{"id":2800,"date":"2019-01-31T18:51:31","date_gmt":"2019-01-31T10:51:31","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=2800"},"modified":"2019-01-31T18:51:31","modified_gmt":"2019-01-31T10:51:31","slug":"%e6%80%bb%e7%bb%93%e4%ba%86%e6%89%8d%e7%9f%a5%e9%81%93%ef%bc%8c%e5%8e%9f%e6%9d%a5channel%e6%9c%89%e8%bf%99%e4%b9%88%e5%a4%9a%e7%94%a8%e6%b3%95%ef%bc%81","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/2800","title":{"rendered":"\u603b\u7ed3\u4e86\u624d\u77e5\u9053\uff0c\u539f\u6765channel\u6709\u8fd9\u4e48\u591a\u7528\u6cd5\uff01"},"content":{"rendered":"<div id=\"meta_content\" class=\"rich_media_meta_list\">\u8fd9\u7bc7\u6587\u7ae0\u603b\u7ed3\u4e86channel\u768410\u79cd\u5e38\u7528\u64cd\u4f5c\uff0c\u4ee5\u4e00\u4e2a\u66f4\u9ad8\u7684\u89c6\u89d2\u770b\u5f85channel\uff0c\u4f1a\u7ed9\u5927\u5bb6\u5e26\u6765\u5bf9channel\u66f4\u5168\u9762\u7684\u8ba4\u8bc6\u3002<\/div>\n<div id=\"js_content\" class=\"rich_media_content \">\n<p>\u5728\u4ecb\u7ecd10\u79cd\u64cd\u4f5c\u524d\uff0c\u5148\u7b80\u8981\u4ecb\u7ecd\u4e0bchannel\u7684\u4f7f\u7528\u573a\u666f\u3001\u57fa\u672c\u64cd\u4f5c\u548c\u6ce8\u610f\u4e8b\u9879\u3002<\/p>\n<h3>channel\u7684\u4f7f\u7528\u573a\u666f<\/h3>\n<p>\u628achannel\u7528\u5728<strong>\u6570\u636e\u6d41\u52a8\u7684\u5730\u65b9<\/strong>\uff1a<\/p>\n<ol class=\"list-paddingleft-2\">\n<li>\u6d88\u606f\u4f20\u9012\u3001\u6d88\u606f\u8fc7\u6ee4<\/li>\n<li>\u4fe1\u53f7\u5e7f\u64ad<\/li>\n<li>\u4e8b\u4ef6\u8ba2\u9605\u4e0e\u5e7f\u64ad<\/li>\n<li>\u8bf7\u6c42\u3001\u54cd\u5e94\u8f6c\u53d1<\/li>\n<li>\u4efb\u52a1\u5206\u53d1<\/li>\n<li>\u7ed3\u679c\u6c47\u603b<\/li>\n<li>\u5e76\u53d1\u63a7\u5236<\/li>\n<li>\u540c\u6b65\u4e0e\u5f02\u6b65<\/li>\n<li>\u2026<\/li>\n<\/ol>\n<h3>channel\u7684\u57fa\u672c\u64cd\u4f5c\u548c\u6ce8\u610f\u4e8b\u9879<\/h3>\n<p>channel\u5b58\u5728<code>3\u79cd\u72b6\u6001<\/code>\uff1a<\/p>\n<ol class=\"list-paddingleft-2\">\n<li>nil\uff0c\u672a\u521d\u59cb\u5316\u7684\u72b6\u6001\uff0c\u53ea\u8fdb\u884c\u4e86\u58f0\u660e\uff0c\u6216\u8005\u624b\u52a8\u8d4b\u503c\u4e3a<code>nil<\/code><\/li>\n<li>active\uff0c\u6b63\u5e38\u7684channel\uff0c\u53ef\u8bfb\u6216\u8005\u53ef\u5199<\/li>\n<li>closed\uff0c\u5df2\u5173\u95ed\uff0c<strong>\u5343\u4e07\u4e0d\u8981\u8bef\u8ba4\u4e3a\u5173\u95edchannel\u540e\uff0cchannel\u7684\u503c\u662fnil<\/strong><\/li>\n<\/ol>\n<p>channel\u53ef\u8fdb\u884c<code>3\u79cd\u64cd\u4f5c<\/code>\uff1a<\/p>\n<ol class=\"list-paddingleft-2\">\n<li>\u8bfb<\/li>\n<li>\u5199<\/li>\n<li>\u5173\u95ed<\/li>\n<\/ol>\n<p>\u628a\u8fd93\u79cd\u64cd\u4f5c\u548c3\u79cdchannel\u72b6\u6001\u53ef\u4ee5\u7ec4\u5408\u51fa<code>9\u79cd\u60c5\u51b5<\/code>\uff1a<\/p>\n<figure><img decoding=\"async\" class=\"img_loading\" title=\"\" src=\"data:image\/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVQImWNgYGBgAAAABQABh6FO1AAAAABJRU5ErkJggg==\" crossorigin=\"anonymous\" data-ratio=\"0.246\" data-src=\"https:\/\/mmbiz.qpic.cn\/mmbiz_png\/NjvicFU9uBtY5gia5vF9AakKG4X6jW6LPCd9iaVeguia36j3V6gjsbG2y9bVfpHWJwgkbyott7x9lapW9RFBDxD36A\/640?wx_fmt=png\" data-type=\"png\" data-w=\"1000\" \/><\/figure>\n<p>\u5bf9\u4e8enil\u901a\u9053\u7684\u60c5\u51b5\uff0c\u4e5f\u5e76\u975e\u5b8c\u5168\u9075\u5faa\u4e0a\u8868\uff0c<strong>\u67091\u4e2a\u7279\u6b8a\u573a\u666f<\/strong>\uff1a\u5f53<code>nil<\/code>\u7684\u901a\u9053\u5728<code>select<\/code>\u7684\u67d0\u4e2a<code>case<\/code>\u4e2d\u65f6\uff0c\u8fd9\u4e2acase\u4f1a\u963b\u585e\uff0c\u4f46\u4e0d\u4f1a\u9020\u6210\u6b7b\u9501\u3002<\/p>\n<p><em>\u53c2\u8003\u4ee3\u7801\u8bf7\u770b\uff1ahttps:\/\/dave.cheney.net\/2014\/03\/19\/channel-axioms<\/em><\/p>\n<p>\u4e0b\u9762\u4ecb\u7ecd\u4f7f\u7528channel\u768410\u79cd\u5e38\u7528\u64cd\u4f5c\u3002<\/p>\n<h3>1. \u4f7f\u7528for range\u8bfbchannel<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u5f53\u9700\u8981\u4e0d\u65ad\u4ecechannel\u8bfb\u53d6\u6570\u636e\u65f6<\/li>\n<li>\u539f\u7406\uff1a\u4f7f\u7528<code>for-range<\/code>\u8bfb\u53d6channel\uff0c\u8fd9\u6837\u65e2\u5b89\u5168\u53c8\u4fbf\u5229\uff0c\u5f53channel\u5173\u95ed\u65f6\uff0cfor\u5faa\u73af\u4f1a\u81ea\u52a8\u9000\u51fa\uff0c\u65e0\u9700\u4e3b\u52a8\u76d1\u6d4bchannel\u662f\u5426\u5173\u95ed\uff0c\u53ef\u4ee5\u9632\u6b62\u8bfb\u53d6\u5df2\u7ecf\u5173\u95ed\u7684channel\uff0c\u9020\u6210\u8bfb\u5230\u6570\u636e\u4e3a\u901a\u9053\u6240\u5b58\u50a8\u7684\u6570\u636e\u7c7b\u578b\u7684\u96f6\u503c\u3002<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">for\u00a0x\u00a0:=\u00a0range\u00a0ch{\r\n  fmt.Println(x)\r\n}<\/pre>\n<h3>2. \u4f7f\u7528_,ok\u5224\u65adchannel\u662f\u5426\u5173\u95ed<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u8bfbchannel\uff0c\u4f46\u4e0d\u786e\u5b9achannel\u662f\u5426\u5173\u95ed\u65f6<\/li>\n<li>\u539f\u7406\uff1a\u8bfb\u5df2\u5173\u95ed\u7684channel\u4f1a\u9020\u6210\u96f6\u503c \uff0c\u5982\u679c\u4e0d\u786e\u5b9achannel\uff0c\u9700\u8981\u4f7f\u7528<code>ok<\/code>\u8fdb\u884c\u68c0\u6d4b\u3002ok\u7684\u7ed3\u679c\u548c\u542b\u4e49\uff1a\n<ul class=\"list-paddingleft-2\">\n<li>`true`\uff1a\u8bfb\u5230\u6570\u636e\uff0c\u5e76\u4e14\u901a\u9053\u6ca1\u6709\u5173\u95ed\u3002<\/li>\n<li>`false`\uff1a\u901a\u9053\u5173\u95ed\uff0c\u65e0\u6570\u636e\u8bfb\u5230\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\u7528\u6cd5\uff1a\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">if\u00a0v,\u00a0ok\u00a0:=\u00a0&lt;-\u00a0ch;\u00a0ok\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0fmt.Println(v)\r\n}<\/pre>\n<\/li>\n<\/ul>\n<h3>3. \u4f7f\u7528select\u5904\u7406\u591a\u4e2achannel<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u9700\u8981\u5bf9\u591a\u4e2a\u901a\u9053\u8fdb\u884c\u540c\u65f6\u5904\u7406\uff0c\u4f46\u53ea\u5904\u7406\u6700\u5148\u53d1\u751f\u7684channel\u65f6<\/li>\n<li>\u539f\u7406\uff1a<code>select<\/code>\u53ef\u4ee5\u540c\u65f6\u76d1\u63a7\u591a\u4e2a\u901a\u9053\u7684\u60c5\u51b5\uff0c\u53ea\u5904\u7406\u672a\u963b\u585e\u7684case\u3002<strong>\u5f53\u901a\u9053\u4e3anil\u65f6\uff0c\u5bf9\u5e94\u7684case\u6c38\u8fdc\u4e3a\u963b\u585e\uff0c\u65e0\u8bba\u8bfb\u5199\u3002\u7279\u6b8a\u5173\u6ce8\uff1a\u666e\u901a\u60c5\u51b5\u4e0b\uff0c\u5bf9nil\u7684\u901a\u9053\u5199\u64cd\u4f5c\u662f\u8981panic\u7684<\/strong>\u3002<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">\/\/\u00a0\u5206\u914djob\u65f6\uff0c\u5982\u679c\u6536\u5230\u5173\u95ed\u7684\u901a\u77e5\u5219\u9000\u51fa\uff0c\u4e0d\u5206\u914djob\r\nfunc\u00a0(h\u00a0*Handler)\u00a0handle(job\u00a0*Job)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0select\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0h.jobCh&lt;-job:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0&lt;-h.stopCh:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}<\/pre>\n<h3>4. \u4f7f\u7528channel\u7684\u58f0\u660e\u63a7\u5236\u8bfb\u5199\u6743\u9650<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u534f\u7a0b\u5bf9\u67d0\u4e2a\u901a\u9053\u53ea\u8bfb\u6216\u53ea\u5199\u65f6<\/li>\n<li>\u76ee\u7684\uff1aA. \u4f7f\u4ee3\u7801\u66f4\u6613\u8bfb\u3001\u66f4\u6613\u7ef4\u62a4\uff0cB. \u9632\u6b62\u53ea\u8bfb\u534f\u7a0b\u5bf9\u901a\u9053\u8fdb\u884c\u5199\u6570\u636e\uff0c\u4f46\u901a\u9053\u5df2\u5173\u95ed\uff0c\u9020\u6210panic\u3002<\/li>\n<li>\u7528\u6cd5\uff1a\n<ul class=\"list-paddingleft-2\">\n<li>\u5982\u679c\u534f\u7a0b\u5bf9\u67d0\u4e2achannel\u53ea\u6709\u5199\u64cd\u4f5c\uff0c\u5219\u8fd9\u4e2achannel\u58f0\u660e\u4e3a\u53ea\u5199\u3002<\/li>\n<li>\u5982\u679c\u534f\u7a0b\u5bf9\u67d0\u4e2achannel\u53ea\u6709\u8bfb\u64cd\u4f5c\uff0c\u5219\u8fd9\u4e2achanne\u58f0\u660e\u4e3a\u53ea\u8bfb\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">\/\/\u00a0\u53ea\u6709generator\u8fdb\u884c\u5bf9outCh\u8fdb\u884c\u5199\u64cd\u4f5c\uff0c\u8fd4\u56de\u58f0\u660e\r\n\/\/\u00a0&lt;-chan\u00a0int\uff0c\u53ef\u4ee5\u9632\u6b62\u5176\u4ed6\u534f\u7a0b\u4e71\u7528\u6b64\u901a\u9053\uff0c\u9020\u6210\u9690\u85cfbug\r\nfunc\u00a0generator(int\u00a0n)\u00a0&lt;-chan\u00a0int\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0outCh\u00a0:=\u00a0make(chan\u00a0int)\r\n\u00a0\u00a0\u00a0\u00a0go\u00a0func(){\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for\u00a0i:=0;i&lt;n;i++{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0outCh&lt;-i\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\r\n\u00a0\u00a0\u00a0\u00a0}()\r\n\u00a0\u00a0\u00a0\u00a0return\u00a0outCh\r\n}\r\n\r\n\/\/\u00a0consumer\u53ea\u8bfbinCh\u7684\u6570\u636e\uff0c\u58f0\u660e\u4e3a&lt;-chan\u00a0int\r\n\/\/\u00a0\u53ef\u4ee5\u9632\u6b62\u5b83\u5411inCh\u5199\u6570\u636e\r\nfunc\u00a0consumer(inCh\u00a0&lt;-chan\u00a0int)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0for\u00a0x\u00a0:=\u00a0range\u00a0inCh\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0fmt.Println(x)\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}<\/pre>\n<h3>5. \u4f7f\u7528\u7f13\u51b2channel\u589e\u5f3a\u5e76\u53d1\u548c\u5f02\u6b65<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u5f02\u6b65\u548c\u5e76\u53d1<\/li>\n<li>\u539f\u7406\uff1aA. \u6709\u7f13\u51b2\u901a\u9053\u662f\u5f02\u6b65\u7684\uff0c\u65e0\u7f13\u51b2\u901a\u9053\u662f\u540c\u6b65\u7684\uff0cB. \u6709\u7f13\u51b2\u901a\u9053\u53ef\u4f9b\u591a\u4e2a\u534f\u7a0b\u540c\u65f6\u5904\u7406\uff0c\u5728\u4e00\u5b9a\u7a0b\u5ea6\u53ef\u63d0\u9ad8\u5e76\u53d1\u6027\u3002<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">\/\/\u00a0\u65e0\u7f13\u51b2\uff0c\u540c\u6b65\r\nch1\u00a0:=\u00a0make(chan\u00a0int)\r\nch2\u00a0:=\u00a0make(chan\u00a0int,\u00a00)\r\n\/\/\u00a0\u6709\u7f13\u51b2\uff0c\u5f02\u6b65\r\nch3\u00a0:=\u00a0make(chan\u00a0int,\u00a01)\r\n\/\/\u00a0\u4f7f\u75285\u4e2a`do`\u534f\u7a0b\u540c\u65f6\u5904\u7406\u8f93\u5165\u6570\u636e\r\nfunc\u00a0test()\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0inCh\u00a0:=\u00a0generator(100)\r\n\u00a0\u00a0\u00a0\u00a0outCh\u00a0:=\u00a0make(chan\u00a0int,\u00a010)\r\n\r\n\u00a0\u00a0\u00a0\u00a0for\u00a0i\u00a0:=\u00a00;\u00a0i\u00a0&lt;\u00a05;\u00a0i++\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0go\u00a0do(inCh,\u00a0outCh)\r\n\u00a0\u00a0\u00a0\u00a0}\r\n\r\n\u00a0\u00a0\u00a0\u00a0for\u00a0r\u00a0:=\u00a0range\u00a0outCh\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0fmt.Println(r)\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}\r\n\r\nfunc\u00a0do(inCh\u00a0&lt;-chan\u00a0int,\u00a0outCh\u00a0chan&lt;-\u00a0int)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0for\u00a0v\u00a0:=\u00a0range\u00a0inCh\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0outCh\u00a0&lt;-\u00a0v\u00a0*\u00a0v\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}<\/pre>\n<h3>6. \u4e3a\u64cd\u4f5c\u52a0\u4e0a\u8d85\u65f6<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u9700\u8981\u8d85\u65f6\u63a7\u5236\u7684\u64cd\u4f5c<\/li>\n<li>\u539f\u7406\uff1a\u4f7f\u7528<code>select<\/code>\u548c<code>time.After<\/code>\uff0c\u770b\u64cd\u4f5c\u548c\u5b9a\u65f6\u5668\u54ea\u4e2a\u5148\u8fd4\u56de\uff0c\u5904\u7406\u5148\u5b8c\u6210\u7684\uff0c\u5c31\u8fbe\u5230\u4e86\u8d85\u65f6\u63a7\u5236\u7684\u6548\u679c<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">func\u00a0doWithTimeOut(timeout\u00a0time.Duration)\u00a0(int,\u00a0error)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0select\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0ret\u00a0:=\u00a0&lt;-do():\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0ret,\u00a0nil\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0&lt;-time.After(timeout):\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00,\u00a0errors.New(\"timeout\")\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}\r\n\r\nfunc\u00a0do()\u00a0&lt;-chan\u00a0int\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0outCh\u00a0:=\u00a0make(chan\u00a0int)\r\n\u00a0\u00a0\u00a0\u00a0go\u00a0func()\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\/\/\u00a0do\u00a0work\r\n\u00a0\u00a0\u00a0\u00a0}()\r\n\u00a0\u00a0\u00a0\u00a0return\u00a0outCh\r\n}<\/pre>\n<h3>7. \u4f7f\u7528time\u5b9e\u73b0channel\u65e0\u963b\u585e\u8bfb\u5199<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u5e76\u4e0d\u5e0c\u671b\u5728channel\u7684\u8bfb\u5199\u4e0a\u6d6a\u8d39\u65f6\u95f4<\/li>\n<li>\u539f\u7406\uff1a\u662f\u4e3a\u64cd\u4f5c\u52a0\u4e0a\u8d85\u65f6\u7684\u6269\u5c55\uff0c\u8fd9\u91cc\u7684\u64cd\u4f5c\u662fchannel\u7684\u8bfb\u6216\u5199<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">func\u00a0unBlockRead(ch\u00a0chan\u00a0int)\u00a0(x\u00a0int,\u00a0err\u00a0error)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0select\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0x\u00a0=\u00a0&lt;-ch:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0x,\u00a0nil\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0&lt;-time.After(time.Microsecond):\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a00,\u00a0errors.New(\"read\u00a0time\u00a0out\")\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}\r\n\r\nfunc\u00a0unBlockWrite(ch\u00a0chan\u00a0int,\u00a0x\u00a0int)\u00a0(err\u00a0error)\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0select\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0ch\u00a0&lt;-\u00a0x:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0nil\r\n\u00a0\u00a0\u00a0\u00a0case\u00a0&lt;-time.After(time.Microsecond):\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\u00a0errors.New(\"read\u00a0time\u00a0out\")\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}<\/pre>\n<p><em>\u6ce8\uff1atime.After\u7b49\u5f85\u53ef\u4ee5\u66ff\u6362\u4e3adefault\uff0c\u5219\u662fchannel\u963b\u585e\u65f6\uff0c\u7acb\u5373\u8fd4\u56de\u7684\u6548\u679c<\/em><\/p>\n<h3>8. \u4f7f\u7528close(ch)\u5173\u95ed\u6240\u6709\u4e0b\u6e38\u534f\u7a0b<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u9000\u51fa\u65f6\uff0c\u663e\u793a\u901a\u77e5\u6240\u6709\u534f\u7a0b\u9000\u51fa<\/li>\n<li>\u539f\u7406\uff1a\u6240\u6709\u8bfb<code>ch<\/code>\u7684\u534f\u7a0b\u90fd\u4f1a\u6536\u5230<code>close(ch)<\/code>\u7684\u4fe1\u53f7<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">func\u00a0(h\u00a0*Handler)\u00a0Stop()\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0close(h.stopCh)\r\n\r\n\u00a0\u00a0\u00a0\u00a0\/\/\u00a0\u53ef\u4ee5\u4f7f\u7528WaitGroup\u7b49\u5f85\u6240\u6709\u534f\u7a0b\u9000\u51fa\r\n}\r\n\r\n\/\/\u00a0\u6536\u5230\u505c\u6b62\u540e\uff0c\u4e0d\u518d\u5904\u7406\u8bf7\u6c42\r\nfunc\u00a0(h\u00a0*Handler)\u00a0loop()\u00a0error\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0for\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0select\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0case\u00a0req\u00a0:=\u00a0&lt;-h.reqCh:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0go\u00a0handle(req)\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0case\u00a0&lt;-h.stopCh:\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0return\r\n\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}\r\n\u00a0\u00a0\u00a0\u00a0}\r\n}<\/pre>\n<h3>9. \u4f7f\u7528chan struct{}\u4f5c\u4e3a\u4fe1\u53f7channel<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u4f7f\u7528channel\u4f20\u9012\u4fe1\u53f7\uff0c\u800c\u4e0d\u662f\u4f20\u9012\u6570\u636e\u65f6<\/li>\n<li>\u539f\u7406\uff1a\u6ca1\u6570\u636e\u9700\u8981\u4f20\u9012\u65f6\uff0c\u4f20\u9012\u7a7astruct<\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">\/\/\u00a0\u4e0a\u4f8b\u4e2d\u7684Handler.stopCh\u5c31\u662f\u4e00\u4e2a\u4f8b\u5b50\uff0cstopCh\u5e76\u4e0d\u9700\u8981\u4f20\u9012\u4efb\u4f55\u6570\u636e\r\n\/\/\u00a0\u53ea\u662f\u8981\u7ed9\u6240\u6709\u534f\u7a0b\u53d1\u9001\u9000\u51fa\u7684\u4fe1\u53f7\r\ntype\u00a0Handler\u00a0struct\u00a0{\r\n\u00a0\u00a0\u00a0\u00a0stopCh\u00a0chan\u00a0struct{}\r\n\u00a0\u00a0\u00a0\u00a0reqCh\u00a0chan\u00a0*Request\r\n}<\/pre>\n<h3>10. \u4f7f\u7528channel\u4f20\u9012\u7ed3\u6784\u4f53\u7684\u6307\u9488\u800c\u975e\u7ed3\u6784\u4f53<\/h3>\n<ul class=\"list-paddingleft-2\">\n<li>\u573a\u666f\uff1a\u4f7f\u7528channel\u4f20\u9012\u7ed3\u6784\u4f53\u6570\u636e\u65f6<\/li>\n<li>\u539f\u7406\uff1a<strong>channel\u672c\u8d28\u4e0a\u4f20\u9012\u7684\u662f\u6570\u636e\u7684\u62f7\u8d1d\uff0c\u62f7\u8d1d\u7684\u6570\u636e\u8d8a\u5c0f\u4f20\u8f93\u6548\u7387\u8d8a\u9ad8\uff0c\u4f20\u9012\u7ed3\u6784\u4f53\u6307\u9488\uff0c\u6bd4\u4f20\u9012\u7ed3\u6784\u4f53\u66f4\u9ad8\u6548<\/strong><\/li>\n<li>\u7528\u6cd5\uff1a<\/li>\n<\/ul>\n<pre class=\"EnlighterJSRAW\" data-enlighter-language=\"null\">reqCh\u00a0chan\u00a0*Request\r\n\r\n\/\/\u00a0\u597d\u8fc7\r\nreqCh\u00a0chan\u00a0Request<\/pre>\n<pre><\/pre>\n<h3>\u63a8\u8350\u6587\u7ae0<\/h3>\n<p>\u672c\u6587\u4ecb\u7ecd\u7684channel\u7279\u6027\uff0c\u5927\u591a\u5728\u8fc7\u53bb\u7684\u6587\u7ae0\u4e2d\u5df2\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u53ef\u6309\u9700\u6c42\u9605\u8bfb\u3002<\/p>\n<ol class=\"list-paddingleft-2\">\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=Mzg3MTA0NDQ1OQ==&amp;mid=2247483689&amp;idx=1&amp;sn=7dfed7ffb000752a456125513ed99c26&amp;scene=21#wechat_redirect\" data-linktype=\"2\">Golang\u5e76\u53d1\u6a21\u578b\uff1a\u5e76\u53d1\u534f\u7a0b\u7684\u4f18\u96c5\u9000\u51fa<\/a><\/li>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=Mzg3MTA0NDQ1OQ==&amp;mid=2247483702&amp;idx=1&amp;sn=50825426986120a0b306e0f6da176951&amp;scene=21#wechat_redirect\" data-linktype=\"2\">Golang\u5e76\u53d1\u6a21\u578b\uff1a\u8f7b\u677e\u5165\u95e8select<\/a><\/li>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=Mzg3MTA0NDQ1OQ==&amp;mid=2247483714&amp;idx=1&amp;sn=383e060fbf824d956dab6dc0a5555352&amp;scene=21#wechat_redirect\" data-linktype=\"2\">Golang\u5e76\u53d1\u6a21\u578b\uff1aselect\u8fdb\u9636<\/a><\/li>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=Mzg3MTA0NDQ1OQ==&amp;mid=2247483724&amp;idx=1&amp;sn=6890ab956c2f0020e9107ef60a388d5b&amp;scene=21#wechat_redirect\" data-linktype=\"2\">Golang\u5e76\u53d1\u6a21\u578b\uff1a\u8f7b\u677e\u5165\u95e8\u534f\u7a0b\u6c60<\/a><\/li>\n<li><a href=\"https:\/\/mp.weixin.qq.com\/s?__biz=Mzg3MTA0NDQ1OQ==&amp;mid=2247483788&amp;idx=1&amp;sn=3b9d237029bfaa02847b4dacdc118173&amp;scene=21#wechat_redirect\" data-linktype=\"2\">Golang\u5e76\u53d1\u6a21\u578b\uff1a\u518d\u4e5f\u4e0d\u6101\u9009channel\u8fd8\u662f\u9009\u9501<\/a><\/li>\n<\/ol>\n<ol class=\"list-paddingleft-2\">\n<li><strong>\u65b0\u7533\u8bf7\u516c\u4f17\u53f7\u5df2\u65e0\u8bc4\u8bba\u529f\u80fd\uff0c\u5927\u5bb6\u6709\u4efb\u4f55\u60f3\u4ea4\u6d41\u7684\uff0c\u53ef\u4ee5\u7ed9\u516c\u4f17\u53f7\u7559\u8a00\uff0c\u767d\u5929\u7559\u8a00\u665a\u4e0a\u5fc5\u56de\uff0c\u665a\u4e0a\u7559\u8a00\u6b21\u65e5\u5fc5\u56de<\/strong><\/li>\n<li><strong>\u4e0d\u6562\u5962\u6c42\u8d5e\u8d4f\uff0c\u89c9\u5f97\u6709\u7528\u5c31\u70b9\u4e0b\u300c\u770b\u4e00\u770b\u300d\u611f\u8c22<\/strong><\/li>\n<\/ol>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u7bc7\u6587\u7ae0\u603b\u7ed3\u4e86channel\u768410\u79cd\u5e38\u7528<\/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":[122],"class_list":["post-2800","post","type-post","status-publish","format-standard","hentry","tag-06-godocker"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/2800","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=2800"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/2800\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=2800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=2800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=2800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}