u7ed9\u670d\u52a1\u5668: ?, &amp;\u5206\u5272\u5f00\u6765<\/li>\n<li>\u670d\u52a1\u5668\u5982\u4f55\u5c06\u53c2\u6570\u4f20\u9012\u7ed9 \u5b50\u8fdb\u7a0b\uff1a CGI\u8bbe\u5b9a\u73af\u5883\u53d8\u91cf QUERY_STRING=name=xx&amp;age=xxx, \u5b50\u8fdb\u7a0b\u53ef\u4ee5\u901a\u8fc7getenv\u51fd\u6570\u83b7\u5f97<\/li>\n<\/ol>\n<div class=\"_2Uzcx_\"><button class=\"VJbwyy\" type=\"button\" aria-label=\"\u590d\u5236\u4ee3\u7801\"><i class=\"anticon anticon-copy\" aria-label=\"icon: copy\"><\/i><\/button><\/p>\n<pre class=\"line-numbers  language-ruby\"><code class=\"  language-ruby\"><span class=\"token operator\">|<\/span> \u73af\u5883\u53d8\u91cf <span class=\"token operator\">|<\/span> \u63cf\u8ff0     <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token punctuation\">:<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">-<\/span> <span class=\"token operator\">|<\/span> <span class=\"token punctuation\">:<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">--<\/span><span class=\"token operator\">-<\/span> <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token constant\">SERVER_PORT<\/span> <span class=\"token operator\">|<\/span> \u7236\u8fdb\u7a0b\u76d1\u542c\u7684port<span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token constant\">QUERY_STRING<\/span> <span class=\"token operator\">|<\/span> url \u53c2\u6570<span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span><span class=\"token constant\">REQUEST_METHOD<\/span> <span class=\"token operator\">|<\/span> get <span class=\"token keyword\">or<\/span> post etc       <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span><span class=\"token constant\">REMOTE_HOST<\/span>       <span class=\"token operator\">|<\/span> \u5ba2\u6237\u7aef\u57df\u540d   <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token constant\">REMOTE_ADDR<\/span><span class=\"token operator\">|<\/span> \u5ba2\u6237\u7aefip    <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token constant\">CONTENT_TYPE<\/span> <span class=\"token operator\">|<\/span> \u8bf7\u6c42\u4f53\u7684<span class=\"token constant\">MIME<\/span>       <span class=\"token operator\">|<\/span>\r\n<span class=\"token operator\">|<\/span> <span class=\"token constant\">CONTENT_LENGTH<\/span> <span class=\"token operator\">|<\/span> \u8bf7\u6c42\u4f53\u7684\u5927\u5c0f       <span class=\"token operator\">|<\/span>\r\n<\/code><\/pre>\n<\/div>\n<ol start=\"3\">\n<li>\u5b50\u8fdb\u7a0b\u5c06\u8f93\u51fa\u5230\u54ea\u91cc\uff1f \u4e00\u4e2aCGI\u7a0b\u5e8f\u5c06\u52a8\u6001\u5185\u5bb9\u53d1\u9001\u5230\u6807\u51c6\u8f93\u51fa\uff0c \u5728\u5b50\u8fdb\u7a0b\u52a0\u8f7d\u5e76\u8fd0\u884cCGI\u7a0b\u5e8f\u4e4b\u524d\uff0c \u4f7f\u7528unix dup21\u5c06\u6807\u51c6\u8f93\u51fa\u91cd\u5b9a\u5411\u5230\u5ba2\u6237\u7aef\u76f8\u5173\u7684\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\u3002 \u56e0\u4e3aCGI\u7a0b\u5e8f\u5c0f\u5165\u5230\u6807\u51c6\u8f93\u51fa\u7684\u4e1c\u897f\uff0c\u4f1a\u76f4\u63a5\u9001\u5230\u5ba2\u6237\u7aef\u3002<\/li>\n<\/ol>\n<\/li>\n<\/ul>\n<h2>\u5e76\u53d1\u7f16\u7a0b<\/h2>\n<blockquote><p>\u903b\u8f91\u63a7\u5236\u6d41\u5728\u65f6\u95f4\u4e0a\u91cd\u53e0\uff0c\u5c31\u79f0\u4e3a\u5e76\u53d1\u3002\uff08concurrency\uff09\u51fa\u73b0\u5728\u8ba1\u7b97\u673a\u7cfb\u7edf\u7684\u591a\u4e2a\u5c42\u9762\u4e0a\uff0c \u786c\u4ef6\u5f02\u5e38\u5904\u7406\uff0c \u8fdb\u7a0b\u548cUnix\u4fe1\u53f7\u5904\u7406\u7a0b\u5e8f<\/p><\/blockquote>\n<ol>\n<li>\u5e94\u7528\u5c42\u9762\u4e0a\u7684\u5e76\u53d1 \u5728\u4e0b\u9762\u7684\u573a\u666f\u975e\u5e38\u6709\u7528\uff1a\n<ul>\n<li>\u8bbf\u95ee\u6162\u901fI\/O\u8bbe\u5907\uff0c \u5e94\u7528\u9700\u8981\u7b49\u5f85I\/O\u8bbe\u5907\u7684\u6570\u636e\u5230\u8fbe\u65f6\u5019\uff0c\u5185\u6838\u4f1a\u8fd0\u884c\u5176\u4ed6\u8fdb\u7a0b\uff0c\u4f7f\u5f97CPU\u4fdd\u6301\u7e41\u5fd9\u3002\u6bcf\u4e2a\u5e94\u7528\u90fd\u53ef\u4ee5\u6309\u7167\u7c7b\u4f3c\u7684\u65b9\u5f0f\uff0c\u901a\u8fc7\u4ea4\u66ff\u6267\u884cI\/O\u8bf7\u6c42\u548c\u5176\u4ed6\u6709\u7528\u7684\u5de5\u4f5c\u8fdb\u884c\u5e76\u53d1<\/li>\n<li>\u670d\u52a1\u591a\u4e2a\u7f51\u7edc\u5ba2\u6237\u7aef\uff1a \u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u521b\u5efa\u521b\u5efa\u4e00\u4e2a\u5355\u72ec\u7684\u63a7\u5236\u6d41\uff0c\u5141\u8bb8\u670d\u52a1\u5668\u540c\u65f6\u670d\u52a1\u591a\u4e2a\u5ba2\u6237\u7aef\u670d\u52a1\u3002\u907f\u514d\u6162\u901fI\/O\u64cd\u4f5c\u72ec\u5360\u670d\u52a1\u5668<\/li>\n<li>\u591a\u4e2a\u5185\u6838\u673a\u5668\u4e0a\u7684\u5e76\u884c\u8ba1\u7b97<\/li>\n<\/ul>\n<\/li>\n<li>\u64cd\u4f5c\u7cfb\u7edf\u63d0\u4f9b\u5e76\u53d1\u7684\u57fa\u672c\u65b9\u6cd5\uff1a\n<ul>\n<li>\u8fdb\u7a0b\uff1a \u6bcf\u4e2a\u903b\u8f91\u63a7\u5236\u6d41\u90fd\u662f\u4e00\u4e2a\u8fdb\u7a0b\uff0c \u6709\u5185\u6838\u8fdb\u884c\u7ef4\u62a4\u8c03\u5ea6\uff0c\u8fdb\u7a0b\u95f4\u901a\u8baf\u901a\u8fc7\u4f7f\u7528\u663e\u793a\u7684\u8fdb\u7a0b\u95f4\u901a\u8baf\uff08IPC\uff09 \u673a\u5236<\/li>\n<li>I\/O\u591a\u8def\u590d\u7528\uff1a \u5e94\u7528\u7a0b\u5e8f\u5728\u4e00\u4e2a\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u663e\u793a\u7684\u8c03\u5ea6\u4ed6\u4eec\u81ea\u5df1\u7684\u903b\u8f91\u63a7\u5236\u6d41\uff0c\u903b\u8f91\u6d41\u88ab\u6a21\u578b\u5316\u4e3a\u72b6\u6001\u673a\uff0c\u6570\u636e\u8fbe\u5230\u6587\u4ef6\u63cf\u8ff0\u7b26\u540e\uff0c\u4e3b\u7a0b\u5e8f\u663e\u793a\u7684\u4ece\u4e00\u4e2a\u72b6\u6001\u8f6c\u6362\u5230\u53e6\u4e00\u4e2a\u72b6\u6001\uff0c\u56e0\u4e3a\u7a0b\u5e8f\u662f\u4e00\u4e2a\u5355\u72ec\u7684\u8fdb\u7a0b\uff0c\u6240\u4ee5\u6240\u6709\u7684\u6d41\u90fd\u5171\u4eab\u4e00\u4e2a\u5730\u5740\u7a7a\u95f4<\/li>\n<li>\u7ebf\u7a0b\uff1a \u662f\u8fd0\u884c\u5728\u4e00\u4e2a\u5355\u4e00\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u7684\u903b\u8f91\u6d41\uff0c\u60f3\u8fdb\u7a0b\u6d41\u4e00\u6837\u6709\u5185\u6838\u8fdb\u884c\u8c03\u5ea6\uff0c\u50cfI\/O\u591a\u8def\u590d\u7528\u4e00\u6837 \u5171\u4eab\u540c\u4e00\u4e2a\u865a\u62df\u5730\u5740\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u57fa\u4e8e\u8fdb\u7a0b\u7684\u5e76\u53d1\u7f16\u7a0b\uff1a\n<ol>\n<li>\u670d\u52a1\u5668 \u63a5\u53d7\u8bf7\u6c42\u4e4b\u540e\uff0c\u7236\u8fdb\u7a0bfork\u4e00\u4e2a\u5b50\u8fdb\u7a0b\u3002\u5b50\u8fdb\u7a0b\u83b7\u5f97\u670d\u52a1\u5668\u63cf\u8ff0\u7b26\u8868\u7684\u5b8c\u6574\u62f7\u8d1d\u3002<\/li>\n<li>\u5b50\u8fdb\u7a0b\u5173\u95ed\u4ed6\u62f7\u8d1d\u7684\u76d1\u542c\u63cf\u8ff0\u7b26\uff0c \u7236\u8fdb\u7a0b\u5173\u95ed\u4ed6\u7684\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\uff0c \u56e0\u4e3a\u5b50\u7236\u5b50\u8fdb\u7a0b\u63cf\u8ff0\u7b26\u6307\u5411\u540c\u4e00\u4e2a\u6587\u4ef6\u8868\u8868\u9879\uff0c\u6240\u4ee5\u7236\u8fdb\u7a0b\u5173\u95ed\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26 \u662f\u81f3\u5173\u91cd\u8981\uff0c \u5426\u5219\uff0c \u5c06\u6c38\u8fdc\u4e0d\u4f1a\u91ca\u653e\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\u7684\u6587\u4ef6\u8868\u6761\u76ee\uff0c\u7531\u6b64\u5f15\u53d1\u7684\u5b58\u50a8\u5668\u6cc4\u9732 \u5c06\u6700\u7ec8\u6d88\u8017\u5c3d\u6240\u6709\u7684\u5b58\u50a8\u5668\uff0c\u5bfc\u81f4\u7cfb\u7edf\u5d29\u6e83 (\u4e3a\u4ec0\u4e48\u6ca1\u6709\u8bf4 \u5b50\u8fdb\u7a0b\u5173\u95ed \u76d1\u542c\u63cf\u8ff0\u7b26\u5462\uff1f\u4ee5\u4e3a\u5b50\u8fdb\u7a0b\u603b\u662f\u65e9\u4e8e \u7236\u8fdb\u7a0b\u6b7b\u6389\uff0c\u6240\u4ee5\u603b\u662f\u53ef\u4ee5\u91ca\u653e\uff1f)<\/li>\n<li>\u7236\u8fdb\u7a0b\u56de\u6536\u5b50\u8fdb\u7a0b<\/li>\n<li>\u4f18\u52a3\uff1a\n<ul>\n<li>\u975e\u5e38\u6e05\u6670\u7684\u5e76\u53d1\u6a21\u578b\uff1a \u5171\u4eab\u6587\u4ef6\u8868\uff0c\u4e0d\u5171\u4eab\u7528\u6237\u5730\u5740\u7a7a\u95f4\u3002<\/li>\n<li>\u72ec\u7acb\u7684\u5730\u5740\u7a7a\u95f4\u5bb9\u6613 \u4f7f\u5f97\u8fdb\u7a0b\u5171\u4eab\u72b6\u6001\u4fe1\u606f\u53d8\u5f97\u66f4\u52a0\u56f0\u96be\u3002 \u4e3a\u4e86\u5171\u4eab\u4fe1\u606f\uff0c\u9700\u8981\u4f7f\u7528IPC\u673a\u5236\uff0c 2. \u6162\uff0c \u8fdb\u7a0b\u63a7\u5236\u548cIPC \u7684\u5f00\u9500\u592a\u9ad8\n<div class=\"image-package\">\n<div class=\"image-container\">\n<div class=\"image-container-fill\"><\/div>\n<div class=\"image-view\" data-width=\"407\" data-height=\"768\"><img decoding=\"async\" class=\"\" src=\"https:\/\/upload-images.jianshu.io\/upload_images\/7522588-4bbeb18475d87dc6.png?imageMogr2\/auto-orient\/strip|imageView2\/2\/w\/407\/format\/webp\" data-original-src=\"\/\/upload-images.jianshu.io\/upload_images\/7522588-4bbeb18475d87dc6.png\" data-original-width=\"407\" data-original-height=\"768\" data-original-format=\"image\/png\" data-original-filesize=\"75771\" data-image-index=\"12\" \/><\/div>\n<\/div>\n<div class=\"image-caption\">prcess_base.png<\/div>\n<\/div>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<\/li>\n<li>I\/O \u591a\u8def\u590d\u7528\u5e76\u53d1\u7f16\u7a0b\uff1a\n<ul>\n<li>\u7528\u6765\u505a \u5e76\u53d1\u4e8b\u4ef6\u9a71\u52a8(event-driven) \u7a0b\u5e8f\u7684\u57fa\u7840\uff0c \u5728\u4e8b\u4ef6\u9a71\u52a8\u7a0b\u5e8f\u4e2d\uff0c\u6d41\u662f\u56e0\u4e3a\u67d0\u79cd\u4e8b\u4ef6\u800c\u524d\u8fdb\u7684\u3002<\/li>\n<li>I\/O\u5e76\u53d1\u6a21\u578b\u4e2d\u7684 \u903b\u8f91\u6d41\u6a21\u578b \u8f6c\u6362\u4e3a\u72b6\u6001\uff0c \u4e0d\u4e25\u683c\u7684\u8bf4\uff0c \u4e00\u4e2a\u72b6\u6001\u673a\u5c31\u662f\u4e00\u7ec4\u72b6\u6001(state)\uff0c \u8f93\u5165\u4e8b\u4ef6(input event)\uff0c \u548c\u8f6c\u79fb(transitI\/On) \u5176\u4e2d\u8f6c\u79fb\u5c31\u662f\u5c06\u8f93\u5165\u4e8b\u4ef6\u548c\u72b6\u6001\u6620\u5c04\u5230\u53e6\u4e00\u4e2a\u72b6\u6001\u3002<\/li>\n<li>\u81ea\u5faa\u73af\uff08self loop\uff09 \u662f\u540c\u4e00\u4e2a\u8f93\u5165\u548c\u8f93\u51fa\u72b6\u6001\u4e4b\u95f4\u7684\u8f6c\u79fb\u3002<\/li>\n<li>\u670d\u52a1\u5668\u4f7f\u7528I\/O \u591a\u8def\u590d\u7528\u3002 select \u51fd\u6570\u68c0\u6d4b\u8f93\u5165\u4e8b\u4ef6\u7684\u53d1\u751f\u3002 \u5f53\u4e00\u4e2a\u5df2\u8fde\u63a5\u63cf\u8ff0\u7b26\u51c6\u5907\u597d\u8bfb\u53d6\u7684\u65f6\u5019\uff0c\u670d\u52a1\u5668\u4f5c\u4e3a\u54cd\u5e94\u7684\u72b6\u6001\u673a \u6267\u884c\u8f6c\u79fb<\/li>\n<li>\u4f18\u52a3\uff1a\n<ul>\n<li>\u4f18\u70b9\uff1a<br \/>\n1. \u6bd4\u57fa\u4e8e\u8fdb\u7a0b\u8bbe\u8ba1\u7684\u8bbe\u8ba1\u7ed9\u4e86\u7a0b\u5e8f\u5458\u66f4\u591a\u7684\u5bf9\u7a0b\u5e8f\u884c\u4e3a\u7684\u63a7\u5236\uff0c<br \/>\n2. \u4e8b\u4ef6\u9a71\u52a8\u670d\u52a1\u5668\u8fd0\u884c\u5728\u5355\u4e00\u7684\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u4e2d\uff0c \u56e0\u4e3a\u6bcf\u4e2a\u903b\u8f91\u63a7\u5236\u6d41\u90fd\u80fd\u5426\u8bbf\u95ee\u8be5\u8fdb\u7a0b\u7684\u5168\u90e8\u5730\u5740\u7a7a\u95f4\u3002\u8fd9\u662f\u7684\u5728\u6d41\u4e4b\u95f4 \u5171\u4eab\u6570\u636e\u53d8\u5f97\u5bb9\u6613\u3002<br \/>\n3. \u8c03\u8bd5\u8d77\u6765\u53d8\u5f97\u7b80\u5355\uff0c\u5c31\u50cf\u987a\u5e8f\u7a0b\u5e8f\u4e00\u6837<br \/>\n4. \u4e8b\u4ef6\u9a71\u52a8 \u5e38\u5e38\u6bd4\u57fa\u4e8e\u8fdb\u7a0b\u7684\u8bbe\u8ba1\u7684\u8981\u9ad8\u6548\u7684\u591a\uff0c\u56e0\u4e3a\u4ed6\u4eec\u4e0d\u9700\u8981\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u7684\u8c03\u5ea6<\/li>\n<li>\u7f3a\u70b9\uff1a<br \/>\n1. \u7f16\u7801\u590d\u6742\uff0c \u4e0d\u5e78\u7684\u662f\uff0c \u968f\u7740\u5e76\u53d1\u7c92\u5ea6\u7684\u51cf\u5c0f\uff0c \u590d\u6742\u6027\u8fd8\u4f1a\u4e0a\u5347\uff0c<br \/>\n2. \u4e0d\u80fd\u591f\u5145\u5206\u5229\u7528\u591a\u6838\u5904\u7406\u5668<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<li>\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u6a21\u578b\uff1a\n<ol>\n<li>\u6982\u5ff5:\n<ul>\n<li>\u662f\u8fd0\u884c\u5728\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u7684\u903b\u8f91\u6d41\uff0c \u6709\u5185\u6838\u81ea\u52a8\u8c03\u5ea6\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u90fd\u6709\u81ea\u5df1\u7684\u7ebf\u7a0b\u4e0a\u4e0b\u6587\uff0c \u5305\u62ec\u4e00\u4e2a\u552f\u4e00\u7684\u6574\u6570\u7ebf\u7a0bID(thread ID TID)\uff0c \u6808\uff0c\u6808\u6307\u9488\uff0c\u7a0b\u5e8f\u8ba1\u6570\u5668\uff0cetc\uff0c<\/li>\n<li>\u57fa\u4e8e\u7ebf\u7a0b\u7684\u5e76\u53d1\u6a21\u578b\u662f\u7ed3\u5408 \u8fdb\u7a0b\u3001I\/O\u591a\u8def\u590d\u7528\u6d41\u7684\u7279\u6027\u3002 \u540c\u8fdb\u7a0b\u4e00\u6837\u5185\u6838\u81ea\u52a8\u8c03\u5ea6\uff0c \u540cI\/O\u590d\u7528\u4e00\u6837\uff0c \u591a\u4e2a\u7ebf\u7a0b\u8fd0\u884c\u5728\u5355\u4e00\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\uff0c \u56e0\u6b64\u5171\u4eab\u76f8\u540c\u7684\u865a\u62df\u5730\u5740\u7a7a\u95f4\uff0c \u4ee3\u7801\uff0c\u6570\u636e\u7b49<\/li>\n<li>\u4e3b\u7ebf\u7a0b: \u6bcf\u4e2a\u8fdb\u7a0b\u5f00\u59cb\u751f\u547d\u5468\u671f\u65f6\u5019\u662f\u5355\u4e00\u7ebf\u7a0b\uff0c\u8fd9\u4e2a\u7ebf\u7a0b\u6210\u4e3a\u4e3b\u7ebf\u7a0b\u3002 \u7136\u540e\u521b\u5efa\u5bf9\u7b49\u7ebf\u7a0b\u3002 \u8fd9\u4e2a\u65f6\u95f4\u70b9\u5f00\u59cb\uff0c\u4e24\u4e2a\u7ebf\u7a0b\u5f00\u59cb\u5e76\u53d1\u7684\u6267\u884c\u3002\u7136\u540e\u88ab \u7cfb\u7edf\u8fdb\u884c\u8c03\u5ea6\u3002<\/li>\n<li>\u4e0e\u8fdb\u7a0b\u7684\u4e0d\u540c\uff1a \u7ebf\u7a0b\u7684\u4e0a\u7ebf\u6587\u8981\u6bd4\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u5c0f\u5f97\u591a\u3002\u4e0d\u4e25\u683c\u6309\u7167\u7236\u5b50\u5c42\u6b21\u6765\u7ec4\u7ec7\u3002\u548c\u4e00\u4e2a\u8fdb\u7a0b\u76f8\u5173\u7684\u7ebf\u7a0b\u7ec4\u6210\u4e00\u4e2a\u5bf9\u7b49\uff08\u7ebf\u7a0b\u6c60\uff09\uff0c\u4e3b\u7ebf\u7a0b\u548c\u5176\u4ed6\u7ebf\u7a0b\u7684\u533a\u522b\u5728\u4e8e\u4ed6\u603b\u662f\u8fdb\u7a0b\u4e2d\u7684\u7b2c\u4e00\u4e2a\u8fd0\u884c\u7684\u7ebf\u7a0b\uff0c\u5bf9\u7b49\u7ebf\u7a0b\u6c60\u7684\u6982\u5ff5\u7684\u4e3b\u8981\u5f71\u54cd\u662f\uff1a \u4e00\u4e2a\u7ebf\u7a0b\u53ef\u4ee5\u6740\u6b7b\u4ed6\u7684\u4efb\u4f55\u5bf9\u7b49\u8fdb\u7a0b\uff0c\u6216\u8005\u7b49\u5f85\u4ed6\u7684\u4efb\u4f55\u5bf9\u7b49\u7ebf\u7a0b\u7ec8\u6b62\uff0c\u6bcf\u4e2a\u5bf9\u7b49\u7ebf\u7a0b\u90fd\u80fd\u8bfb\u5199\u76f8\u540c\u7684\u5171\u4eab\u6570\u636e\u3002<\/li>\n<li>\u7ed3\u5408\u3001\u5206\u79bb\uff1a \u5728\u4efb\u4f55\u4e00\u4e2a\u65f6\u95f4\u70b9\uff0c \u7ebf\u7a0b\u662f\u53ef\u7ed3\u5408\u7684\uff0c \u6216\u8005\u662f\u5206\u79bb\u7684\u3002\u4e00\u4e2a\u53ef\u7ed3\u5408\u7684\u7ebf\u7a0b\u80fd\u591f\u88ab\u5176\u4ed6\u7ebf\u7a0b\u6536\u56de\u5176\u4ed6\u8d44\u6e90\u548c\u6740\u6b7b\u3002\u5728\u88ab\u5176\u4ed6\u7ebf\u7a0b\u56de\u6536\u4e4b\u524d\uff0c\u4ed6\u7684\u5b58\u50a8\u5668\u8d44\u6e90\u662f\u6ca1\u6709\u500d\u91ca\u653e\u7684\u3002\u76f8\u53cd\u3002 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class=\"image-caption\">thread_base.png<\/div>\n<\/div>\n<ol start=\"2\">\n<li>\u591a\u7ebf\u7a0b\u5e8f\u4e2d\u7684\u5171\u4eab\u53d8\u91cf\n<ul>\n<li>\u7ebf\u7a0b\u5b58\u50a8\u6a21\u578b\uff1a \u7ebf\u7a0b\u90fd\u6709\u81ea\u5df1\u7684\u7ebf\u7a0b\u4e0a\u4e0b\u6587\uff0c \u7ebf\u7a0bID\uff0c \u6808\uff0c \u6808\u6307\u9488\uff0c \u7a0b\u5e8f\u8ba1\u6570\u5668\uff0c\u6761\u4ef6\u7801 \u548c\u901a\u7528\u7684\u5bc4\u5b58\u5668\uff0c\u6bcf\u4e2a\u7ebf\u7a0b\u548c\u5176\u4ed6\u7ebf\u7a0b\u4e00\u8d77\u5171\u4eab\u8fdb\u7a0b\u4e0a\u4e0b\u6587\u4e2d\u7684\u5176\u4ed6\u90e8\u5206\uff0c\u5305\u62ec\u7528\u6237\u865a\u62df\u5730\u5740\u7a7a\u95f4\uff08\u5236\u5ea6\u6587\u672c\u4ee3\u7801\uff0c 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\u4f7f\u5f97\u7f16\u7a0b\u8d77\u6765\u6bd4\u8f83\u56f0\u96be\uff09<\/li>\n<li>\u65e0\u8bba\u90a3\u79cd\u5e76\u53d1\u673a\u5236\uff0c\u540c\u6b65\u5bf9\u5171\u4eab\u6570\u636e\u7684\u8bbf\u95ee\u90fd\u662f\u4e00\u4e2a\u56f0\u96be\u7684\u95ee\u9898<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u539f\u6587\u5730\u5740 &nbsp; 2017.12.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"colormag_page_container_layout":"default_layout","colormag_page_sidebar_layout":"default_layout","footnotes":""},"categories":[],"tags":[119],"class_list":["post-4286","post","type-post","status-publish","format-standard","hentry","tag-03-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4286","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/comments?post=4286"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/4286\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=4286"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=4286"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=4286"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}