{"id":1253,"date":"2018-05-16T11:32:16","date_gmt":"2018-05-16T03:32:16","guid":{"rendered":"https:\/\/damogame.cn:15443\/wordpress\/?p=1253"},"modified":"2018-05-16T11:32:16","modified_gmt":"2018-05-16T03:32:16","slug":"lua%e4%bb%a3%e7%a0%81%e9%a3%8e%e6%a0%bc%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/1253","title":{"rendered":"Lua\u4ee3\u7801\u98ce\u683c\u6307\u5357"},"content":{"rendered":"<header class=\"entry-header\">\n<h1 class=\"entry-title\">Lua\u4ee3\u7801\u98ce\u683c\u6307\u5357<\/h1>\n<div class=\"entry-meta\"><span class=\"posted-on\">Posted on <a href=\"https:\/\/wuzhiwei.net\/lua_style_guide\/\" rel=\"bookmark\"><time class=\"entry-date published\" datetime=\"2015-09-12T23:41:31+00:00\">2015\/09\/12<\/time><\/a> <\/span><span class=\"comments-link\">\u00b7\u00a0<a href=\"https:\/\/wuzhiwei.net\/lua_style_guide\/#comments\">6 Comments<\/a><\/span><\/div>\n<\/header>\n<div class=\"entry-content\">\n<h2 id=\"toc_1\">\u5199\u4ee3\u7801\u4e5f\u6709\u98ce\u683c\uff1f<\/h2>\n<p>\u5f53\u7136\uff0c\u5199\u4ee3\u7801\u5c31\u8ddf\u5199\u6587\u7ae0\u4e00\u6837\uff0c\u6bcf\u4e2a\u4eba\u6216\u591a\u6216\u5c11\u90fd\u6709\u81ea\u5df1\u7684\u98ce\u683c\u3002\u4e0d\u540c\u7684\u8bed\u8a00\u4e5f\u5c31\u50cf\u4e0d\u540c\u7684\u6587\u4f53\u4e00\u6837\uff0c\u4e5f\u6709\u81ea\u5df1\u7684\u72ec\u7279\u7684\u98ce\u683c\u3002Lua\u662f\u4e00\u95e8\u811a\u672c\u8bed\u8a00\uff0c\u5199\u8d77\u6765\u8f7b\u677e\u60ec\u610f\uff0c\u4f46\u4e0d\u4ee3\u8868\u5b83\u6ca1\u6709\u5c5e\u4e8e\u81ea\u5df1\u7684\u98ce\u683c\u6307\u5357\u3002<\/p>\n<p>\u597d\u7684\u4ee3\u7801\u98ce\u683c\u57fa\u4e8e<strong>\u53ef\u8bfb\u6027<\/strong>\u548c<strong>\u4e00\u81f4\u6027<\/strong>\u3002<strong>\u4ee3\u7801\u66f4\u591a\u7684\u65f6\u95f4\u662f\u7ed9\u4eba\u770b\u7684<\/strong>\uff0c\u5982\u679c\u601d\u8003\u597d\u4e86\u7ed3\u6784\u548c\u903b\u8f91\uff0c\u5199\u4ee3\u7801\u7684\u8fc7\u7a0b\u5176\u5b9e\u5f88\u5feb\u3002\u98ce\u683c\u7684\u4e00\u81f4\u6027\u4e5f\u5f88\u91cd\u8981\uff0c\u8fd9\u6837\u53ef\u4ee5\u51cf\u5c11\u590d\u6742\u5ea6\u548c\u7406\u89e3\u6210\u672c\u3002\u517b\u6210\u4e00\u79cd\u826f\u597d\u7684\u4ee3\u7801\u98ce\u683c\u4f1a\u5f62\u6210\u4e00\u79cd\u826f\u597d\u5199\u4ee3\u7801\u4e60\u60ef\uff0c\u8fd9\u79cd\u4e60\u60ef\u4f1a\u4f7f\u7f16\u7801\u4e8b\u534a\u529f\u500d\u3002<\/p>\n<p>\u4e0b\u6587\u5c06\u4ece<strong>\u547d\u540d<\/strong>\uff0c<strong>\u4f5c\u7528\u57df<\/strong>\uff0c<strong>\u6a21\u5757<\/strong>\uff0c<strong>\u6ce8\u91ca<\/strong>\u548c<strong>\u60ef\u7528\u6cd5\uff08\u7cbe\u5de7\u7528\u6cd5\uff09<\/strong>\u7b49\u65b9\u9762\u6765\u8bf4\u660eLua\u7684\u4ee3\u7801\u98ce\u683c\uff0c\u6587\u7ae0\u7684\u6700\u540e\u4f1a\u9644\u4e0a\u4e00\u4e9b<strong>\u53c2\u8003\u8d44\u6599<\/strong>\u7684\u94fe\u63a5\u4ee5\u4f9b\u8bfb\u8005\u62d3\u5c55\u9605\u8bfb\u3002<\/p>\n<h2 id=\"toc_2\">\u547d\u540d<\/h2>\n<p>\u6700\u597d\u7684\u4ee3\u7801\u662f<strong>\u81ea\u8bf4\u660e\u4ee3\u7801<\/strong>\uff0c\u8fd9\u79cd\u4ee3\u7801\u4e0d\u9700\u8981\u591a\u4f59\u7684\u6ce8\u91ca\uff0c\u5176\u672c\u8eab\u4fbf\u5177\u5907\u4e86\u63cf\u8ff0\u4f5c\u8005\u610f\u56fe\u7684\u4fe1\u606f\u3002\u4e00\u79cd\u597d\u7684\u547d\u540d\u98ce\u683c\u662f\u81ea\u8bf4\u660e\u4ee3\u7801\u7684\u57fa\u7840\u3002<\/p>\n<h3 id=\"toc_3\">\u547d\u540d\u6cd5<\/h3>\n<h4 id=\"toc_4\">\u9a7c\u5cf0\u547d\u540d\u6cd5<\/h4>\n<ul>\n<li>\u5c0f\u9a7c\u5cf0\u5f0f\u547d\u540d\u6cd5\uff1a\u7b2c\u4e00\u4e2a\u5355\u5b57\u4ee5\u5c0f\u5199\u5b57\u6bcd\u5f00\u59cb\uff1b\u7b2c\u4e8c\u4e2a\u5355\u5b57\u7684\u9996\u5b57\u6bcd\u5927\u5199\uff0c\u4f8b\u5982\uff1a<code>firstName<\/code>\u3001<code>lastName<\/code>\u3002<\/li>\n<li>\u5927\u9a7c\u5cf0\u5f0f\u547d\u540d\u6cd5\uff1a\u6bcf\u4e00\u4e2a\u5355\u5b57\u7684\u9996\u5b57\u6bcd\u90fd\u91c7\u7528\u5927\u5199\u5b57\u6bcd\uff0c\u4f8b\u5982\uff1a<code>FirstName<\/code>\u3001<code>LastName<\/code>\u3001<code>CamelCase<\/code>\uff0c\u4e5f\u88ab\u79f0\u4e3aPascal\u547d\u540d\u6cd5\u3002<\/li>\n<\/ul>\n<h4 id=\"toc_5\">\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5<\/h4>\n<ul>\n<li>\u5c0f\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5\uff1a\u6240\u6709\u5b57\u6bcd\u5747\u4e3a\u5c0f\u5199\uff0c\u4f8b\u5982\u767b\u5f55\u6309\u94ae\uff1a<code>login_btn<\/code>\u3002<\/li>\n<li>\u5927\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5\uff1a\u6240\u6709\u5b57\u6bcd\u5747\u4e3a\u5927\u5199\uff0c\u5e38\u89c1\u4e8e\u5e38\u91cf\uff0c\u4f8b\u5982\uff1a\u6700\u5c0f\u95f4\u9694\u65f6\u95f4<code>MIN_GAP_TIME<\/code>\u3002<\/li>\n<\/ul>\n<p>\u91c7\u7528\u9a7c\u5cf0\u6cd5\u6216\u8005\u4e0b\u5212\u7ebf\u6cd5\u90fd\u4e0d\u592a\u91cd\u8981\uff0c\u91cd\u8981\u7684\u662f\u4f60\u91c7\u7528\u4e86\u81ea\u5df1\u559c\u6b22\u7684\u4e00\u79cd\u547d\u540d\u6cd5\uff0c\u7136\u540e<strong>\u4e00\u76f4\u4fdd\u6301\u4e0b\u53bb<\/strong>\u3002<\/p>\n<h3 id=\"toc_6\">\u53d8\u91cf\u540d\u957f\u5ea6<\/h3>\n<p>\u901a\u5e38\u4f5c\u7528\u57df\u8303\u56f4\u66f4\u5927\u7684\u53d8\u91cf\u540d\u8981\u6bd4\u4f5c\u7528\u57df\u8303\u56f4\u66f4\u5c0f\u7684\u53d8\u91cf\u540d\u5177\u6709\u66f4\u591a\u7684\u63cf\u8ff0\u4fe1\u606f\u3002\u4f8b\u5982\uff1a<code>i<\/code>\u7ecf\u5e38\u7528\u4e8e\u5faa\u73af\u4e2d\u5145\u5f53\u8ba1\u6570\u53d8\u91cf\uff0c\u800c\u5c06\u5176\u4f5c\u4e3a\u5168\u5c40\u53d8\u91cf\u4f7f\u7528\u5bb9\u6613\u5bfc\u81f4\u8bf8\u591a\u95ee\u9898\u3002<\/p>\n<h3 id=\"toc_7\">\u53d8\u91cf\u547d\u540d<\/h3>\n<p>\u5bf9\u4e8e\u53d8\u91cf\uff08\u5305\u62ec\u51fd\u6570\uff09\uff0c\u5c0f\u9a7c\u5cf0\u5f0f\u547d\u540d\u6cd5\u6216\u5c0f\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5\u662f\u4e00\u4e2a\u597d\u9009\u62e9\u3002\u6bd4\u5982\uff1a<code>curSpeed<\/code>\u8868\u793a\u5f53\u524d\u901f\u5ea6\uff0c<code>canDrop<\/code>\u8868\u793a\u662f\u5426\u80fd\u6389\u843d\u7b49\u7b49\u3002<\/p>\n<p>\u5bf9\u4e8e\u5e03\u5c14\u503c\u578b\u7684\u53d8\u91cf\uff0c\u901a\u5e38\u524d\u7f00\u52a0\u4e0a<code>is<\/code>\u53ef\u4ee5\u65b9\u4fbf\u7406\u89e3\uff0c\u6bd4\u5982<code>isRemoved<\/code>\u6bd4<code>Removed<\/code>\u66f4\u52a0\u80fd\u8868\u793a\u8fd9\u662f\u4e00\u4e2a\u5e03\u5c14\u503c\u53d8\u91cf\u3002<\/p>\n<p>Lua\u4e2d\u6709\u4e00\u79cd\u7279\u6b8a\u7684\u53d8\u91cf\u540d\uff1a<code>_<\/code>\uff0c\u5e38\u7528\u6765\u8868\u793a\u53ef\u4ee5\u88ab\u5ffd\u7565\u7684\u3001\u4e0d\u4f1a\u4f7f\u7528\u5230\u7684\u53d8\u91cf\uff0c\u5e38\u4f7f\u7528\u5728\u5faa\u73af\u4e2d\u3002<\/p>\n<div id=\"crayon-5afba6183ea59050518398\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea59050518398-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea59050518398-1\">1<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea59050518398-0\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; `_`\u8868\u793a\u8868\u7684\u952e\u53ef\u4ee5\u88ab\u5ffd\u7565\uff0c\u53ea\u5728\u5faa\u73af\u5185\u4f7f\u7528\u8868\u4e2d\u7684\u503c`v`<\/span><\/div>\n<div id=\"crayon-5afba6183ea59050518398-1\" class=\"crayon-line\"><span class=\"crayon-st\">for<\/span> <span class=\"crayon-v\">_<\/span><span class=\"crayon-sy\">,<\/span><span class=\"crayon-i\">v<\/span> <span class=\"crayon-st\">in<\/span> <span class=\"crayon-e\">ipairs<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">do<\/span> <span class=\"crayon-r\">print<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">v<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u5728\u8868\u7684\u5faa\u73af\u4e2d\u548c\u51fd\u6570\u53c2\u6570\u5217\u8868\u4e2d\uff0c<code>i<\/code>\u5e38\u8868\u793a<code>ipairs<\/code>\u4e0b\u7684\u6570\u7ec4\u4e0b\u6807\uff0c<code>k<\/code>\u5e38\u8868\u793a<code>pairs<\/code>\u4e0b\u7684\u952e\uff0c<code>v<\/code>\u5e38\u8868\u793a\u5bf9\u5e94\u7684\u503c\uff0c<code>t<\/code>\u5219\u8868\u793a\u8868\u3002<\/p>\n<div id=\"crayon-5afba6183ea62431416411\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea62431416411-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea62431416411-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea62431416411-2\">2<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea62431416411-0\" class=\"crayon-line\"><span class=\"crayon-st\">for<\/span> <span class=\"crayon-v\">k<\/span><span class=\"crayon-sy\">,<\/span><span class=\"crayon-i\">v<\/span> <span class=\"crayon-st\">in<\/span> <span class=\"crayon-e\">pairs<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">do<\/span> <span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea62431416411-1\" class=\"crayon-line\"><span class=\"crayon-st\">for<\/span> <span class=\"crayon-v\">i<\/span><span class=\"crayon-sy\">,<\/span><span class=\"crayon-i\">v<\/span> <span class=\"crayon-st\">in<\/span> <span class=\"crayon-e\">ipairs<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">do<\/span> <span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea62431416411-2\" class=\"crayon-line\"><span class=\"crayon-v\">mt<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-v\">__newindex<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-r\">function<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">,<\/span> <span class=\"crayon-v\">k<\/span><span class=\"crayon-sy\">,<\/span> <span class=\"crayon-v\">v<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-sy\">.<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h3 id=\"toc_8\">\u5e38\u6570\u547d\u540d<\/h3>\n<p>Lua\u91cc\u6ca1\u6709\u4e25\u683c\u7684\u5e38\u6570\u5b9a\u4e49\u6807\u8bc6\u7b26\uff0c\u6240\u4ee5\u5bf9\u4e8e\u5e38\u6570\u7684\u547d\u540d\u683c\u5916\u91cd\u8981\u3002<\/p>\n<p>\u5e38\u6570\u4e00\u822c\u91c7\u7528\u5927\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5\u3002\u8fd9\u6837\u6bcf\u4e2a\u5b57\u6bcd\u90fd\u5927\u5199\uff0c\u5341\u5206\u9192\u76ee\uff0c\u4e14\u5404\u4e2a\u5355\u8bcd\u90fd\u7528\u4e0b\u5212\u7ebf\u5206\u5272\uff0c\u4fbf\u4e8e\u9605\u8bfb\u3002<\/p>\n<p>\u6bd4\u5982\uff1a<code>MAX_SPEED<\/code>\u8868\u793a\u6700\u5927\u901f\u5ea6\uff0c<code>IS_SHOW_DEBUG_ERROR_MSG<\/code>\u8868\u793a\u662f\u5426\u663e\u793a\u62a5\u9519\u6d88\u606f\u7b49\u7b49\u3002<\/p>\n<h3 id=\"toc_9\">\u7c7b\u540d<\/h3>\n<p>\u4e3a\u4e86\u4e0d\u4e0e\u53d8\u91cf\u540d\u548c\u5e38\u6570\u540d\u6df7\u6dc6\uff0c\u7c7b\u540d\u901a\u5e38\u4f7f\u7528\u5927\u9a7c\u5cf0\u5f0f\u547d\u540d\u6cd5\uff0c\u5373\u9996\u5b57\u6bcd\u5927\u5199\u3002\u6bd4\u5982\uff1a<code>TouchManager<\/code>\u8868\u793a\u89e6\u6478\u7ba1\u7406\u5668\u7c7b\u3002<\/p>\n<h3 id=\"toc_10\">\u5305\u548c\u6a21\u5757\u540d<\/h3>\n<p>\u5305\u540d\u548c\u6a21\u5757\u540d\u901a\u5e38\u5f88\u77ed\uff0c\u5e76\u4e14\u5168\u90e8\u5c0f\u5199\uff0c\u5355\u8bcd\u95f4\u5e76\u6ca1\u6709\u4e0b\u5212\u7ebf\u533a\u5206\u3002\u6bd4\u5982\uff1a\u6587\u4ef6\u8bfb\u53d6\u5e93\u540d\u4e3a<code>lfs<\/code>\uff0c\u8868\u793a<code>Lua File System<\/code>\uff1bXML\u89e3\u6790\u5e93\u540d\u4e3a<code>lxp<\/code>\uff0c\u8868\u793a<code>Lua XML Parser<\/code>\u7b49\u7b49\u3002<\/p>\n<h3 id=\"toc_11\">\u6587\u4ef6\u540d<\/h3>\n<p>\u901a\u5e38\u4e3a\u4e86\u4e0d\u4e0e\u7c7b\u540d\u6df7\u6dc6\uff0c\u5bf9\u4e8e\u6587\u4ef6\u540d\uff0c\u7ecf\u5e38\u4f7f\u7528\u5c0f\u9a7c\u5cf0\u5f0f\u547d\u540d\u6cd5\u6216\u5c0f\u4e0b\u5212\u7ebf\u547d\u540d\u6cd5\u3002<\/p>\n<h2 id=\"toc_12\">\u4f5c\u7528\u57df<\/h2>\n<p>Lua\u7684\u4f5c\u7528\u57df\u4ee5\u5173\u952e\u5b57<code>end<\/code>\u8fdb\u884c\u6807\u8bc6\u3002<\/p>\n<p>\u5bf9\u4e8e\u53d8\u91cf\uff0c\u6709\u4e00\u6761\u539f\u5219\uff1a\u5728\u4e00\u5207\u80fd\u4f7f\u7528<code>local<\/code>\u4fee\u9970\u7684\u60c5\u51b5\u4e0b\uff0c\u4f7f\u7528<code>local<\/code>\u8fdb\u884c\u4fee\u9970\u3002<\/p>\n<p>\u56e0\u4e3a\u4e0d\u7528<code>local<\/code>\u4fee\u9970\u7684\u53d8\u91cf\u4f1a\u81ea\u52a8\u53d8\u6210\u5168\u5c40\u53d8\u91cf\u3002\u5168\u5c40\u53d8\u91cf\u5341\u5206\u5371\u9669\uff0c\u5f88\u5bb9\u6613\u88ab\u7be1\u6539\u800c\u4e0d\u77e5\u9053\u5728\u54ea\u91cc\u88ab\u7be1\u6539\u4e86\uff0c\u8fd9\u5f88\u5bb9\u6613\u5bfc\u81f4\u987d\u56fa\u7684bug\u51fa\u73b0\u3002\u5e76\u4e14\u5168\u5c40\u53d8\u91cf\u7684\u5904\u7406\u901f\u5ea6\u4e5f\u6bd4\u5c40\u90e8\u53d8\u91cf\u7684\u901f\u5ea6\u8981\u6162\u5f88\u591a\u3002<\/p>\n<p>\u6240\u4ee5\uff0c\u5c3d\u53ef\u80fd\u7684\u7528<code>local<\/code>\u6765\u4fee\u9970\u53d8\u91cf\u3002<\/p>\n<p>\u6709\u65f6\u5019\uff0c\u7528<code>do .. end<\/code>\u53ef\u4ee5\u7528\u6765\u660e\u786e\u9650\u5b9a\u5c40\u90e8\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u3002<\/p>\n<div id=\"crayon-5afba6183ea69462446704\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-3\">3<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-4\">4<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-5\">5<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-6\">6<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-7\">7<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-8\">8<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-9\">9<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-10\">10<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-11\">11<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea69462446704-12\">12<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea69462446704-0\" class=\"crayon-line\"><span class=\"crayon-r\">local<\/span> <span class=\"crayon-i\">v<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-1\" class=\"crayon-line\"><span class=\"crayon-st\">do<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-2\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">x<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-v\">u2<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-v\">v3<\/span><span class=\"crayon-o\">&#8211;<\/span><span class=\"crayon-v\">u3<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-e\">v2<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-3\" class=\"crayon-line\"><span class=\"crayon-e\">\u00a0\u00a0<\/span><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">y<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-v\">u3<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-v\">v1<\/span><span class=\"crayon-o\">&#8211;<\/span><span class=\"crayon-v\">u1<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-e\">v3<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-4\" class=\"crayon-line\"><span class=\"crayon-e\">\u00a0\u00a0<\/span><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">z<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-v\">u1<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-v\">v2<\/span><span class=\"crayon-o\">&#8211;<\/span><span class=\"crayon-v\">u2<\/span><span class=\"crayon-o\">*<\/span><span class=\"crayon-i\">v1<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-5\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-v\">v<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-sy\">{<\/span><span class=\"crayon-v\">x<\/span><span class=\"crayon-sy\">,<\/span><span class=\"crayon-v\">y<\/span><span class=\"crayon-sy\">,<\/span><span class=\"crayon-v\">z<\/span><span class=\"crayon-sy\">}<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-6\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span> <span class=\"crayon-c\">&#8212; x,y,z\u7684\u4f5c\u7528\u57df\u7ed3\u675f\uff0c\u88ab\u7cfb\u7edf\u6e05\u7406<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-7\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea69462446704-8\" class=\"crayon-line\"><span class=\"crayon-r\">local<\/span> <span class=\"crayon-e\">count<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-9\" class=\"crayon-line\"><span class=\"crayon-st\">do<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-10\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">x<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-cn\">0<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-11\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-v\">count<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-r\">function<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-v\">x<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-v\">x<\/span> <span class=\"crayon-o\">+<\/span> <span class=\"crayon-cn\">1<\/span><span class=\"crayon-sy\">;<\/span> <span class=\"crayon-st\">return<\/span> <span class=\"crayon-i\">x<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea69462446704-12\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span> <span class=\"crayon-c\">&#8212; x\u7684\u4f5c\u7528\u57df\u7ed3\u675f\uff0c\u88ab\u7cfb\u7edf\u6e05\u7406<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2 id=\"toc_13\">\u6a21\u5757<\/h2>\n<p>Lua\u4e2d\u6709\u4e00\u4e2a\u53eb<code>module<\/code>\u7684\u516c\u6709\u51fd\u6570\uff0c\u6b64\u51fd\u6570\u7684\u4f5c\u7528\u662f\u5c06\u4e00\u7ec4\u53d8\u91cf\u548c\u51fd\u6570\u6253\u5305\u5728\u4e00\u4e2a\u6a21\u5757\u540d\u4e0b\uff0c\u4fbf\u4e8e\u5176\u4ed6\u6587\u4ef6<code>require<\/code>\u3002\u4f46\u662f\u8fd9\u4e2a\u51fd\u6570\u53d7\u5230\u4e86\u8bf8\u591a\u7684<a href=\"http:\/\/lua-users.org\/wiki\/LuaModuleFunctionCritiqued\">\u6307\u8d23<\/a>\uff0c\u539f\u56e0\u662f\u5176\u4f1a\u521b\u5efa\u4e00\u4e2a\u516c\u5171\u53d8\u91cf\uff0c\u5e76\u4e14\u8fd9\u4e2a\u516c\u5171\u53d8\u91cf\u4e2d\u7684\u6240\u6709\u7ec6\u8282\u90fd\u4f1a\u66b4\u9732\u51fa\u6765\u3002\u8fd9\u5176\u5b9e\u5341\u5206\u4e0d\u7b26\u5408\u9762\u5411\u5bf9\u8c61\u7684\u89c4\u8303\u3002<\/p>\n<p>\u4ee5\u4e0b\u6709\u4e00\u79cd\u529e\u6cd5\u53ef\u4ee5\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\uff0c\u5373\u4e0d\u91c7\u7528<code>module<\/code>\u51fd\u6570\u8fdb\u884c\u6253\u5305\u3002<\/p>\n<div id=\"crayon-5afba6183ea72571151536\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-3\">3<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-4\">4<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-5\">5<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-6\">6<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-7\">7<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea72571151536-8\">8<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea72571151536-0\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; hello\/mytest.lua<\/span><\/div>\n<div id=\"crayon-5afba6183ea72571151536-1\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea72571151536-2\" class=\"crayon-line\"><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">M<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-sy\">{<\/span><span class=\"crayon-sy\">}<\/span> <span class=\"crayon-c\">&#8212; \u79c1\u6709\u53d8\u91cf<\/span><\/div>\n<div id=\"crayon-5afba6183ea72571151536-3\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea72571151536-4\" class=\"crayon-line\"><span class=\"crayon-r\">local<\/span> <span class=\"crayon-r\">function<\/span> <span class=\"crayon-e\">test<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-r\">print<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-cn\">123<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea72571151536-5\" class=\"crayon-line\"><span class=\"crayon-r\">function<\/span> <span class=\"crayon-v\">M<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">test1<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-e\">test<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea72571151536-6\" class=\"crayon-line\"><span class=\"crayon-r\">function<\/span> <span class=\"crayon-v\">M<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">test2<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-v\">M<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">test1<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span><span class=\"crayon-sy\">;<\/span> <span class=\"crayon-v\">M<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">test1<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea72571151536-7\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea72571151536-8\" class=\"crayon-line\"><span class=\"crayon-st\">return<\/span> <span class=\"crayon-v\">M<\/span> <span class=\"crayon-c\">&#8212; \u5173\u952e<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u4ee5\u4e0b\u662f\u5bfc\u5165\u6b64\u6a21\u5757\u7684\u65b9\u6cd5\u3002<\/p>\n<div id=\"crayon-5afba6183ea77985605743\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea77985605743-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea77985605743-1\">1<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea77985605743-0\" class=\"crayon-line\"><span class=\"crayon-r\">local<\/span> <span class=\"crayon-v\">MT<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-r\">require<\/span> <span class=\"crayon-s\">&#8220;hello.mytest&#8221;<\/span><\/div>\n<div id=\"crayon-5afba6183ea77985605743-1\" class=\"crayon-line\"><span class=\"crayon-v\">MT<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">test2<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>Lua\u5185\u6ca1\u6709\u7c7b\u8fd9\u4e2a\u53d8\u91cf\u7c7b\u578b\uff0c\u4f46\u662f\u901a\u8fc7Lua\u7684<code>metatable<\/code>\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u7c7b\u7684\u7ee7\u627f\uff0c\u591a\u6001\u7b49\u7b49\u7279\u6027\u3002\u5173\u4e8eLua\u4e2d\u7c7b\u7684\u5b9e\u73b0\u539f\u7406\uff0c\u8bf7\u53c2\u8003\u6211\u4e4b\u524d\u5199\u7684\u8fd9\u7bc7\u535a\u5ba2\uff1a<a href=\"http:\/\/wuzhiwei.net\/lua_make_class\/\">Lua\u4e2d\u5b9e\u73b0\u7c7b\u7684\u539f\u7406<\/a>\u3002<\/p>\n<h2 id=\"toc_14\">\u6ce8\u91ca<\/h2>\n<p>\u901a\u5e38\u5728<code>--<\/code>\u524d\u52a0\u4e0a\u4e00\u4e2a\u7a7a\u683c\u3002<\/p>\n<div id=\"crayon-5afba6183ea7c094796467\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea7c094796467-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea7c094796467-1\">1<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea7c094796467-0\" class=\"crayon-line\"><span class=\"crayon-st\">return<\/span> <span class=\"crayon-r\">nil<\/span><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; not found\u00a0\u00a0\u00a0\u00a0(\u5efa\u8bae)<\/span><\/div>\n<div id=\"crayon-5afba6183ea7c094796467-1\" class=\"crayon-line\"><span class=\"crayon-st\">return<\/span> <span class=\"crayon-r\">nil<\/span><span class=\"crayon-h\">\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8211;not found\u00a0\u00a0\u00a0\u00a0 (\u4e0d\u5efa\u8bae)<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u6ce8\u91ca\u901a\u5e38\u7528\u5728\u51fd\u6570\u63a5\u53e3\uff0c\u6216\u8005\u590d\u6742\uff0c\u7cbe\u5de7\u7684\u903b\u8f91\u4e0a\u3002<\/p>\n<p>\u5bf9\u4e8e\u63a5\u53e3\u7684\u6ce8\u91ca\uff0c\u53ef\u4ee5\u6309\u7167javadoc\u7c7b\u4f3c\u7684\u6765\u5199\u3002<\/p>\n<div id=\"crayon-5afba6183ea80722750251\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-3\">3<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-4\">4<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-5\">5<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea80722750251-6\">6<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea80722750251-0\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; Deletes a session.<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-1\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; @param id Session identification.<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-2\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-3\" class=\"crayon-line\"><span class=\"crayon-r\">function<\/span> <span class=\"crayon-e\">delete<\/span> <span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">id<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-4\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-st\">assert<\/span> <span class=\"crayon-sy\">(<\/span><span class=\"crayon-e\">check_id<\/span> <span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">id<\/span><span class=\"crayon-sy\">)<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-5\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-e\">remove<\/span> <span class=\"crayon-sy\">(<\/span><span class=\"crayon-e\">filename<\/span> <span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">id<\/span><span class=\"crayon-sy\">)<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<div id=\"crayon-5afba6183ea80722750251-6\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<h2 id=\"toc_15\">\u60ef\u7528\u6cd5\uff08\u7cbe\u5de7\u7528\u6cd5\uff09<\/h2>\n<h3 id=\"toc_16\">\u5c3d\u53ef\u80fd\u4f7f\u7528local\u4fee\u9970\u53d8\u91cf\uff08\u91cd\u8981\u7684\u4e8b\u60c5\u8981\u8bf4\u4e09\u904d\uff01\uff09<\/h3>\n<p>\u539f\u56e0\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528<code>local<\/code>\u7684\u53d8\u91cf\u4f1a\u5728\u4f5c\u7528\u57df\u7ed3\u675f\u65f6\u91ca\u653e\u5176\u5185\u5b58<\/li>\n<li>\u4f7f\u7528<code>local<\/code>\u7684\u53d8\u91cf\u4f1a\u6bd4\u5168\u5c40\u53d8\u91cf\u7684\u5b58\u53d6\u66f4\u5feb<\/li>\n<li>\u5168\u5c40\u53d8\u91cf\u4f1a\u6c61\u67d3\u5168\u5c40\u7684\u547d\u540d\u7a7a\u95f4\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u8be1\u5f02\u7684bug\u51fa\u73b0<\/li>\n<\/ul>\n<h3 id=\"toc_17\">\u76f4\u63a5\u5224\u65ad\u771f\u5047\u503c<\/h3>\n<div id=\"crayon-5afba6183ea85036820630\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-3\">3<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-4\">4<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-5\">5<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-6\">6<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-7\">7<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea85036820630-8\">8<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea85036820630-0\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; \u4e0d\u63a8\u8350<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-1\" class=\"crayon-line\"><span class=\"crayon-st\">if<\/span> <span class=\"crayon-v\">obj<\/span> <span class=\"crayon-o\">~<\/span><span class=\"crayon-o\">=<\/span> <span class=\"crayon-r\">nil<\/span> <span class=\"crayon-st\">and<\/span> <span class=\"crayon-v\">willBreak<\/span> <span class=\"crayon-o\">==<\/span> <span class=\"crayon-r\">false<\/span> <span class=\"crayon-st\">then<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-2\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; &#8230;<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-3\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-4\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea85036820630-5\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; \u63a8\u8350<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-6\" class=\"crayon-line\"><span class=\"crayon-st\">if<\/span> <span class=\"crayon-e\">obj <\/span><span class=\"crayon-st\">and<\/span> <span class=\"crayon-st\">not<\/span> <span class=\"crayon-e\">willBreak <\/span><span class=\"crayon-st\">then<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-7\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; &#8230;<\/span><\/div>\n<div id=\"crayon-5afba6183ea85036820630-8\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u539f\u56e0\uff1aLua\u5728\u903b\u8f91\u5224\u65ad\u65f6\u5c06\u6240\u6709<code>false<\/code>\u548c<code>nil<\/code>\u7684\u903b\u8f91\u5224\u65ad\u89c6\u4e3a\u5047\uff0c\u53cd\u4e4b\u5219\u5168\u90e8\u89c6\u4e3a\u771f\uff0c\u4e0d\u9700\u8981\u518d\u4e0e\u5e03\u5c14\u503c\u548c<code>nil<\/code>\u8fdb\u884c\u663e\u5f0f\u6bd4\u5bf9\u3002<\/p>\n<p>\u4f46\u662f\uff0c\u5728\u9700\u8981\u5bf9<code>false<\/code>\u548c<code>nil<\/code>\u8fdb\u884c\u533a\u5206\u65f6\uff0c\u9700\u8981\u5199\u660e<code>==<\/code>\uff1a<code>obj == nil<\/code>\u548c<code>obj == false<\/code>\u3002<\/p>\n<h3 id=\"toc_18\">\u9ed8\u8ba4\u53c2\u6570\u7684\u5b9e\u73b0<\/h3>\n<p>\u8303\u5f0f\uff1a<code>param = param or defaultValue<\/code><\/p>\n<div id=\"crayon-5afba6183ea8e030438718\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea8e030438718-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea8e030438718-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea8e030438718-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea8e030438718-3\">3<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea8e030438718-0\" class=\"crayon-line\"><span class=\"crayon-r\">function<\/span> <span class=\"crayon-e\">setName<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">name<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<div id=\"crayon-5afba6183ea8e030438718-1\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-v\">name<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-e\">name <\/span><span class=\"crayon-st\">or<\/span> <span class=\"crayon-s\">&#8216;noName&#8217;<\/span><\/div>\n<div id=\"crayon-5afba6183ea8e030438718-2\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; &#8230;<\/span><\/div>\n<div id=\"crayon-5afba6183ea8e030438718-3\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u539f\u56e0\uff1a<code>or<\/code>\u4f1a\u5728\u7b2c\u4e00\u6b21\u4e3a<code>true<\/code>\u7684\u65f6\u5019\u65ad\u8def\uff0c\u8fd4\u56de\u5176\u5224\u65ad\u7684\u6700\u540e\u4e00\u4e2a\u503c\u3002\u6240\u4ee5\u5f53<code>name<\/code>\u4e3a\u7a7a\u65f6\uff0c<code>name or 'noName'<\/code>\u8fd4\u56de\u4e3a<code>'noName'<\/code>\uff0c\u8fd9\u4f1a\u5c06<code>name<\/code>\u7684\u503c\u81ea\u52a8\u8bbe\u7f6e\u4e3a<code>noName<\/code>\u3002<\/p>\n<h3 id=\"toc_19\">\u4e00\u884c\u4ee3\u7801\u5b9e\u73b0\u8868\u7684\u62f7\u8d1d<\/h3>\n<div id=\"crayon-5afba6183ea93718081215\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea93718081215-0\">0<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea93718081215-0\" class=\"crayon-line\"><span class=\"crayon-v\">u<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-sy\">{<\/span><span class=\"crayon-r\">unpack<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">)<\/span><span class=\"crayon-sy\">}<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p><strong>\u9700\u8981\u6ce8\u610f\u7684\u662f\u6b64\u6cd5\u5728\u8868\u5185\u6761\u76ee\u5927\u4e8e2000\u65f6\u4f1a\u5931\u6548\u3002<\/strong><\/p>\n<h3 id=\"toc_20\">\u4e00\u884c\u4ee3\u7801\u5224\u65ad\u8868\u662f\u5426\u4e3a\u7a7a<\/h3>\n<p>\u7528<code>#t == 0<\/code>\u5e76\u4e0d\u80fd\u5224\u65ad\u8868\u662f\u5426\u4e3a\u7a7a\uff0c\u56e0\u4e3a<code>#<\/code>\u9884\u7b97\u7b26\u4f1a\u5ffd\u7565\u6240\u6709\u4e0d\u8fde\u7eed\u7684\u6570\u5b57\u4e0b\u6807\u548c\u975e\u6570\u5b57\u4e0b\u6807\u3002<\/p>\n<p>\u6b63\u786e\u505a\u6cd5\u662f\uff1a<\/p>\n<div id=\"crayon-5afba6183ea98430041786\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea98430041786-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea98430041786-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea98430041786-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea98430041786-3\">3<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea98430041786-0\" class=\"crayon-line\"><span class=\"crayon-st\">if<\/span> <span class=\"crayon-e\">next<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">)<\/span> <span class=\"crayon-o\">==<\/span> <span class=\"crayon-r\">nil<\/span> <span class=\"crayon-st\">then<\/span><\/div>\n<div id=\"crayon-5afba6183ea98430041786-1\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; \u8868\u4e3a\u7a7a<\/span><\/div>\n<div id=\"crayon-5afba6183ea98430041786-2\" class=\"crayon-line\"><span class=\"crayon-h\">\u00a0\u00a0\u00a0\u00a0<\/span><span class=\"crayon-c\">&#8212; &#8230;<\/span><\/div>\n<div id=\"crayon-5afba6183ea98430041786-3\" class=\"crayon-line\"><span class=\"crayon-st\">end<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u56e0\u4e3a\u8868\u7684\u952e\u53ef\u80fd\u4e3a<code>false<\/code>\uff0c\u6240\u4ee5\u5fc5\u987b\u4e0e<code>nil<\/code>\u6bd4\u8f83\uff0c\u800c\u4e0d\u76f4\u63a5\u4f7f\u7528<code>~next(t)<\/code>\u6765\u5224\u65ad\u8868\u662f\u5426\u7a7a\u3002<\/p>\n<h3 id=\"toc_21\">\u66f4\u5feb\u7684\u63d2\u5165\u4ee3\u7801<\/h3>\n<div id=\"crayon-5afba6183ea9c239985997\" class=\"crayon-syntax crayon-theme-classic-copy crayon-font-courier-new crayon-os-pc print-yes notranslate\" data-settings=\" no-popup minimize scroll-mouseover expand\">\n<div class=\"crayon-plain-wrap\"><\/div>\n<div class=\"crayon-main\">\n<table class=\"crayon-table\">\n<tbody>\n<tr class=\"crayon-row\">\n<td class=\"crayon-nums \" data-settings=\"hide\">\n<div class=\"crayon-nums-content\">\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea9c239985997-0\">0<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea9c239985997-1\">1<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea9c239985997-2\">2<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea9c239985997-3\">3<\/div>\n<div class=\"crayon-num\" data-line=\"crayon-5afba6183ea9c239985997-4\">4<\/div>\n<\/div>\n<\/td>\n<td class=\"crayon-code\">\n<div class=\"crayon-pre\">\n<div id=\"crayon-5afba6183ea9c239985997-0\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; \u66f4\u6162\uff0c\u4e0d\u63a8\u8350<\/span><\/div>\n<div id=\"crayon-5afba6183ea9c239985997-1\" class=\"crayon-line\"><span class=\"crayon-v\">table<\/span><span class=\"crayon-sy\">.<\/span><span class=\"crayon-e\">insert<\/span><span class=\"crayon-sy\">(<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">,<\/span> <span class=\"crayon-v\">value<\/span><span class=\"crayon-sy\">)<\/span><\/div>\n<div id=\"crayon-5afba6183ea9c239985997-2\" class=\"crayon-line\"><\/div>\n<div id=\"crayon-5afba6183ea9c239985997-3\" class=\"crayon-line\"><span class=\"crayon-c\">&#8212; \u66f4\u5feb\uff0c\u63a8\u8350<\/span><\/div>\n<div id=\"crayon-5afba6183ea9c239985997-4\" class=\"crayon-line\"><span class=\"crayon-v\">t<\/span><span class=\"crayon-sy\">[<\/span><span class=\"crayon-o\">#<\/span><span class=\"crayon-v\">t<\/span><span class=\"crayon-o\">+<\/span><span class=\"crayon-cn\">1<\/span><span class=\"crayon-sy\">]<\/span> <span class=\"crayon-o\">=<\/span> <span class=\"crayon-i\">value<\/span><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<p>\u539f\u56e0\uff1a<code>[]\u548c#<\/code>\u907f\u514d\u4e86\u9ad8\u5c42\u7684\u51fd\u6570\u8c03\u7528\u5f00\u9500\u3002<\/p>\n<h2 id=\"toc_22\">\u53c2\u8003\u8d44\u6599<\/h2>\n<p>\u8fd9\u7bc7\u6587\u7ae0\u662f\u57fa\u4e8e<a href=\"http:\/\/lua-users.org\/wiki\/LuaStyleGuide\">Lua Style Guide<\/a>\u800c\u6765\u3002<\/p>\n<p>\u8bed\u8a00\u7684\u98ce\u683c\u5927\u81f4\u662f\u901a\u7528\u7684\uff0c\u5728Python\u91cc\uff0c\u6709\u4e00\u79cd\u53ebpythonic\u7684\u4ee3\u7801\u98ce\u683c\uff0c\u8be6\u89c1\uff1a<a href=\"http:\/\/wuzhiwei.net\/be_pythonic\/\">\u8ba9\u4f60\u7684python\u4ee3\u7801\u66f4\u52a0pythonic<\/a>\u3002<\/p>\n<p>\u5bf9\u4e8e\u4efb\u4f55\u7a0b\u5e8f\u5458\uff0c\u6211\u90fd\u529b\u8350<a href=\"http:\/\/book.douban.com\/subject\/1477390\/\">\u300a\u4ee3\u7801\u5927\u5168\u300b<\/a>\u8fd9\u672c\u4e66\u3002\u5728\u91cc\u9762\uff0c\u4f60\u53ef\u4ee5\u627e\u5230\u5341\u5206\u5b8c\u5907\u7684\u4ece\u8bbe\u8ba1\uff0c\u67b6\u6784\u5230\u5177\u4f53\u7f16\u7801\uff0c\u6ce8\u91ca\uff0c\u5230\u56e2\u961f\u534f\u4f5c\u7b49\u7b49\u76f8\u5173\u7684\u5f15\u5bfc\u3002<\/p>\n<p>\u8fd8\u6709\u51e0\u672c\u4e66\uff1a<a href=\"http:\/\/book.douban.com\/subject\/5387402\/\">\u300a\u7a0b\u5e8f\u5458\u4fee\u70bc\u4e4b\u9053\u300b<\/a>\uff0c<a href=\"http:\/\/book.douban.com\/subject\/4164024\/\">\u300a\u9ad8\u6548\u7a0b\u5e8f\u5458\u768445\u4e2a\u4e60\u60ef\u300b<\/a>\uff0c<a href=\"http:\/\/book.douban.com\/subject\/4262627\/\">\u300a\u91cd\u6784\u300b<\/a>\u3002\u5b83\u4eec\u53ef\u4ee5\u4f5c\u4e3a\u300a\u4ee3\u7801\u5927\u5168\u300b\u7684\u8865\u96c6\u5b58\u5728\u3002<\/p>\n<p>\u5173\u4e8e\u300a\u9ad8\u6548\u7a0b\u5e8f\u5458\u768445\u4e2a\u4e60\u60ef\u300b\u8fd9\u672c\u4e66\uff0c\u6211\u8fdb\u884c\u4e86\u603b\u7ed3\u548c\u63d0\u70bc\uff0c\u9605\u8bfb\u4e4b\u524d\u4e0d\u59a8\u770b\u770b\u8fd9\u7bc7<a href=\"https:\/\/github.com\/iWoz\/ReadingNotes\/blob\/master\/%E9%AB%98%E6%95%88%E7%A8%8B%E5%BA%8F%E5%91%98%E7%9A%8445%E4%B8%AA%E4%B9%A0%E6%83%AF.md\">\u8bfb\u4e66\u7b14\u8bb0<\/a>\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lua\u4ee3\u7801\u98ce\u683c\u6307\u5357 Posted on <\/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":[118],"class_list":["post-1253","post","type-post","status-publish","format-standard","hentry","tag-02-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1253","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=1253"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}