{"id":7118,"date":"2023-10-23T22:21:53","date_gmt":"2023-10-23T14:21:53","guid":{"rendered":"https:\/\/i007.vip:15443\/wordpress\/?p=7118"},"modified":"2023-10-23T22:21:53","modified_gmt":"2023-10-23T14:21:53","slug":"%e5%9c%a8%e6%b5%8f%e8%a7%88%e5%99%a8%e4%b8%ad%e8%b0%83%e8%af%95","status":"publish","type":"post","link":"https:\/\/i007.cc\/wordpress\/archives\/7118","title":{"rendered":"\u5728\u6d4f\u89c8\u5668\u4e2d\u8c03\u8bd5"},"content":{"rendered":"<header class=\"main__header\">\n<div class=\"main__header-inner\">\n<p class=\"main__header-title\"><a href=\"https:\/\/zh.javascript.info\/debugging-chrome\">cc from<\/a><\/p>\n<\/div>\n<\/header>\n<div class=\"content\">\n<article class=\"formatted\">\n<div><\/div>\n<div>\n<p>\u5728\u7f16\u5199\u66f4\u590d\u6742\u7684\u4ee3\u7801\u524d\uff0c\u8ba9\u6211\u4eec\u5148\u6765\u804a\u804a\u8c03\u8bd5\u5427\u3002<\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Debugging\">\u8c03\u8bd5<\/a>\u00a0\u662f\u6307\u5728\u4e00\u4e2a\u811a\u672c\u4e2d\u627e\u51fa\u5e76\u4fee\u590d\u9519\u8bef\u7684\u8fc7\u7a0b\u3002\u6240\u6709\u7684\u73b0\u4ee3\u6d4f\u89c8\u5668\u548c\u5927\u591a\u6570\u5176\u4ed6\u73af\u5883\u90fd\u652f\u6301\u8c03\u8bd5\u5de5\u5177 \u2014\u2014 \u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u7684\u4e00\u4e2a\u4ee4\u8c03\u8bd5\u66f4\u52a0\u5bb9\u6613\u7684\u7279\u6b8a\u7528\u6237\u754c\u9762\u3002\u5b83\u4e5f\u53ef\u4ee5\u8ba9\u6211\u4eec\u4e00\u6b65\u6b65\u5730\u8ddf\u8e2a\u4ee3\u7801\u4ee5\u67e5\u770b\u5f53\u524d\u5b9e\u9645\u8fd0\u884c\u60c5\u51b5\u3002<\/p>\n<p>\u5728\u8fd9\u91cc\u6211\u4eec\u5c06\u4f1a\u4f7f\u7528 Chrome\uff08\u8c37\u6b4c\u6d4f\u89c8\u5668\uff09\uff0c\u56e0\u4e3a\u5b83\u62e5\u6709\u8db3\u591f\u591a\u7684\u529f\u80fd\uff0c\u5176\u4ed6\u5927\u90e8\u5206\u6d4f\u89c8\u5668\u7684\u529f\u80fd\u4e5f\u4e0e\u4e4b\u7c7b\u4f3c\u3002<\/p>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#zi-yuan-sources-mian-ban\" name=\"zi-yuan-sources-mian-ban\">\u201c\u8d44\u6e90\uff08Sources\uff09\u201d\u9762\u677f<\/a><\/h2>\n<p>\u4f60\u7684 Chrome \u7248\u672c\u53ef\u80fd\u770b\u8d77\u6765\u6709\u4e00\u70b9\u4e0d\u540c\uff0c\u4f46\u662f\u5b83\u5e94\u8be5\u8fd8\u662f\u5904\u4e8e\u5f88\u660e\u663e\u7684\u4f4d\u7f6e\u3002<\/p>\n<ul>\n<li>\u5728 Chrome \u4e2d\u6253\u5f00\u00a0<a href=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/debugging\/index.html\">\u793a\u4f8b\u9875\u9762<\/a>\u3002<\/li>\n<li>\u4f7f\u7528\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">F12<\/kbd>\uff08Mac\uff1a<kbd class=\"shortcut\">Cmd<span class=\"shortcut__plus\">+<\/span>Opt<span class=\"shortcut__plus\">+<\/span>I<\/kbd>\uff09\u6253\u5f00\u5f00\u53d1\u8005\u5de5\u5177\u3002<\/li>\n<li>\u9009\u62e9\u00a0<code>Sources\uff08\u8d44\u6e90\uff09<\/code>\u00a0\u9762\u677f\u3002<\/li>\n<\/ul>\n<p>\u5982\u679c\u4f60\u662f\u7b2c\u4e00\u6b21\u8fd9\u4e48\u505a\uff0c\u90a3\u4f60\u5e94\u8be5\u4f1a\u770b\u5230\u4e0b\u9762\u8fd9\u4e2a\u6837\u5b50\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-open-sources.svg\" type=\"image\/svg+xml\" width=\"697\" height=\"228\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<p>\u5207\u6362\u6309\u94ae\u00a0\u00a0\u4f1a\u6253\u5f00\u6587\u4ef6\u5217\u8868\u7684\u9009\u9879\u5361\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u5728\u9884\u89c8\u6811\u4e2d\u70b9\u51fb\u548c\u9009\u62e9\u00a0<code>hello.js<\/code>\u3002\u8fd9\u91cc\u5e94\u8be5\u4f1a\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-tabs.svg\" type=\"image\/svg+xml\" width=\"694\" height=\"225\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<p>\u8d44\u6e90\uff08Sources\uff09\u9762\u677f\u5305\u542b\u4e09\u4e2a\u90e8\u5206\uff1a<\/p>\n<ol>\n<li><strong>\u6587\u4ef6\u5bfc\u822a\uff08File Navigator\uff09<\/strong>\u00a0\u533a\u57df\u5217\u51fa\u4e86 HTML\u3001JavaScript\u3001CSS \u548c\u5305\u62ec\u56fe\u7247\u5728\u5185\u7684\u5176\u4ed6\u4f9d\u9644\u4e8e\u6b64\u9875\u9762\u7684\u6587\u4ef6\u3002Chrome \u6269\u5c55\u7a0b\u5e8f\u4e5f\u4f1a\u663e\u793a\u5728\u8fd9\u3002<\/li>\n<li><strong>\u4ee3\u7801\u7f16\u8f91\uff08Code Editor\uff09<\/strong>\u00a0\u533a\u57df\u5c55\u793a\u6e90\u7801\u3002<\/li>\n<li><strong>JavaScript \u8c03\u8bd5\uff08JavaScript Debugging\uff09<\/strong>\u00a0\u533a\u57df\u662f\u7528\u4e8e\u8c03\u8bd5\u7684\uff0c\u6211\u4eec\u5f88\u5feb\u5c31\u4f1a\u6765\u63a2\u7d22\u5b83\u3002<\/li>\n<\/ol>\n<p>\u73b0\u5728\u4f60\u53ef\u4ee5\u518d\u6b21\u70b9\u51fb\u5207\u6362\u6309\u94ae\u00a0\u00a0\u9690\u85cf\u8d44\u6e90\u5217\u8868\u6765\u7ed9\u4ee3\u7801\u817e\u51fa\u4e00\u4e9b\u7a7a\u95f4\u3002<\/p>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#kong-zhi-tai-console\" name=\"kong-zhi-tai-console\">\u63a7\u5236\u53f0\uff08Console\uff09<\/a><\/h2>\n<p>\u5982\u679c\u6211\u4eec\u6309\u4e0b\u00a0<kbd class=\"shortcut\">Esc<\/kbd>\uff0c\u4e0b\u9762\u4f1a\u51fa\u73b0\u4e00\u4e2a\u63a7\u5236\u53f0\uff0c\u6211\u4eec\u53ef\u4ee5\u8f93\u5165\u4e00\u4e9b\u547d\u4ee4\u7136\u540e\u6309\u4e0b\u00a0<kbd class=\"shortcut\">Enter<\/kbd>\u00a0\u6765\u6267\u884c\u3002<\/p>\n<p>\u8bed\u53e5\u6267\u884c\u5b8c\u6bd5\u4e4b\u540e\uff0c\u5176\u6267\u884c\u7ed3\u679c\u4f1a\u663e\u793a\u5728\u4e0b\u9762\u3002<\/p>\n<p>\u4f8b\u5982\uff0c<code>1+2<\/code>\u00a0\u5c06\u4f1a\u8fd4\u56de\u00a0<code>3<\/code>\uff0c\u800c\u00a0<code>hello(\"debugger\")<\/code>\u00a0\u51fd\u6570\u8c03\u7528\u4ec0\u4e48\u4e5f\u6ca1\u8fd4\u56de\uff0c\u6240\u4ee5\u7ed3\u679c\u662f\u00a0<code>undefined<\/code>\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-sources-console.svg\" type=\"image\/svg+xml\" width=\"693\" height=\"156\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#duan-dian-breakpoints\" name=\"duan-dian-breakpoints\">\u65ad\u70b9\uff08Breakpoints\uff09<\/a><\/h2>\n<p>\u6211\u4eec\u6765\u770b\u770b\u00a0<a href=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/debugging\/index.html\">\u793a\u4f8b\u9875\u9762<\/a>\u00a0\u53d1\u751f\u4e86\u4ec0\u4e48\u3002\u5728\u00a0<code>hello.js<\/code>\u00a0\u4e2d\uff0c\u70b9\u51fb\u7b2c\u00a0<code>4<\/code>\u00a0\u884c\u3002\u662f\u7684\uff0c\u5c31\u70b9\u51fb\u6570\u5b57\u00a0<code>\"4\"<\/code>\u00a0\u4e0a\uff0c\u4e0d\u662f\u70b9\u51fb\u4ee3\u7801\u3002<\/p>\n<p>\u606d\u559c\u4f60\uff01\u4f60\u5df2\u7ecf\u8bbe\u7f6e\u4e86\u4e00\u4e2a\u65ad\u70b9\u3002\u73b0\u5728\uff0c\u8bf7\u5728\u7b2c\u00a0<code>8<\/code>\u00a0\u884c\u7684\u6570\u5b57\u4e0a\u4e5f\u70b9\u51fb\u4e00\u4e0b\u3002<\/p>\n<p>\u770b\u8d77\u6765\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff08\u84dd\u8272\u662f\u4f60\u5e94\u8be5\u70b9\u51fb\u7684\u5730\u65b9\uff09\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-sources-breakpoint.svg\" type=\"image\/svg+xml\" width=\"697\" height=\"244\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<p><strong>\u65ad\u70b9<\/strong>\u00a0\u662f\u8c03\u8bd5\u5668\u4f1a\u81ea\u52a8\u6682\u505c JavaScript \u6267\u884c\u7684\u5730\u65b9\u3002<\/p>\n<p>\u5f53\u4ee3\u7801\u88ab\u6682\u505c\u65f6\uff0c\u6211\u4eec\u53ef\u4ee5\u68c0\u67e5\u5f53\u524d\u7684\u53d8\u91cf\uff0c\u5728\u63a7\u5236\u53f0\u6267\u884c\u547d\u4ee4\u7b49\u7b49\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u4eec\u53ef\u4ee5\u8c03\u8bd5\u5b83\u3002<\/p>\n<p>\u6211\u4eec\u603b\u662f\u53ef\u4ee5\u5728\u53f3\u4fa7\u7684\u9762\u677f\u4e2d\u627e\u5230\u65ad\u70b9\u7684\u5217\u8868\u3002\u5f53\u6211\u4eec\u5728\u6570\u4e2a\u6587\u4ef6\u4e2d\u6709\u8bb8\u591a\u65ad\u70b9\u65f6\uff0c\u8fd9\u662f\u975e\u5e38\u6709\u7528\u7684\u3002\u5b83\u5141\u8bb8\u6211\u4eec\uff1a<\/p>\n<ul>\n<li>\u5feb\u901f\u8df3\u8f6c\u81f3\u4ee3\u7801\u4e2d\u7684\u65ad\u70b9\uff08\u901a\u8fc7\u70b9\u51fb\u53f3\u4fa7\u9762\u677f\u4e2d\u7684\u5bf9\u5e94\u7684\u65ad\u70b9\uff09\u3002<\/li>\n<li>\u901a\u8fc7\u53d6\u6d88\u9009\u4e2d\u65ad\u70b9\u6765\u4e34\u65f6\u7981\u7528\u5bf9\u5e94\u7684\u65ad\u70b9\u3002<\/li>\n<li>\u901a\u8fc7\u53f3\u952e\u5355\u51fb\u5e76\u9009\u62e9\u79fb\u9664\u6765\u5220\u9664\u4e00\u4e2a\u65ad\u70b9\u3002<\/li>\n<li>\u2026\u2026\u7b49\u7b49\u3002<\/li>\n<\/ul>\n<div class=\"important important_smart\">\n<div class=\"important__header\"><span class=\"important__type\">\u6761\u4ef6\u65ad\u70b9<\/span><\/div>\n<div class=\"important__content\">\n<p>\u5728\u884c\u53f7\u4e0a\u00a0<strong>\u53f3\u952e\u5355\u51fb<\/strong>\u00a0\u5141\u8bb8\u4f60\u521b\u5efa\u4e00\u4e2a\u00a0<strong>\u6761\u4ef6<\/strong>\u00a0\u65ad\u70b9\u3002\u53ea\u6709\u5f53\u7ed9\u5b9a\u7684\u8868\u8fbe\u5f0f\uff08\u4f60\u521b\u5efa\u6761\u4ef6\u65ad\u70b9\u65f6\u63d0\u4f9b\u7684\u8868\u8fbe\u5f0f\uff09\u4e3a\u771f\u65f6\u624d\u4f1a\u88ab\u89e6\u53d1\u3002<\/p>\n<p>\u5f53\u6211\u4eec\u9700\u8981\u5728\u7279\u5b9a\u7684\u53d8\u91cf\u503c\u6216\u53c2\u6570\u7684\u60c5\u51b5\u4e0b\u6682\u505c\u7a0b\u5e8f\u6267\u884c\u65f6\uff0c\u8fd9\u79cd\u8c03\u8bd5\u65b9\u6cd5\u5c31\u5f88\u6709\u7528\u4e86\u3002<\/p>\n<\/div>\n<\/div>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#debugger-ming-ling\" name=\"debugger-ming-ling\">\u201cdebugger\u201d \u547d\u4ee4<\/a><\/h2>\n<p>\u6211\u4eec\u4e5f\u53ef\u4ee5\u4f7f\u7528\u00a0<code>debugger<\/code>\u00a0\u547d\u4ee4\u6765\u6682\u505c\u4ee3\u7801\uff0c\u50cf\u8fd9\u6837\uff1a<\/p>\n<div id=\"svqc35epxw\" class=\"code-example\" data-trusted=\"1\" data-highlight=\"[{&quot;start&quot;:3,&quot;end&quot;:3}]\" data-prism-highlighted=\"1\">\n<div class=\"codebox code-example__codebox\">\n<div class=\"codebox__code\" data-code=\"1\">\n<pre class=\"line-numbers  language-javascript\" tabindex=\"0\"><code class=\" language-javascript\"><code class=\"token keyword\">function<\/code> <code class=\"token function\">hello<\/code><code class=\"token punctuation\">(<\/code><code class=\"token parameter\">name<\/code><code class=\"token punctuation\">)<\/code> <code class=\"token punctuation\">{<\/code> <code class=\"token keyword\">let<\/code> phrase <code class=\"token operator\">=<\/code> <code class=\"token template-string\"><code class=\"token template-punctuation string\">`<\/code><code class=\"token string\">Hello, <\/code><code class=\"token interpolation\"><code class=\"token interpolation-punctuation punctuation\">${<\/code>name<code class=\"token interpolation-punctuation punctuation\">}<\/code><\/code><code class=\"token string\">!<\/code><code class=\"token template-punctuation string\">`<\/code><\/code><code class=\"token punctuation\">;<\/code> <\/code><\/pre>\n<p><em class=\"block-highlight\"> <code class=\"token keyword\">debugger<\/code><code class=\"token punctuation\">;<\/code> <code class=\"token comment\">\/\/ &lt;-- \u8c03\u8bd5\u5668\u4f1a\u5728\u8fd9\u505c\u6b62<\/code><\/em><\/p>\n<pre class=\"line-numbers  language-javascript\" tabindex=\"0\"><code class=\" language-javascript\"> <code class=\"token function\">say<\/code><code class=\"token punctuation\">(<\/code>phrase<code class=\"token punctuation\">)<\/code><code class=\"token punctuation\">;<\/code> <code class=\"token punctuation\">}<\/code><\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>\u8fd9\u6837\u7684\u547d\u4ee4\u53ea\u6709\u5728\u5f00\u53d1\u8005\u5de5\u5177\u6253\u5f00\u65f6\u624d\u6709\u6548\uff0c\u5426\u5219\u6d4f\u89c8\u5668\u4f1a\u5ffd\u7565\u5b83\u3002<\/p>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#zan-ting-bing-cha-kan\" name=\"zan-ting-bing-cha-kan\">\u6682\u505c\u5e76\u67e5\u770b<\/a><\/h2>\n<p>\u5728\u6211\u4eec\u7684\u4f8b\u5b50\u4e2d\uff0c<code>hello()<\/code>\u00a0\u51fd\u6570\u5728\u9875\u9762\u52a0\u8f7d\u671f\u95f4\u88ab\u8c03\u7528\uff0c\u56e0\u6b64\u6fc0\u6d3b\u8c03\u8bd5\u5668\u7684\u6700\u7b80\u5355\u7684\u65b9\u6cd5\uff08\u5728\u6211\u4eec\u5df2\u7ecf\u8bbe\u7f6e\u4e86\u65ad\u70b9\u540e\uff09\u5c31\u662f \u2014\u2014 \u91cd\u65b0\u52a0\u8f7d\u9875\u9762\u3002\u56e0\u6b64\u8ba9\u6211\u4eec\u6309\u4e0b\u00a0<kbd class=\"shortcut\">F5<\/kbd>\uff08Windows\uff0cLinux\uff09\u6216\u00a0<kbd class=\"shortcut\">Cmd<span class=\"shortcut__plus\">+<\/span>R<\/kbd>\uff08Mac\uff09\u5427\u3002<\/p>\n<p>\u8bbe\u7f6e\u65ad\u70b9\u4e4b\u540e\uff0c\u7a0b\u5e8f\u4f1a\u5728\u7b2c 4 \u884c\u6682\u505c\u6267\u884c\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-sources-debugger-pause.svg\" type=\"image\/svg+xml\" width=\"700\" height=\"304\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<p>\u8bf7\u6253\u5f00\u53f3\u4fa7\u7684\u4fe1\u606f\u4e0b\u62c9\u5217\u8868\uff08\u7bad\u5934\u6307\u793a\u51fa\u7684\u5730\u65b9\uff09\u3002\u8fd9\u91cc\u5141\u8bb8\u4f60\u67e5\u770b\u5f53\u524d\u7684\u4ee3\u7801\u72b6\u6001\uff1a<\/p>\n<ol>\n<li><strong><code>\u5bdf\u770b\uff08Watch\uff09<\/code>\u00a0\u2014\u2014 \u663e\u793a\u4efb\u610f\u8868\u8fbe\u5f0f\u7684\u5f53\u524d\u503c\u3002<\/strong>\n<p>\u4f60\u53ef\u4ee5\u70b9\u51fb\u52a0\u53f7\u00a0<code>+<\/code>\u00a0\u7136\u540e\u8f93\u5165\u4e00\u4e2a\u8868\u8fbe\u5f0f\u3002\u8c03\u8bd5\u5668\u5c06\u663e\u793a\u5b83\u7684\u503c\uff0c\u5e76\u5728\u6267\u884c\u8fc7\u7a0b\u4e2d\u81ea\u52a8\u91cd\u65b0\u8ba1\u7b97\u8be5\u8868\u8fbe\u5f0f\u3002<\/li>\n<li><strong><code>\u8c03\u7528\u6808\uff08Call Stack\uff09<\/code>\u00a0\u2014\u2014 \u663e\u793a\u5d4c\u5957\u7684\u8c03\u7528\u94fe\u3002<\/strong>\n<p>\u6b64\u65f6\uff0c\u8c03\u8bd5\u5668\u6b63\u5728\u00a0<code>hello()<\/code>\u00a0\u7684\u8c03\u7528\u94fe\u4e2d\uff0c\u88ab\u00a0<code>index.html<\/code>\u00a0\u4e2d\u7684\u4e00\u4e2a\u811a\u672c\u8c03\u7528\uff08\u8fd9\u91cc\u6ca1\u6709\u51fd\u6570\uff0c\u56e0\u6b64\u663e\u793a \u201canonymous\u201d\uff09<\/p>\n<p>\u5982\u679c\u4f60\u70b9\u51fb\u4e86\u4e00\u4e2a\u5806\u6808\u9879\uff0c\u8c03\u8bd5\u5668\u5c06\u8df3\u5230\u5bf9\u5e94\u7684\u4ee3\u7801\u5904\uff0c\u5e76\u4e14\u8fd8\u53ef\u4ee5\u67e5\u770b\u5176\u6240\u6709\u53d8\u91cf\u3002<\/li>\n<li><strong><code>\u4f5c\u7528\u57df\uff08Scope\uff09<\/code>\u00a0\u2014\u2014 \u663e\u793a\u5f53\u524d\u7684\u53d8\u91cf\u3002<\/strong>\n<p><code>Local<\/code>\u00a0\u663e\u793a\u5f53\u524d\u51fd\u6570\u4e2d\u7684\u53d8\u91cf\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5728\u6e90\u4ee3\u7801\u4e2d\u770b\u5230\u5b83\u4eec\u7684\u503c\u9ad8\u4eae\u663e\u793a\u4e86\u51fa\u6765\u3002<\/p>\n<p><code>Global<\/code>\u00a0\u663e\u793a\u5168\u5c40\u53d8\u91cf\uff08\u4e0d\u5728\u4efb\u4f55\u51fd\u6570\u4e2d\uff09\u3002<\/p>\n<p>\u8fd9\u91cc\u8fd8\u6709\u4e00\u4e2a\u00a0<code>this<\/code>\u00a0\u5173\u952e\u5b57\uff0c\u76ee\u524d\u6211\u4eec\u8fd8\u6ca1\u6709\u5b66\u5230\u5b83\uff0c\u4e0d\u8fc7\u6211\u4eec\u5f88\u5feb\u5c31\u4f1a\u5b66\u4e60\u5b83\u4e86\u3002<\/li>\n<\/ol>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#gen-zong-zhi-hang\" name=\"gen-zong-zhi-hang\">\u8ddf\u8e2a\u6267\u884c<\/a><\/h2>\n<p>\u73b0\u5728\u662f\u00a0<strong>\u8ddf\u8e2a<\/strong>\u00a0\u811a\u672c\u7684\u65f6\u5019\u4e86\u3002<\/p>\n<p>\u5728\u53f3\u4fa7\u9762\u677f\u7684\u9876\u90e8\u662f\u4e00\u4e9b\u5173\u4e8e\u8ddf\u8e2a\u811a\u672c\u7684\u6309\u94ae\u3002\u8ba9\u6211\u4eec\u6765\u4f7f\u7528\u5b83\u4eec\u5427\u3002<\/p>\n<dl>\n<dt>\u00a0\u2014\u2014 \u201c\u6062\u590d\uff08Resume\uff09\u201d\uff1a\u7ee7\u7eed\u6267\u884c\uff0c\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">F8<\/kbd>\u3002<\/dt>\n<dd>\u7ee7\u7eed\u6267\u884c\u3002\u5982\u679c\u6ca1\u6709\u5176\u4ed6\u7684\u65ad\u70b9\uff0c\u90a3\u4e48\u7a0b\u5e8f\u5c31\u4f1a\u7ee7\u7eed\u6267\u884c\uff0c\u5e76\u4e14\u8c03\u8bd5\u5668\u4e0d\u4f1a\u518d\u63a7\u5236\u7a0b\u5e8f\u3002<\/p>\n<p>\u6211\u4eec\u70b9\u51fb\u5b83\u4e00\u4e0b\u4e4b\u540e\uff0c\u6211\u4eec\u4f1a\u770b\u5230\u8fd9\u6837\u7684\u60c5\u51b5\uff1a<\/p>\n<figure>\n<div class=\"image\">\n<div class=\"image__ratio\"><\/div>\n<p><object class=\"image__image\" data=\"https:\/\/zh.javascript.info\/article\/debugging-chrome\/chrome-sources-debugger-trace-1.svg\" type=\"image\/svg+xml\" width=\"698\" height=\"310\" data-use-theme=\"\" data-mce-fragment=\"1\"><\/object><\/div>\n<\/figure>\n<p>\u6267\u884c\u6062\u590d\u4e86\uff0c\u6267\u884c\u5230\u00a0<code>say()<\/code>\u00a0\u51fd\u6570\u4e2d\u7684\u53e6\u5916\u4e00\u4e2a\u65ad\u70b9\u540e\u6682\u505c\u5728\u4e86\u90a3\u91cc\u3002\u770b\u4e00\u4e0b\u53f3\u8fb9\u7684 \u201cCall stack\u201d\u3002\u5b83\u5df2\u7ecf\u589e\u52a0\u4e86\u4e00\u4e2a\u8c03\u7528\u4fe1\u606f\u3002\u6211\u4eec\u73b0\u5728\u5728\u00a0<code>say()<\/code>\u00a0\u91cc\u9762\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u201c\u4e0b\u4e00\u6b65\uff08Step\uff09\u201d\uff1a\u8fd0\u884c\u4e0b\u4e00\u6761\uff08\u5373\u5f53\u524d\u884c\uff09\u6307\u4ee4\uff0c\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">F9<\/kbd>\u3002<\/dt>\n<dd>\u8fd0\u884c\u4e0b\u4e00\u6761\u8bed\u53e5\u3002\u5982\u679c\u6211\u4eec\u73b0\u5728\u70b9\u51fb\u5b83\uff0c<code>alert<\/code>\u00a0\u4f1a\u88ab\u663e\u793a\u51fa\u6765\u3002<\/p>\n<p>\u4e00\u6b21\u63a5\u4e00\u6b21\u5730\u70b9\u51fb\u6b64\u6309\u94ae\uff0c\u6574\u4e2a\u811a\u672c\u7684\u6240\u6709\u8bed\u53e5\u4f1a\u88ab\u9010\u4e2a\u6267\u884c\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u201c\u8de8\u6b65\uff08Step over\uff09\u201d\uff1a\u8fd0\u884c\u4e0b\u4e00\u6761\uff08\u5373\u5f53\u524d\u884c\uff09\u6307\u4ee4\uff0c\u4f46\u00a0<strong>\u4e0d\u4f1a\u8fdb\u5165\u5230\u4e00\u4e2a\u51fd\u6570\u4e2d<\/strong>\uff0c\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">F10<\/kbd>\u3002<\/dt>\n<dd>\u8ddf\u4e0a\u4e00\u6761\u547d\u4ee4\u201c\u4e0b\u4e00\u6b65\uff08Step\uff09\u201d\u7c7b\u4f3c\uff0c\u4f46\u5982\u679c\u4e0b\u4e00\u6761\u8bed\u53e5\u662f\u51fd\u6570\u8c03\u7528\u5219\u8868\u73b0\u4e0d\u540c\u3002\u8fd9\u91cc\u7684\u51fd\u6570\u6307\u7684\u662f\uff1a\u4e0d\u662f\u5185\u5efa\u7684\u5982\u00a0<code>alert<\/code>\u00a0\u51fd\u6570\u7b49\uff0c\u800c\u662f\u6211\u4eec\u81ea\u5df1\u5199\u7684\u51fd\u6570\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u5bf9\u6bd4\u4e00\u4e0b\uff0c\u201c\u4e0b\u4e00\u6b65\uff08Step\uff09\u201d\u547d\u4ee4\u4f1a\u8fdb\u5165\u5d4c\u5957\u51fd\u6570\u8c03\u7528\u5e76\u5728\u5176\u7b2c\u4e00\u884c\u6682\u505c\u6267\u884c\uff0c\u800c\u201c\u8de8\u6b65\uff08Step over\uff09\u201d\u5bf9\u6211\u4eec\u4e0d\u53ef\u89c1\u5730\u6267\u884c\u5d4c\u5957\u51fd\u6570\u8c03\u7528\uff0c\u8df3\u8fc7\u4e86\u51fd\u6570\u5185\u90e8\u3002<\/p>\n<p>\u6267\u884c\u4f1a\u5728\u8be5\u51fd\u6570\u8c03\u7528\u540e\u7acb\u5373\u6682\u505c\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u5bf9\u8be5\u51fd\u6570\u7684\u5185\u90e8\u6267\u884c\u4e0d\u611f\u5174\u8da3\uff0c\u8fd9\u547d\u4ee4\u4f1a\u5f88\u6709\u7528\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u201c\u6b65\u5165\uff08Step into\uff09\u201d\uff0c\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">F11<\/kbd>\u3002<\/dt>\n<dd>\u548c\u201c\u4e0b\u4e00\u6b65\uff08Step\uff09\u201d\u7c7b\u4f3c\uff0c\u4f46\u5728\u5f02\u6b65\u51fd\u6570\u8c03\u7528\u60c5\u51b5\u4e0b\u8868\u73b0\u4e0d\u540c\u3002\u5982\u679c\u4f60\u521a\u521a\u624d\u5f00\u59cb\u5b66 JavaScript\uff0c\u90a3\u4e48\u4f60\u53ef\u4ee5\u5148\u5ffd\u7565\u6b64\u5dee\u5f02\uff0c\u56e0\u4e3a\u6211\u4eec\u8fd8\u6ca1\u6709\u7528\u5230\u5f02\u6b65\u8c03\u7528\u3002<\/p>\n<p>\u81f3\u4e8e\u4e4b\u540e\uff0c\u53ea\u9700\u8981\u8bb0\u4f4f\u201c\u4e0b\u4e00\u6b65\uff08Step\uff09\u201d\u547d\u4ee4\u4f1a\u5ffd\u7565\u5f02\u6b65\u884c\u4e3a\uff0c\u4f8b\u5982\u00a0<code>setTimeout<\/code>\uff08\u8ba1\u5212\u7684\u51fd\u6570\u8c03\u7528\uff09\uff0c\u5b83\u4f1a\u8fc7\u4e00\u6bb5\u65f6\u95f4\u518d\u6267\u884c\u3002\u800c\u201c\u6b65\u5165\uff08Step into\uff09\u201d\u4f1a\u8fdb\u5165\u5230\u4ee3\u7801\u4e2d\u5e76\u7b49\u5f85\uff08\u5982\u679c\u9700\u8981\uff09\u3002\u8be6\u89c1\u00a0<a href=\"https:\/\/developers.google.com\/web\/updates\/2018\/01\/devtools#async\">DevTools \u624b\u518c<\/a>\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u201c\u6b65\u51fa\uff08Step out\uff09\u201d\uff1a\u7ee7\u7eed\u6267\u884c\u5230\u5f53\u524d\u51fd\u6570\u7684\u672b\u5c3e\uff0c\u5feb\u6377\u952e\u00a0<kbd class=\"shortcut\">Shift<span class=\"shortcut__plus\">+<\/span>F11<\/kbd>\u3002<\/dt>\n<dd>\u7ee7\u7eed\u6267\u884c\u5f53\u524d\u51fd\u6570\u5185\u7684\u5269\u4f59\u4ee3\u7801\uff0c\u5e76\u6682\u505c\u5728\u8c03\u7528\u5f53\u524d\u51fd\u6570\u7684\u4e0b\u4e00\u884c\u4ee3\u7801\u5904\u3002\u5f53\u6211\u4eec\u4f7f\u7528\u00a0\u00a0\u5076\u7136\u5730\u8fdb\u5165\u5230\u4e00\u4e2a\u5d4c\u5957\u8c03\u7528\uff0c\u4f46\u662f\u6211\u4eec\u53c8\u5bf9\u8fd9\u4e2a\u51fd\u6570\u4e0d\u611f\u5174\u8da3\u65f6\uff0c\u6211\u4eec\u60f3\u8981\u5c3d\u53ef\u80fd\u7684\u7ee7\u7eed\u6267\u884c\u5230\u6700\u540e\u7684\u65f6\u5019\u662f\u975e\u5e38\u65b9\u4fbf\u7684\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u542f\u7528\/\u7981\u7528\u6240\u6709\u7684\u65ad\u70b9\u3002<\/dt>\n<dd>\u8fd9\u4e2a\u6309\u94ae\u4e0d\u4f1a\u5f71\u54cd\u7a0b\u5e8f\u7684\u6267\u884c\u3002\u53ea\u662f\u4e00\u4e2a\u6279\u91cf\u64cd\u4f5c\u65ad\u70b9\u7684\u5f00\/\u5173\u3002<\/dd>\n<dt>\u00a0\u2014\u2014 \u542f\u7528\/\u7981\u7528\u51fa\u73b0\u9519\u8bef\u65f6\u81ea\u52a8\u6682\u505c\u811a\u672c\u6267\u884c\u3002<\/dt>\n<dd>\u5f53\u542f\u52a8\u6b64\u529f\u80fd\uff0c\u5982\u679c\u5f00\u53d1\u8005\u5de5\u5177\u662f\u6253\u5f00\u7740\u7684\u65f6\u5019\uff0c\u4efb\u4f55\u811a\u672c\u6267\u884c\u9519\u8bef\u90fd\u4f1a\u5bfc\u81f4\u8be5\u811a\u672c\u6267\u884c\u81ea\u52a8\u6682\u505c\u3002\u7136\u540e\u6211\u4eec\u53ef\u4ee5\u5728\u8c03\u8bd5\u5668\u4e2d\u5206\u6790\u53d8\u91cf\u6765\u770b\u4e00\u4e0b\u4ec0\u4e48\u51fa\u9519\u4e86\u3002\u56e0\u6b64\u5982\u679c\u6211\u4eec\u7684\u811a\u672c\u56e0\u4e3a\u9519\u8bef\u6302\u6389\u7684\u65f6\u5019\uff0c\u6211\u4eec\u53ef\u4ee5\u6253\u5f00\u8c03\u8bd5\u5668\uff0c\u542f\u7528\u8fd9\u4e2a\u9009\u9879\u7136\u540e\u91cd\u8f7d\u9875\u9762\uff0c\u67e5\u770b\u4e00\u4e0b\u54ea\u91cc\u5bfc\u81f4\u5b83\u6302\u6389\u4e86\u548c\u5f53\u65f6\u7684\u4e0a\u4e0b\u6587\u662f\u4ec0\u4e48\u3002<\/dd>\n<\/dl>\n<div class=\"important important_smart\">\n<div class=\"important__header\"><span class=\"important__type\">Continue to here<\/span><\/div>\n<div class=\"important__content\">\n<p>\u5728\u4ee3\u7801\u4e2d\u7684\u67d0\u4e00\u884c\u4e0a\u53f3\u952e\uff0c\u5728\u663e\u793a\u7684\u5173\u8054\u83dc\u5355\uff08context menu\uff09\u4e2d\u70b9\u51fb\u4e00\u4e2a\u975e\u5e38\u6709\u7528\u7684\u540d\u4e3a \u201cContinue to here\u201d \u7684\u9009\u9879\u3002<\/p>\n<p>\u5f53\u4f60\u60f3\u8981\u5411\u524d\u79fb\u52a8\u5f88\u591a\u6b65\u5230\u67d0\u4e00\u884c\u4e3a\u6b62\uff0c\u4f46\u662f\u53c8\u61d2\u5f97\u8bbe\u7f6e\u4e00\u4e2a\u65ad\u70b9\u65f6\u975e\u5e38\u7684\u65b9\u4fbf\u3002<\/p>\n<\/div>\n<\/div>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#ri-zhi-ji-lu\" name=\"ri-zhi-ji-lu\">\u65e5\u5fd7\u8bb0\u5f55<\/a><\/h2>\n<p>\u60f3\u8981\u8f93\u51fa\u4e00\u4e9b\u4e1c\u897f\u5230\u63a7\u5236\u53f0\u4e0a\uff1f<code>console.log<\/code>\u00a0\u51fd\u6570\u53ef\u4ee5\u6ee1\u8db3\u4f60\u3002<\/p>\n<p>\u4f8b\u5982\uff1a\u5c06\u4ece\u00a0<code>0<\/code>\u00a0\u5230\u00a0<code>4<\/code>\u00a0\u7684\u503c\u8f93\u51fa\u5230\u63a7\u5236\u53f0\u4e0a\uff1a<\/p>\n<div id=\"9zkmn1wm51\" class=\"code-example\" data-trusted=\"1\" data-prism-highlighted=\"1\">\n<div class=\"codebox code-example__codebox\">\n<div class=\"toolbar codebox__toolbar\">\n<div class=\"toolbar__tool\"><\/div>\n<div class=\"toolbar__tool\"><\/div>\n<\/div>\n<div class=\"codebox__code\" data-code=\"1\">\n<pre class=\"line-numbers  language-javascript\" tabindex=\"0\"><code class=\" language-javascript\"><code class=\"token comment\">\/\/ \u6253\u5f00\u63a7\u5236\u53f0\u6765\u67e5\u770b<\/code> <code class=\"token keyword\">for<\/code> <code class=\"token punctuation\">(<\/code><code class=\"token keyword\">let<\/code> i <code class=\"token operator\">=<\/code> <code class=\"token number\">0<\/code><code class=\"token punctuation\">;<\/code> i <code class=\"token operator\">&lt;<\/code> <code class=\"token number\">5<\/code><code class=\"token punctuation\">;<\/code> i<code class=\"token operator\">++<\/code><code class=\"token punctuation\">)<\/code> <code class=\"token punctuation\">{<\/code> console<code class=\"token punctuation\">.<\/code><code class=\"token function\">log<\/code><code class=\"token punctuation\">(<\/code><code class=\"token string\">\"value\"<\/code><code class=\"token punctuation\">,<\/code> i<code class=\"token punctuation\">)<\/code><code class=\"token punctuation\">;<\/code> <code class=\"token punctuation\">}<\/code><\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<p>\u666e\u901a\u7528\u6237\u770b\u4e0d\u5230\u8fd9\u4e2a\u8f93\u51fa\uff0c\u5b83\u662f\u5728\u63a7\u5236\u53f0\u91cc\u9762\u7684\u3002\u8981\u60f3\u770b\u5230\u5b83 \u2014\u2014 \u8981\u4e48\u6253\u5f00\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u7684 Console\uff08\u63a7\u5236\u53f0\uff09\u9009\u9879\u5361\uff0c\u8981\u4e48\u5728\u4e00\u4e2a\u5176\u4ed6\u7684\u9009\u9879\u5361\u4e2d\u6309\u4e0b\u00a0<kbd class=\"shortcut\">Esc<\/kbd>\uff1a\u8fd9\u4f1a\u5728\u4e0b\u65b9\u6253\u5f00\u4e00\u4e2a\u63a7\u5236\u53f0\u3002<\/p>\n<p>\u5982\u679c\u6211\u4eec\u5728\u4ee3\u7801\u4e2d\u6709\u8db3\u591f\u7684\u65e5\u5fd7\u8bb0\u5f55\uff0c\u90a3\u4e48\u6211\u4eec\u53ef\u4ee5\u4ece\u8bb0\u5f55\u4e2d\u770b\u5230\u521a\u521a\u53d1\u751f\u4e86\u4ec0\u4e48\uff0c\u800c\u4e0d\u9700\u8981\u501f\u52a9\u8c03\u8bd5\u5668\u3002<\/p>\n<h2><a class=\"main__anchor\" href=\"https:\/\/zh.javascript.info\/debugging-chrome#zong-jie\" name=\"zong-jie\">\u603b\u7ed3<\/a><\/h2>\n<p>\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0c\u8fd9\u91cc\u6709 3 \u79cd\u65b9\u5f0f\u6765\u6682\u505c\u4e00\u4e2a\u811a\u672c\uff1a<\/p>\n<ol>\n<li>\u65ad\u70b9\u3002<\/li>\n<li><code>debugger<\/code>\u00a0\u8bed\u53e5\u3002<\/li>\n<li>error\uff08\u5982\u679c\u5f00\u53d1\u8005\u5de5\u5177\u662f\u6253\u5f00\u72b6\u6001\uff0c\u5e76\u4e14\u6309\u94ae\u00a0\u00a0\u662f\u5f00\u542f\u7684\u72b6\u6001\uff09\u3002<\/li>\n<\/ol>\n<p>\u5f53\u811a\u672c\u6267\u884c\u6682\u505c\u65f6\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u8fdb\u884c\u8c03\u8bd5\uff1a\u68c0\u67e5\u53d8\u91cf\uff0c\u8ddf\u8e2a\u4ee3\u7801\u6765\u67e5\u770b\u6267\u884c\u51fa\u9519\u7684\u4f4d\u7f6e\u3002<\/p>\n<p>\u5f00\u53d1\u4eba\u5458\u5de5\u5177\u4e2d\u7684\u9009\u9879\u6bd4\u672c\u6587\u4ecb\u7ecd\u7684\u591a\u5f97\u591a\u3002\u5b8c\u6574\u7684\u624b\u518c\u8bf7\u70b9\u51fb\u8fd9\u4e2a\u94fe\u63a5\u67e5\u770b\uff1a<a href=\"https:\/\/developers.google.com\/web\/tools\/chrome-devtools\">https:\/\/developers.google.com\/web\/tools\/chrome-devtools<\/a>\u3002<\/p>\n<p>\u672c\u7ae0\u8282\u7684\u5185\u5bb9\u8db3\u591f\u8ba9\u4f60\u4e0a\u624b\u4ee3\u7801\u8c03\u8bd5\u4e86\uff0c\u4f46\u662f\u4e4b\u540e\uff0c\u5c24\u5176\u662f\u4f60\u505a\u4e86\u5927\u91cf\u5173\u4e8e\u6d4f\u89c8\u5668\u7684\u4e1c\u897f\u540e\uff0c\u63a8\u8350\u4f60\u67e5\u770b\u4e0a\u9762\u90a3\u4e2a\u94fe\u63a5\u4e2d\u8bb2\u7684\u5f00\u53d1\u8005\u5de5\u5177\u66f4\u9ad8\u7ea7\u7684\u529f\u80fd\u3002<\/p>\n<p>\u5bf9\u4e86\uff0c\u4f60\u4e5f\u53ef\u4ee5\u70b9\u51fb\u5f00\u53d1\u8005\u5de5\u5177\u4e2d\u7684\u5176\u4ed6\u5730\u65b9\u6765\u770b\u4e00\u4e0b\u4f1a\u663e\u793a\u4ec0\u4e48\u3002\u8fd9\u53ef\u80fd\u662f\u4f60\u5b66\u4e60\u5f00\u53d1\u8005\u5de5\u5177\u6700\u5feb\u7684\u65b9\u5f0f\u4e86\u3002\u4e0d\u8981\u5fd8\u4e86\u8fd8\u6709\u53f3\u952e\u5355\u51fb\u548c\u5173\u8054\u83dc\u5355\u54df\u3002<\/p>\n<\/div>\n<\/article>\n<\/div>\n<div class=\"page__nav-wrap\"><\/div>\n<div id=\"comments\" class=\"comments formatted\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>cc from \u5728\u7f16\u5199\u66f4\u590d\u6742\u7684\u4ee3\u7801\u524d\uff0c\u8ba9<\/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":[24],"tags":[121],"class_list":["post-7118","post","type-post","status-publish","format-standard","hentry","category-value_docs","tag-05-"],"_links":{"self":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7118","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=7118"}],"version-history":[{"count":0,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/posts\/7118\/revisions"}],"wp:attachment":[{"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/media?parent=7118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/categories?post=7118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/i007.cc\/wordpress\/wp-json\/wp\/v2\/tags?post=7118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}