{"id":15923,"date":"2025-04-18T22:26:47","date_gmt":"2025-04-18T14:26:47","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/15923.html"},"modified":"2025-04-18T22:26:47","modified_gmt":"2025-04-18T14:26:47","slug":"node-js%e6%98%afjs%e8%af%ad%e8%a8%80%e5%9c%a8%e6%9c%8d%e5%8a%a1%e5%99%a8%e7%bc%96%e8%af%91%e8%bf%90%e8%a1%8c%e7%9a%84%e7%8e%af%e5%a2%83%ef%bc%8c%e4%bb%80%e4%b9%88%e6%98%afip%e5%92%8c%e5%9f%9f%e5%90%8d","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/15923.html","title":{"rendered":"Node.js\u662fjs\u8bed\u8a00\u5728\u670d\u52a1\u5668\u7f16\u8bd1\u8fd0\u884c\u7684\u73af\u5883\uff0c\u4ec0\u4e48\u662fIP\u548c\u57df\u540d"},"content":{"rendered":"<h4>\u4e00\u53e5\u8bdd\u7ed3\u8bba<\/h4>\n<p>Node.js \u4e0d\u662f\u8bed\u8a00\u4e5f\u4e0d\u662f\u6846\u67b6&#xff0c;\u800c\u662f\u4e00\u4e2a\u8ba9 JavaScript \u80fd\u8fd0\u884c\u5728\u670d\u52a1\u5668\u7aef\u7684\u201c\u73af\u5883\u201d&#xff08;\u7c7b\u4f3c Python \u7684\u89e3\u91ca\u5668&#xff09;\u3002JavaScript \u662f\u8bed\u8a00&#xff0c;Node.js \u662f\u5b83\u7684\u201c\u6267\u884c\u5de5\u5177\u201d\u3002<\/p>\n<hr \/>\n<h4>&#x1f330; \u7528 Python \u7c7b\u6bd4\u7406\u89e3<\/h4>\n<ul>\n<li>\n<p>Python \u548c JavaScript \u7684\u5173\u7cfb&#xff1a; \u4e24\u8005\u90fd\u662f\u7f16\u7a0b\u8bed\u8a00\u3002Python \u7528\u89e3\u91ca\u5668&#xff08;\u5982 CPython&#xff09;\u8fd0\u884c\u4ee3\u7801&#xff0c;JavaScript \u7528\u6d4f\u89c8\u5668\u6216 Node.js \u8fd0\u884c\u4ee3\u7801\u3002<\/p>\n<\/li>\n<li>\n<p>Node.js vs Python \u89e3\u91ca\u5668&#xff1a;<\/p>\n<ul>\n<li>Python \u89e3\u91ca\u5668&#xff1a;\u76f4\u63a5\u8fd0\u884c .py \u6587\u4ef6&#xff0c;\u540c\u6b65\u5904\u7406\u4efb\u52a1&#xff08;\u9ed8\u8ba4\u6309\u987a\u5e8f\u6267\u884c&#xff0c;\u9047\u5230\u8017\u65f6\u4efb\u52a1\u4f1a\u5361\u4f4f&#xff09;\u3002<\/li>\n<li>Node.js&#xff1a;\u8fd0\u884c .js \u6587\u4ef6&#xff0c;\u5f02\u6b65\u5904\u7406\u4efb\u52a1&#xff08;\u9047\u5230\u8017\u65f6\u4efb\u52a1\u4e0d\u5361\u4f4f&#xff0c;\u7ee7\u7eed\u6267\u884c\u5176\u4ed6\u4ee3\u7801&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4e3e\u4e2a\u4ee3\u7801\u4f8b\u5b50&#xff1a; \u573a\u666f&#xff1a;\u540c\u65f6\u5904\u7406\u7528\u6237\u8bf7\u6c42 &#043; \u8bfb\u53d6\u6587\u4ef6\u3002<\/p>\n<p> <span class=\"token comment\"># Python&#xff08;\u540c\u6b65\u4ee3\u7801&#xff0c;\u5047\u8bbe\u7528 Flask \u6846\u67b6&#xff09;<\/span><br \/>\n<span class=\"token keyword\">from<\/span> flask <span class=\"token keyword\">import<\/span> Flask<br \/>\n<span class=\"token keyword\">import<\/span> time<\/p>\n<p>app <span class=\"token operator\">&#061;<\/span> Flask<span class=\"token punctuation\">(<\/span>__name__<span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u5904\u7406\u7528\u6237\u8bf7\u6c42&#xff08;\u540c\u6b65&#xff09;<\/span><br \/>\n<span class=\"token decorator annotation punctuation\">&#064;app<span class=\"token punctuation\">.<\/span>route<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">hello<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    time<span class=\"token punctuation\">.<\/span>sleep<span class=\"token punctuation\">(<\/span><span class=\"token number\">2<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u6a21\u62df\u8017\u65f6\u64cd\u4f5c&#xff08;\u6bd4\u5982\u8bfb\u6570\u636e\u5e93&#xff09;<\/span><br \/>\n    <span class=\"token keyword\">return<\/span> <span class=\"token string\">&#034;Hello World!&#034;<\/span><\/p>\n<p><span class=\"token comment\"># \u53e6\u4e00\u4e2a\u8017\u65f6\u4efb\u52a1&#xff08;\u6bd4\u5982\u8bfb\u6587\u4ef6&#xff09;<\/span><br \/>\n<span class=\"token keyword\">def<\/span> <span class=\"token function\">read_file<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token keyword\">with<\/span> <span class=\"token builtin\">open<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;bigfile.txt&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;r&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">as<\/span> f<span class=\"token punctuation\">:<\/span><br \/>\n        content <span class=\"token operator\">&#061;<\/span> f<span class=\"token punctuation\">.<\/span>read<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u8bfb\u6587\u4ef6\u65f6&#xff0c;\u6574\u4e2a\u7a0b\u5e8f\u5361\u4f4f&#xff01;<\/span><br \/>\n    <span class=\"token keyword\">print<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;File read!&#034;<\/span><span class=\"token punctuation\">)<\/span><\/p>\n<p><span class=\"token comment\"># \u540c\u65f6\u6267\u884c\u4f1a\u5361\u4f4f&#xff1a;\u5fc5\u987b\u5148\u5904\u7406\u5b8c\u8bf7\u6c42&#xff0c;\u624d\u80fd\u8bfb\u6587\u4ef6<\/span><br \/>\n<span class=\"token keyword\">if<\/span> __name__ <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token string\">&#039;__main__&#039;<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    app<span class=\"token punctuation\">.<\/span>run<span class=\"token punctuation\">(<\/span>threaded<span class=\"token operator\">&#061;<\/span><span class=\"token boolean\">True<\/span><span class=\"token punctuation\">)<\/span>  <span class=\"token comment\"># \u591a\u7ebf\u7a0b\u7f13\u89e3&#xff0c;\u4f46\u4ecd\u6709\u6027\u80fd\u74f6\u9888<\/span><br \/>\n    read_file<span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><br \/>\n <span class=\"token comment\">\/\/ Node.js&#xff08;\u5f02\u6b65\u4ee3\u7801&#xff0c;\u7528 Express \u6846\u67b6&#xff09;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> fs <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;fs&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u5904\u7406\u7528\u6237\u8bf7\u6c42&#xff08;\u5f02\u6b65&#xff09;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">setTimeout<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span>  <span class=\"token comment\">\/\/ \u6a21\u62df\u8017\u65f6\u64cd\u4f5c<\/span><br \/>\n        res<span class=\"token punctuation\">.<\/span><span class=\"token function\">send<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;Hello World!&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token number\">2000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u53e6\u4e00\u4e2a\u8017\u65f6\u4efb\u52a1&#xff08;\u8bfb\u6587\u4ef6&#xff09;<\/span><br \/>\nfs<span class=\"token punctuation\">.<\/span><span class=\"token function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;bigfile.txt&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">err<span class=\"token punctuation\">,<\/span> data<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throw<\/span> err<span class=\"token punctuation\">;<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;File read!&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u540c\u65f6\u6267\u884c\u4e0d\u4f1a\u5361\u4f4f&#xff1a;\u8bf7\u6c42\u548c\u8bfb\u6587\u4ef6\u5e76\u884c\u5904\u7406&#xff01;<\/span><br \/>\napp<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5173\u952e\u533a\u522b&#xff1a;<\/p>\n<ul>\n<li>Python&#xff08;\u9ed8\u8ba4\u540c\u6b65&#xff09;&#xff1a;\u5904\u7406\u8bf7\u6c42\u65f6&#xff0c;\u8bfb\u6587\u4ef6\u5fc5\u987b\u7b49\u5f85\u3002<\/li>\n<li>Node.js&#xff08;\u5f02\u6b65&#xff09;&#xff1a;\u5904\u7406\u8bf7\u6c42\u65f6&#xff0c;\u8bfb\u6587\u4ef6\u5728\u540e\u53f0\u6267\u884c&#xff0c;\u4e92\u4e0d\u963b\u585e\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f4cc; \u6838\u5fc3\u6982\u5ff5\u6f84\u6e05<\/h4>\n<table>\n<tr>\u6982\u5ff5Node.jsPython<\/tr>\n<tbody>\n<tr>\n<td>\u672c\u8d28<\/td>\n<td>JavaScript \u7684\u8fd0\u884c\u65f6\u73af\u5883<\/td>\n<td>\u7f16\u7a0b\u8bed\u8a00 &#043; \u89e3\u91ca\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u8fd0\u884c\u65b9\u5f0f<\/td>\n<td>\u5f02\u6b65\u975e\u963b\u585e&#xff08;\u9ed8\u8ba4&#xff09;<\/td>\n<td>\u540c\u6b65\u963b\u585e&#xff08;\u9ed8\u8ba4&#xff09;<\/td>\n<\/tr>\n<tr>\n<td>\u6846\u67b6\u4e3e\u4f8b<\/td>\n<td>Express.js, Koa<\/td>\n<td>Django, Flask<\/td>\n<\/tr>\n<tr>\n<td>\u64c5\u957f\u9886\u57df<\/td>\n<td>\u9ad8\u5e76\u53d1 I\/O \u64cd\u4f5c<\/td>\n<td>\u6570\u636e\u5904\u7406\u3001\u673a\u5668\u5b66\u4e60<\/td>\n<\/tr>\n<tr>\n<td>\u6027\u80fd\u77ed\u677f<\/td>\n<td>CPU \u5bc6\u96c6\u578b\u4efb\u52a1&#xff08;\u5982\u56fe\u50cf\u5904\u7406&#xff09;<\/td>\n<td>\u9ad8\u5e76\u53d1\u573a\u666f&#xff08;\u540c\u6b65\u4ee3\u7801&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4>&#x1f31f; \u603b\u7ed3\u5bf9\u6bd4<\/h4>\n<li>\n<p>Node.js \u662f\u4ec0\u4e48&#xff1a;<\/p>\n<ul>\n<li>\u5b83\u662f JavaScript \u7684\u201c\u670d\u52a1\u5668\u7aef\u8fd0\u884c\u73af\u5883\u201d&#xff08;\u7c7b\u4f3c Python \u89e3\u91ca\u5668&#xff09;\u3002<\/li>\n<li>\u6838\u5fc3\u80fd\u529b\u662f\u5f02\u6b65\u975e\u963b\u585e&#xff0c;\u9002\u5408\u5904\u7406\u5927\u91cf\u5e76\u53d1\u8bf7\u6c42&#xff08;\u5982 API \u670d\u52a1\u3001\u5b9e\u65f6\u804a\u5929&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u548c Python \u7684\u533a\u522b&#xff1a;<\/p>\n<ul>\n<li>\u8bed\u8a00\u5c42\u9762&#xff1a;JavaScript \u548c Python \u662f\u4e24\u79cd\u4e0d\u540c\u7684\u7f16\u7a0b\u8bed\u8a00\u3002<\/li>\n<li>\u6267\u884c\u6a21\u578b&#xff1a;Node.js \u5929\u751f\u5f02\u6b65&#xff0c;Python \u9ed8\u8ba4\u540c\u6b65&#xff08;\u4f46\u53ef\u901a\u8fc7 asyncio \u5b9e\u73b0\u5f02\u6b65&#xff09;\u3002<\/li>\n<li>\u5e94\u7528\u573a\u666f&#xff1a;\n<ul>\n<li>Node.js&#xff1a;\u8f7b\u91cf\u7ea7\u3001\u9ad8\u5e76\u53d1\u7684\u670d\u52a1&#xff08;\u5982 REST API\u3001\u5b9e\u65f6\u5e94\u7528&#xff09;\u3002<\/li>\n<li>Python&#xff1a;\u8ba1\u7b97\u5bc6\u96c6\u578b\u4efb\u52a1&#xff08;\u5982\u6570\u636e\u5206\u6790\u3001AI \u8bad\u7ec3&#xff09;\u3001\u4f20\u7edf\u540e\u7aef\u670d\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h4>&#x1f4a1; \u5c0f\u767d\u8bb0\u5fc6\u6cd5<\/h4>\n<ul>\n<li>Node.js &#061; JavaScript \u7684\u201c\u670d\u52a1\u5668\u7248\u542f\u52a8\u5668\u201d &#xff08;\u8ba9 JS \u4ece\u7f51\u9875\u7279\u6548\u53d8\u6210\u80fd\u505a\u540e\u7aef\u670d\u52a1\u7684\u5de5\u5177&#xff09;\u3002<\/li>\n<li>Node.js vs Python&#xff1a;\n<ul>\n<li>\u60f3\u505a\u4e2a\u5b9e\u65f6\u804a\u5929\u5ba4&#xff1f;\u9009 Node.js&#xff08;\u9ad8\u6548\u5904\u7406\u5e76\u53d1&#xff09;\u3002<\/li>\n<li>\u60f3\u5206\u6790\u6570\u636e\u6216\u8bad\u7ec3 AI \u6a21\u578b&#xff1f;\u9009 Python&#xff08;\u751f\u6001\u4e30\u5bcc### \u4e00\u53e5\u8bdd\u603b\u7ed3 \u73af\u5883 &#061; \u4ee3\u7801\u8fd0\u884c\u7684\u5730\u65b9 &#043; \u80fd\u7528\u7684\u529f\u80fd \u6d4f\u89c8\u5668\u73af\u5883&#xff08;\u5982 Chrome&#xff09;\u548c Node.js \u73af\u5883&#xff08;\u670d\u52a1\u5668&#xff09;\u4e3a JavaScript \u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u201c\u5de5\u5177\u7bb1\u201d\u548c\u8fd0\u884c\u89c4\u5219\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f330; \u6d4f\u89c8\u5668 vs Node.js \u4ee3\u7801\u5bf9\u6bd4<\/h4>\n<h5>\u573a\u666f 1&#xff1a;\u64cd\u4f5c\u7f51\u9875\u5143\u7d20&#xff08;\u6d4f\u89c8\u5668\u4e13\u5c5e&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ \u6d4f\u89c8\u5668\u73af\u5883\u4ee3\u7801&#xff08;\u524d\u7aef&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u529f\u80fd&#xff1a;\u70b9\u51fb\u6309\u94ae\u540e\u4fee\u6539\u7f51\u9875\u6587\u5b57<\/span><br \/>\ndocument<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;myButton&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;click&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;text&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;Hello \u6d4f\u89c8\u5668&#xff01;&#039;<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u64cd\u4f5c DOM<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u5173\u952e\u533a\u522b&#xff1a;\n<ul>\n<li>document\u3001window\u3001DOM \u662f\u6d4f\u89c8\u5668\u63d0\u4f9b\u7684\u201c\u5de5\u5177\u7bb1\u201d&#xff0c;Node.js \u4e2d\u4e0d\u5b58\u5728\u8fd9\u4e9b\u5bf9\u8c61\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u4e2d\u7684 JavaScript \u53ea\u80fd\u64cd\u4f5c\u7f51\u9875\u5185\u5bb9&#xff0c;\u65e0\u6cd5\u76f4\u63a5\u8bfb\u5199\u670d\u52a1\u5668\u6587\u4ef6\u6216\u6570\u636e\u5e93\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h5>\u573a\u666f 2&#xff1a;\u8bfb\u5199\u6587\u4ef6&#xff08;Node.js \u4e13\u5c5e&#xff09;<\/h5>\n<p><span class=\"token comment\">\/\/ Node.js \u73af\u5883\u4ee3\u7801&#xff08;\u540e\u7aef&#xff09;<\/span><br \/>\n<span class=\"token comment\">\/\/ \u529f\u80fd&#xff1a;\u8bfb\u53d6\u670d\u52a1\u5668\u4e0a\u7684\u6587\u4ef6<\/span><br \/>\n<span class=\"token keyword\">const<\/span> fs <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;fs&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u5f15\u7528\u6587\u4ef6\u7cfb\u7edf\u6a21\u5757<\/span><\/p>\n<p>fs<span class=\"token punctuation\">.<\/span><span class=\"token function\">readFile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;data.txt&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">&#039;utf8&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">err<span class=\"token punctuation\">,<\/span> data<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>err<span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">throw<\/span> err<span class=\"token punctuation\">;<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u6587\u4ef6\u5185\u5bb9:&#039;<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8f93\u51fa\u5230\u670d\u52a1\u5668\u7ec8\u7aef<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<ul>\n<li>\u5173\u952e\u533a\u522b&#xff1a;\n<ul>\n<li>fs&#xff08;\u6587\u4ef6\u7cfb\u7edf&#xff09;\u3001http&#xff08;\u7f51\u7edc\u670d\u52a1&#xff09;\u662f Node.js \u63d0\u4f9b\u7684\u201c\u5de5\u5177\u7bb1\u201d&#xff0c;\u6d4f\u89c8\u5668\u4e2d\u65e0\u6cd5\u4f7f\u7528\u3002<\/li>\n<li>Node.js \u4e2d\u7684 JavaScript \u53ef\u4ee5\u64cd\u4f5c\u670d\u52a1\u5668\u8d44\u6e90&#xff0c;\u4f46\u65e0\u6cd5\u76f4\u63a5\u4fee\u6539\u7f51\u9875\u5185\u5bb9\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f6e0;\ufe0f 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\u5f15\u5165<\/td>\n<td>\u901a\u8fc7\u7ec8\u7aef\u547d\u4ee4 node app.js \u6267\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h4>&#x1f310; \u4ee3\u7801\u4ea4\u4e92\u793a\u4f8b<\/h4>\n<h5>\u5b8c\u6574\u6d41\u7a0b&#xff1a;\u6d4f\u89c8\u5668 &#043; Node.js \u534f\u4f5c<\/h5>\n<li>\u6d4f\u89c8\u5668\u7aef\u4ee3\u7801&#xff08;\u524d\u7aef&#xff09;&#xff1a;\u53d1\u9001\u8bf7\u6c42\u83b7\u53d6\u6570\u636e<\/li>\n<p><span class=\"token comment\">\/\/ \u6d4f\u89c8\u5668\u4e2d\u901a\u8fc7 JavaScript \u8bf7\u6c42\u670d\u52a1\u5668\u6570\u636e<\/span><br \/>\n<span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;http:\/\/localhost:3000\/api\/data&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">response<\/span> <span class=\"token operator\">&#061;&gt;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">data<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;result&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> data<span class=\"token punctuation\">.<\/span>message<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u4fee\u6539\u7f51\u9875<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<li>Node.js \u4ee3\u7801&#xff08;\u540e\u7aef&#xff09;&#xff1a;\u63d0\u4f9b\u6570\u636e\u63a5\u53e3<\/li>\n<p><span class=\"token comment\">\/\/ Node.js \u4e2d\u521b\u5efa API \u670d\u52a1<\/span><br \/>\n<span class=\"token keyword\">const<\/span> express <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">require<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;express&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> app <span class=\"token operator\">&#061;<\/span> <span class=\"token function\">express<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">get<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/api\/data&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">req<span class=\"token punctuation\">,<\/span> res<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  res<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">{<\/span> <span class=\"token literal-property property\">message<\/span><span class=\"token operator\">:<\/span> <span class=\"token string\">&#039;\u6570\u636e\u6765\u81ea Node.js \u670d\u52a1\u5668&#xff01;&#039;<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u8fd4\u56de\u6570\u636e<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>app<span class=\"token punctuation\">.<\/span><span class=\"token function\">listen<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">3000<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u670d\u52a1\u5668\u8fd0\u884c\u5728 http:\/\/localhost:3000&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<hr \/>\n<h4>&#x1f4a1; \u7406\u89e3\u201c\u73af\u5883\u201d\u7684\u672c\u8d28<\/h4>\n<li>\n<p>\u5de5\u5177\u7bb1\u4e0d\u540c&#xff1a;<\/p>\n<ul>\n<li>\u6d4f\u89c8\u5668\u73af\u5883\u63d0\u4f9b\u64cd\u4f5c\u7f51\u9875\u7684 API&#xff08;\u5982 document.getElementById&#xff09;\u3002<\/li>\n<li>Node.js \u73af\u5883\u63d0\u4f9b\u64cd\u4f5c\u670d\u52a1\u5668\u7684 API&#xff08;\u5982 fs.readFile&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u8fd0\u884c\u89c4\u5219\u4e0d\u540c&#xff1a;<\/p>\n<ul>\n<li>\u6d4f\u89c8\u5668\u4e2d JS \u901a\u8fc7\u4e8b\u4ef6\u5faa\u73af\u5904\u7406\u7528\u6237\u70b9\u51fb\u3001\u7f51\u7edc\u8bf7\u6c42\u7b49\u524d\u7aef\u4ea4\u4e92\u4e8b\u4ef6\u3002<\/li>\n<li>Node.js \u4e2d JS \u901a\u8fc7\u4e8b\u4ef6\u5faa\u73af\u5904\u7406\u670d\u52a1\u5668\u8bf7\u6c42\u3001\u6587\u4ef6\u8bfb\u5199\u7b49\u540e\u7aef\u4efb\u52a1\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u4ee3\u7801\u9694\u79bb\u6027&#xff1a;<\/p>\n<ul>\n<li>\u6d4f\u89c8\u5668\u4e2d\u7684 JS \u4ee3\u7801\u8fd0\u884c\u5728\u7528\u6237\u7535\u8111\u4e0a&#xff0c;\u53d7\u5b89\u5168\u9650\u5236&#xff08;\u4e0d\u80fd\u5220\u7528\u6237\u6587\u4ef6&#xff09;\u3002<\/li>\n<li>Node.js \u7684 JS \u4ee3\u7801\u8fd0\u884c\u5728\u670d\u52a1\u5668\u4e0a&#xff0c;\u62e5\u6709\u670d\u52a1\u5668\u64cd\u4f5c\u6743\u9650&#xff08;\u53ef\u8bfb\u5199\u6587\u4ef6\u3001\u8fde\u63a5\u6570\u636e\u5e93&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<hr \/>\n<h4>&#x1f9e9; \u603b\u7ed3\u4e00\u53e5\u8bdd<\/h4>\n<ul>\n<li>\u6d4f\u89c8\u5668\u73af\u5883&#xff1a;JavaScript \u7684\u201c\u7f51\u9875\u7248\u5de5\u5177\u7bb1\u201d \u2014\u2014 \u8d1f\u8d23\u8ba9\u7f51\u9875\u52a8\u8d77\u6765\u3002<\/li>\n<li>Node.js \u73af\u5883&#xff1a;JavaScript \u7684\u201c\u670d\u52a1\u5668\u7248\u5de5\u5177\u7bb1\u201d \u2014\u2014 \u8d1f\u8d23\u5904\u7406\u6570\u636e\u3001\u8fde\u63a5\u6570\u636e\u5e93\u3001\u54cd\u5e94\u8bf7\u6c42\u3002<\/li>\n<li>\u4e24\u8005\u5171\u7528 JavaScript \u8bed\u8a00&#xff0c;\u4f46\u6839\u636e\u73af\u5883\u4e0d\u540c&#xff0c;\u80fd\u505a\u7684\u4e8b\u60c5\u5b8c\u5168\u4e0d\u540c\u3002<\/li>\n<\/ul>\n<h4>&#x1f31f; \u4e00\u53e5\u8bdd\u89e3\u91ca DOM<\/h4>\n<p>DOM &#061; \u7f51\u9875\u7684\u201c\u4e50\u9ad8\u8bf4\u660e\u4e66\u201d \u6d4f\u89c8\u5668\u628a HTML \u4ee3\u7801&#xff08;\u6bd4\u5982 &lt;div&gt;\u3001&lt;button&gt;&#xff09;\u8f6c\u6362\u6210\u4e00\u4e2a\u4e2a\u53ef\u64cd\u4f5c\u7684\u201c\u79ef\u6728\u5757\u201d&#xff08;\u5bf9\u8c61&#xff09;&#xff0c;DOM \u5c31\u662f\u63cf\u8ff0\u8fd9\u4e9b\u79ef\u6728\u5982\u4f55\u7ec4\u88c5\u548c\u4fee\u6539\u7684\u89c4\u5219\u3002\u4f60\u53ef\u4ee5\u7528 JavaScript \u901a\u8fc7 DOM \u589e\u5220\u6539\u67e5\u7f51\u9875\u5185\u5bb9\u3002<\/p>\n<hr \/>\n<h4>&#x1f4da; \u524d\u7aef\u6838\u5fc3\u6982\u5ff5\u6e05\u5355&#xff08;\u901a\u4fd7\u7248&#xff09;<\/h4>\n<h5>1\ufe0f\u20e3 HTML&#xff08;\u9aa8\u67b6&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u7f51\u9875\u7684\u201c\u9aa8\u67b6\u201d&#xff0c;\u7528\u6807\u7b7e\u5b9a\u4e49\u7ed3\u6784&#xff08;\u6bd4\u5982\u6807\u9898\u3001\u6309\u94ae\u3001\u8f93\u5165\u6846&#xff09;\u3002<\/li>\n<li>\u4f8b\u5b50&#xff1a;<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>h1<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u6211\u662f\u6807\u9898<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>h1<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u70b9\u6211<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>button<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\n <\/li>\n<\/ul>\n<h5>2\ufe0f\u20e3 CSS&#xff08;\u8863\u670d\u548c\u5316\u5986&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u63a7\u5236\u7f51\u9875\u7684\u6837\u5f0f&#xff08;\u989c\u8272\u3001\u5927\u5c0f\u3001\u5e03\u5c40&#xff09;\u3002<\/li>\n<li>\u4f8b\u5b50&#xff1a;<span class=\"token selector\">h1<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token property\">color<\/span><span class=\"token punctuation\">:<\/span> red<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span>      <span class=\"token comment\">\/* \u6807\u9898\u53d8\u7ea2 *\/<\/span><br \/>\n<span class=\"token selector\">button<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token property\">padding<\/span><span class=\"token punctuation\">:<\/span> 10px<span class=\"token punctuation\">;<\/span> <span class=\"token punctuation\">}<\/span> <span class=\"token comment\">\/* \u6309\u94ae\u53d8\u5927 *\/<\/span>\n <\/li>\n<\/ul>\n<h5>3\ufe0f\u20e3 JavaScript&#xff08;\u52a8\u4f5c\u5bfc\u6f14&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u8ba9\u7f51\u9875\u52a8\u8d77\u6765&#xff08;\u70b9\u51fb\u6309\u94ae\u5f39\u7a97\u3001\u63d0\u4ea4\u8868\u5355\u3001\u52a0\u8f7d\u6570\u636e&#xff09;\u3002<\/li>\n<li>\u4f8b\u5b50&#xff1a;document<span class=\"token punctuation\">.<\/span><span class=\"token function\">querySelector<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;button&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function-variable function\">onclick<\/span> <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">alert<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4f60\u70b9\u4e86\u6211&#xff01;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>  <span class=\"token comment\">\/\/ \u70b9\u51fb\u6309\u94ae\u5f39\u51fa\u63d0\u793a<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<h5>4\ufe0f\u20e3 DOM&#xff08;\u79ef\u6728\u64cd\u4f5c\u624b\u518c&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u6d4f\u89c8\u5668\u628a HTML \u6807\u7b7e\u53d8\u6210 JavaScript \u80fd\u64cd\u4f5c\u7684\u201c\u5bf9\u8c61\u6811\u201d\u3002<\/li>\n<li>\u5173\u952e\u64cd\u4f5c&#xff1a;\n<ul>\n<li>\u67e5\u627e\u79ef\u6728&#xff1a;document.getElementById(&#039;id&#039;)<\/li>\n<li>\u4fee\u6539\u79ef\u6728&#xff1a;element.textContent &#061; &#039;\u65b0\u6587\u5b57&#039;<\/li>\n<li>\u6dfb\u52a0\u79ef\u6728&#xff1a;parent.appendChild(newElement)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>5\ufe0f\u20e3 \u4e8b\u4ef6&#xff08;\u7528\u6237\u52a8\u4f5c\u76d1\u542c\u5668&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u7528\u6237\u7684\u64cd\u4f5c&#xff08;\u70b9\u51fb\u3001\u6eda\u52a8\u3001\u8f93\u5165&#xff09;\u4f1a\u89e6\u53d1 JavaScript \u4ee3\u7801\u3002<\/li>\n<li>\u4f8b\u5b50&#xff1a;<span class=\"token comment\">\/\/ \u5f53\u7528\u6237\u6eda\u52a8\u9875\u9762\u65f6\u89e6\u53d1<\/span><br \/>\nwindow<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;scroll&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u4f60\u6eda\u52a8\u4e86&#xff01;&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<h5>6\ufe0f\u20e3 AJAX&#xff08;\u5077\u5077\u53d1\u8bf7\u6c42&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u4e0d\u5237\u65b0\u9875\u9762&#xff0c;\u5077\u5077\u548c\u670d\u52a1\u5668\u4ea4\u6362\u6570\u636e&#xff08;\u6bd4\u5982\u52a0\u8f7d\u65b0\u5185\u5bb9&#xff09;\u3002<\/li>\n<li>\u901a\u4fd7\u573a\u666f&#xff1a; \u4f60\u70b9\u5916\u5356&#xff08;\u53d1\u8bf7\u6c42&#xff09;\u2192 \u7ee7\u7eed\u5237\u5267&#xff08;\u4e0d\u5237\u65b0\u9875\u9762&#xff09;\u2192 \u5916\u5356\u5230\u4e86&#xff08;\u6570\u636e\u8fd4\u56de\u66f4\u65b0\u9875\u9762&#xff09;\u3002<\/li>\n<li>\u4ee3\u7801\u793a\u4f8b&#xff1a;<span class=\"token comment\">\/\/ \u7528 fetch \u83b7\u53d6\u670d\u52a1\u5668\u6570\u636e<\/span><br \/>\n<span class=\"token function\">fetch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;https:\/\/api.example.com\/data&#039;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">response<\/span> <span class=\"token operator\">&#061;&gt;<\/span> response<span class=\"token punctuation\">.<\/span><span class=\"token function\">json<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <span class=\"token punctuation\">.<\/span><span class=\"token function\">then<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">data<\/span> <span class=\"token operator\">&#061;&gt;<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\u62ff\u5230\u6570\u636e:&#039;<\/span><span class=\"token punctuation\">,<\/span> data<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n <\/li>\n<\/ul>\n<h5>7\ufe0f\u20e3 Cookie \u548c\u672c\u5730\u5b58\u50a8&#xff08;\u5c0f\u672c\u672c\u8bb0\u6570\u636e&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u6d4f\u89c8\u5668\u5b58\u50a8\u5c11\u91cf\u7528\u6237\u6570\u636e\u7684\u65b9\u5f0f&#xff08;\u6bd4\u5982\u767b\u5f55\u72b6\u6001\u3001\u7528\u6237\u504f\u597d&#xff09;\u3002<\/li>\n<li>\u533a\u522b&#xff1a;\n<ul>\n<li>Cookie&#xff1a;\u6bcf\u6b21\u8bf7\u6c42\u81ea\u52a8\u5e26\u4e0a\u7684\u5c0f\u7eb8\u6761&#xff08;\u9002\u5408\u5b58\u767b\u5f55 token&#xff09;\u3002<\/li>\n<li>LocalStorage&#xff1a;\u672c\u5730\u6c38\u4e45\u5b58\u50a8\u7684\u5927\u672c\u5b50&#xff08;\u9002\u5408\u5b58\u7528\u6237\u8bbe\u7f6e&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>8\ufe0f\u20e3 \u524d\u7aef\u6846\u67b6&#xff08;\u9ad8\u6548\u9020\u8f6e\u5b50\u5de5\u5177&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u5feb\u901f\u6784\u5efa\u590d\u6742\u7f51\u9875\u7684\u5de5\u5177&#xff08;\u6bd4\u5982 React\u3001Vue&#xff09;\u3002<\/li>\n<li>\u6838\u5fc3\u80fd\u529b&#xff1a;\n<ul>\n<li>\u7ec4\u4ef6\u5316&#xff1a;\u628a\u7f51\u9875\u62c6\u6210\u53ef\u590d\u7528\u7684\u201c\u79ef\u6728\u5757\u201d&#xff08;\u5982\u5bfc\u822a\u680f\u3001\u5546\u54c1\u5361\u7247&#xff09;\u3002<\/li>\n<li>\u6570\u636e\u9a71\u52a8&#xff1a;\u4fee\u6539\u6570\u636e\u81ea\u52a8\u66f4\u65b0\u9875\u9762&#xff08;\u4e0d\u7528\u624b\u52a8\u64cd\u4f5c DOM&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h5>9\ufe0f\u20e3 \u8de8\u57df\u95ee\u9898&#xff08;\u5feb\u9012\u516c\u53f8\u7684\u5730\u76d8\u9650\u5236&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u6d4f\u89c8\u5668\u7981\u6b62\u7f51\u9875\u5411\u201c\u4e0d\u540c\u57df\u540d\u201d\u7684\u670d\u52a1\u5668\u53d1\u8bf7\u6c42&#xff08;\u5b89\u5168\u9650\u5236&#xff09;\u3002<\/li>\n<li>\u901a\u4fd7\u573a\u666f&#xff1a; \u4f60\u7684\u7f51\u7ad9&#xff08;A \u5feb\u9012\u516c\u53f8&#xff09;\u60f3\u4ece\u53e6\u4e00\u4e2a\u7f51\u7ad9&#xff08;B \u5feb\u9012\u516c\u53f8&#xff09;\u62ff\u8d27 \u2192 \u88ab\u4fdd\u5b89\u62e6\u4e0b\u3002<\/li>\n<li>\u89e3\u51b3\u65b9\u6848&#xff1a;\u670d\u52a1\u5668\u8bbe\u7f6e CORS \u5934&#xff08;\u76f8\u5f53\u4e8e B \u5feb\u9012\u516c\u53f8\u7ed9 A \u5f00\u901a\u884c\u8bc1&#xff09;\u3002<\/li>\n<\/ul>\n<h5>&#x1f51f; \u5f00\u53d1\u8005\u5de5\u5177&#xff08;\u4fa6\u63a2\u653e\u5927\u955c&#xff09;<\/h5>\n<ul>\n<li>\u662f\u4ec0\u4e48&#xff1a;\u6d4f\u89c8\u5668\u81ea\u5e26\u7684\u8c03\u8bd5\u5de5\u5177&#xff08;Chrome \u6309 F12 \u6253\u5f00&#xff09;\u3002<\/li>\n<li>\u5e38\u7528\u529f\u80fd&#xff1a;\n<ul>\n<li>Elements&#xff1a;\u67e5\u770b\u548c\u4fee\u6539 DOM \u548c CSS\u3002<\/li>\n<li>Console&#xff1a;\u8fd0\u884c JavaScript \u4ee3\u7801&#xff0c;\u67e5\u770b\u9519\u8bef\u3002<\/li>\n<li>Network&#xff1a;\u76d1\u63a7\u6240\u6709\u7f51\u7edc\u8bf7\u6c42&#xff08;\u6bd4\u5982 AJAX \u8bf7\u6c42\u662f\u5426\u6210\u529f&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f310; \u603b\u7ed3&#xff1a;\u524d\u7aef\u5982\u4f55\u534f\u4f5c&#xff1f;<\/h4>\n<li>HTML \u642d\u9aa8\u67b6 \u2192 CSS \u7a7f\u8863\u670d \u2192 JavaScript \u52a0\u52a8\u4f5c\u3002<\/li>\n<li>DOM \u662f JavaScript \u64cd\u4f5c\u7f51\u9875\u7684\u201c\u624b\u67c4\u201d\u3002<\/li>\n<li>AJAX \u548c\u670d\u52a1\u5668\u5077\u5077\u901a\u4fe1&#xff0c;\u4e8b\u4ef6\u76d1\u542c\u7528\u6237\u52a8\u4f5c\u3002<\/li>\n<li>\u5f00\u53d1\u8005\u5de5\u5177\u5e2e\u4f60\u8c03\u8bd5\u4ee3\u7801&#xff0c;\u6846\u67b6\u63d0\u5347\u5f00\u53d1\u6548\u7387\u3002<\/li>\n<hr \/>\n<h4>&#x1f9e9; \u8bb0\u5fc6\u6280\u5de7<\/h4>\n<p>\u628a\u7f51\u9875\u60f3\u8c61\u6210\u4e00\u4e2a\u4eba&#xff1a;<\/p>\n<ul>\n<li>HTML \u662f\u9aa8\u67b6 \u2192 \u51b3\u5b9a\u957f\u4ec0\u4e48\u6837&#xff08;\u9ad8\u77ee\u80d6\u7626&#xff09;\u3002<\/li>\n<li>CSS \u662f\u8863\u670d\u548c\u5316\u5986 \u2192 \u51b3\u5b9a\u597d\u4e0d\u597d\u770b\u3002<\/li>\n<li>JavaScript \u662f\u808c\u8089\u548c\u795e\u7ecf \u2192 \u51b3\u5b9a\u80fd\u505a\u4ec0\u4e48\u52a8\u4f5c\u3002<\/li>\n<li>DOM \u662f\u533b\u751f\u7684\u624b\u672f\u5200 \u2192 \u7528\u6765\u8c03\u6574\u9aa8\u67b6\u548c\u808c\u8089\u3002<\/li>\n<\/ul>\n<h4>&#x1f31f; \u901a\u4fd7\u89e3\u7b54 &amp; \u5b9e\u6218\u793a\u4f8b<\/h4>\n<p>\u2014#### 1. DOM \u7684\u5168\u79f0\u662f\u4ec0\u4e48&#xff1f; &#8211; \u5168\u79f0&#xff1a;Document Object Model&#xff08;\u6587\u6863\u5bf9\u8c61\u6a21\u578b&#xff09; &#8211; \u901a\u4fd7\u89e3\u91ca&#xff1a; \u628a\u7f51\u9875\u60f3\u8c61\u6210\u4e00\u672c\u7acb\u4f53\u4e66&#xff0c;DOM \u5c31\u662f\u8fd9\u672c\u4e66\u7684\u201c3D \u7ed3\u6784\u8bf4\u660e\u4e66\u201d\u3002 &#8211; \u6d4f\u89c8\u5668\u8bfb\u53d6 HTML \u4ee3\u7801&#xff08;\u6bd4\u5982 &lt;button&gt;\u6309\u94ae&lt;\/button&gt;&#xff09;\u540e&#xff0c;\u4f1a\u751f\u6210\u4e00\u68f5\u201c\u8282\u70b9\u6811\u201d&#xff0c;DOM \u5c31\u662f\u8fd9\u68f5\u6811\u7684\u7f16\u7a0b\u63a5\u53e3&#xff0c;\u8ba9\u4f60\u80fd\u7528 JavaScript \u64cd\u4f5c\u9875\u9762\u5143\u7d20&#xff08;\u6bd4\u5982\u70b9\u51fb\u6309\u94ae\u53d8\u8272&#xff09;\u3002 &#8211; \u4ee3\u7801\u793a\u4f8b&#xff1a; javascript \/\/ \u901a\u8fc7 DOM \u4fee\u6539\u7f51\u9875\u5185\u5bb9 document.querySelector(&#039;button&#039;).textContent &#061; &#039;\u70b9\u6211\u53d8\u7ea2&#xff01;&#039;;\u2014#### 2. \u57df\u540d\u5230\u5e95\u662f\u4ec0\u4e48&#xff1f; &#8211; \u901a\u4fd7\u89e3\u91ca&#xff1a; \u57df\u540d &#061; \u7f51\u7ad9\u7684\u201c\u95e8\u724c\u53f7\u201d\u3002 &#8211; \u6bd4\u5982 www.baidu.com \u662f\u767e\u5ea6\u7684\u57df\u540d&#xff0c;\u5b83\u5bf9\u5e94\u670d\u52a1\u5668\u7684 IP \u5730\u5740&#xff08;\u5982 14.215.177.38&#xff09;&#xff0c;\u4f46\u57df\u540d\u66f4\u5bb9\u6613\u8bb0\u5fc6\u3002 &#8211; DNS&#xff08;\u57df\u540d\u7cfb\u7edf&#xff09;&#xff1a;\u76f8\u5f53\u4e8e\u201c\u7535\u8bdd\u7c3f\u201d&#xff0c;\u628a\u57df\u540d\u7ffb\u8bd1\u6210 IP \u5730\u5740\u3002 &#8211; \u5b9e\u6218\u573a\u666f&#xff1a; \u4f60\u5728\u6d4f\u89c8\u5668\u8f93\u5165 www.google.com \u2192 DNS \u627e\u5230 Google \u670d\u52a1\u5668\u7684 IP \u2192 \u6d4f\u89c8\u5668\u901a\u8fc7 IP \u8bbf\u95ee\u670d\u52a1\u5668\u83b7\u53d6\u7f51\u9875\u3002\u2014#### 3. \u54ea\u91cc\u4f1a\u51fa\u73b0\u8de8\u57df&#xff1f; &#8211; \u901a\u4fd7\u89e3\u91ca&#xff1a; \u8de8\u57df &#061; \u5feb\u9012\u516c\u53f8\u62d2\u9001\u975e\u5408\u4f5c\u5546\u5bb6\u7684\u5305\u88f9\u3002 &#8211; \u540c\u6e90\u7b56\u7565&#xff1a;\u6d4f\u89c8\u5668\u4e3a\u4e86\u5b89\u5168&#xff0c;\u7981\u6b62\u7f51\u9875\u5411\u201c\u4e0d\u540c\u6e90\u201d&#xff08;\u57df\u540d\u3001\u534f\u8bae\u3001\u7aef\u53e3\u4efb\u4e00\u4e0d\u540c&#xff09;\u7684\u670d\u52a1\u5668\u53d1\u8bf7\u6c42\u3002 &#8211; \u8de8\u57df\u573a\u666f&#xff1a; \u4f60\u7684\u7f51\u7ad9 https:\/\/www.yoursite.com \u8bf7\u6c42 https:\/\/api.others.com \u7684\u6570\u636e \u2192 \u6d4f\u89c8\u5668\u62e6\u622a\u3002 &#8211; \u4ee3\u7801\u793a\u4f8b&#xff08;\u89e6\u53d1\u8de8\u57df&#xff09;&#xff1a; javascript \/\/ \u524d\u7aef\u4ee3\u7801\u5728 http:\/\/localhost:3000 \u8bf7\u6c42\u5176\u4ed6\u57df\u540d\u7684\u63a5\u53e3 fetch(&#039;https:\/\/api.another-domain.com\/data&#039;) .then(response &#061;&gt; response.json()) .then(data &#061;&gt; console.log(data)); \/\/ \u6d4f\u89c8\u5668\u62a5\u9519&#xff1a;\u8de8\u57df\u8bf7\u6c42\u88ab\u963b\u6b62- \u89e3\u51b3\u65b9\u6848&#xff1a; &#8211; \u540e\u7aef\u8bbe\u7f6e CORS \u5934&#xff08;\u5141\u8bb8\u4f60\u7684\u57df\u540d\u8bbf\u95ee&#xff09;\u3002 &#8211; \u7528 Nginx \u53cd\u5411\u4ee3\u7406&#xff08;\u89c1\u4e0b\u6587&#xff09;\u3002\u2014#### 4. \u524d\u7aef\u4ee3\u7801\u548c Nginx \u7684\u5173\u7cfb &#8211; \u901a\u4fd7\u89e3\u91ca&#xff1a; Nginx &#061; \u5168\u80fd\u95e8\u536b &#043; \u5feb\u9012\u5206\u62e3\u5458\u3002 &#8211; \u9759\u6001\u8d44\u6e90\u6258\u7ba1&#xff1a;Nginx \u53ef\u4ee5\u76f4\u63a5\u6258\u7ba1\u4f60\u7684\u524d\u7aef\u4ee3\u7801&#xff08;HTML\/CSS\/JS \u6587\u4ef6&#xff09;&#xff0c;\u7528\u6237\u8bbf\u95ee\u65f6\u5feb\u901f\u8fd4\u56de\u3002 &#8211; \u53cd\u5411\u4ee3\u7406&#xff1a;\u5e2e\u4f60\u8f6c\u53d1\u8bf7\u6c42\u5230\u540e\u7aef\u670d\u52a1\u5668&#xff0c;\u7ed5\u8fc7\u8de8\u57df\u9650\u5236\u3002 &#8211; \u5b9e\u6218\u573a\u666f&#xff1a; \u4f60\u7684\u524d\u7aef\u4ee3\u7801\u90e8\u7f72\u5728 Nginx \u4e0a&#xff0c;\u7528\u6237\u8bbf\u95ee https:\/\/www.yoursite.com&#xff1a; 1\ufe0f\u20e3 \u8bf7\u6c42 \/ \u2192 Nginx \u8fd4\u56de index.html&#xff08;\u524d\u7aef\u9875\u9762&#xff09;\u3002 2\ufe0f\u20e3 \u524d\u7aef\u8bf7\u6c42 \/api\/data \u2192 Nginx \u8f6c\u53d1\u5230 http:\/\/backend-server:8080\/api\/data&#xff08;\u540e\u7aef\u63a5\u53e3&#xff09;\u3002 &#8211; Nginx \u914d\u7f6e\u793a\u4f8b&#xff08;\u89e3\u51b3\u8de8\u57df&#xff09;&#xff1a; nginx server { listen 80; server_name www.yoursite.com; # \u6258\u7ba1\u524d\u7aef\u9759\u6001\u6587\u4ef6 location \/ { root \/usr\/share\/nginx\/html; index index.html; } # \u53cd\u5411\u4ee3\u7406\u8f6c\u53d1 API \u8bf7\u6c42 location \/api\/ { proxy_pass http:\/\/backend-server:8080\/; # \u8f6c\u53d1\u5230\u540e\u7aef add_header &#039;Access-Control-Allow-Origin&#039; &#039;*&#039;; # \u5141\u8bb8\u6240\u6709\u57df\u540d\u8bbf\u95ee&#xff08;\u4ec5\u6d4b\u8bd5\u7528&#xff09; } }\u2014### &#x1f6e0;\ufe0f \u76f4\u63a5\u5b9e\u6218&#xff01; \u6b65\u9aa4 1&#xff1a;\u7528 Nginx \u6258\u7ba1\u524d\u7aef\u9879\u76ee 1. \u5c06\u524d\u7aef\u4ee3\u7801&#xff08;\u5982 dist \u6587\u4ef6\u5939&#xff09;\u653e\u5230 Nginx \u7684 \/usr\/share\/nginx\/html \u76ee\u5f55\u3002 2. \u8bbf\u95ee http:\/\/\u4f60\u7684\u670d\u52a1\u5668IP \u5373\u53ef\u770b\u5230\u7f51\u9875\u3002 \u6b65\u9aa4 2&#xff1a;\u914d\u7f6e\u53cd\u5411\u4ee3\u7406\u89e3\u51b3\u8de8\u57df 1. \u4fee\u6539 Nginx \u914d\u7f6e&#xff08;\u5982\u4e0a\u65b9\u793a\u4f8b&#xff09;&#xff0c;\u5c06 \/api\/ \u8bf7\u6c42\u8f6c\u53d1\u5230\u540e\u7aef\u670d\u52a1\u5668\u3002 2. \u524d\u7aef\u4ee3\u7801\u76f4\u63a5\u8bf7\u6c42 \/api\/data&#xff08;\u800c\u975e\u5b8c\u6574\u57df\u540d&#xff09;&#xff0c;Nginx \u81ea\u52a8\u8f6c\u53d1\u3002 \u6548\u679c&#xff1a; &#8211; \u7528\u6237\u65e0\u611f\u77e5\u8de8\u57df\u95ee\u9898&#xff0c;Nginx \u9ed8\u9ed8\u5b8c\u6210\u201c\u5feb\u9012\u5206\u62e3\u201d\u3002 &#8211; \u524d\u7aef\u4ee3\u7801\u548c\u540e\u7aef\u63a5\u53e3\u89e3\u8026&#xff0c;\u90e8\u7f72\u66f4\u7075\u6d3b\u3002 \u2014### &#x1f4dd; \u603b\u7ed3 &#8211; DOM&#xff1a;\u64cd\u4f5c\u7f51\u9875\u7684\u201c\u7ed3\u6784\u8bf4\u660e\u4e66\u201d\u3002 &#8211; \u57df\u540d&#xff1a;\u7f51\u7ad9\u7684\u6613\u8bb0\u95e8\u724c\u53f7\u3002 &#8211; \u8de8\u57df&#xff1a;\u6d4f\u89c8\u5668\u7684\u5b89\u5168\u9650\u5236&#xff08;\u53ef\u901a\u8fc7 Nginx \u7ed5\u5f00&#xff09;\u3002 &#8211; Nginx&#xff1a;\u524d\u7aef\u4ee3\u7801\u7684\u6258\u7ba1\u8005 &#043; \u8bf7\u6c42\u8f6c\u53d1\u5458\u3002 &#8211; \u8bb0\u4f4f&#xff1a;Nginx \u662f\u4f60\u7684\u201c\u4e2d\u95f4\u4eba\u201d&#xff0c;\u5e2e\u4f60\u5904\u7406\u8bf7\u6c42\u5206\u53d1\u548c\u8de8\u57df\u96be\u9898&#xff01;<\/p>\n<h4>&#x1f31f; \u901a\u4fd7\u89e3\u7b54<\/h4>\n<hr \/>\n<h5>1. \u57df\u540d\u7684\u6784\u6210<\/h5>\n<p>\u57df\u540d &#061; \u7f51\u7ad9\u7684\u201c\u95e8\u724c\u53f7\u201d&#xff0c;\u7531 \u591a\u7ea7\u5b57\u7b26\u4e32 \u7ec4\u6210&#xff0c;\u4e0d\u5305\u542b IP \u548c\u7aef\u53e3\u3002<\/p>\n<ul>\n<li>\u5178\u578b\u7ed3\u6784&#xff1a;www.example.com\n<ul>\n<li>\u9876\u7ea7\u57df&#xff08;TLD&#xff09;&#xff1a;.com&#xff08;\u5546\u4e1a\u7f51\u7ad9&#xff09;\u3001.org&#xff08;\u7ec4\u7ec7&#xff09;\u3001.cn&#xff08;\u56fd\u5bb6\u4ee3\u7801&#xff09;\u3002<\/li>\n<li>\u4e8c\u7ea7\u57df&#xff1a;example&#xff08;\u4f60\u6ce8\u518c\u7684\u7f51\u7ad9\u540d\u79f0&#xff09;\u3002<\/li>\n<li>\u5b50\u57df\u540d&#xff1a;www&#xff08;\u5e38\u89c1\u7684\u5b50\u57df\u540d&#xff0c;\u53ef\u81ea\u5b9a\u4e49\u4e3a blog.example.com&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>\u793a\u4f8b\u7c7b\u6bd4&#xff1a;<\/p>\n<ul>\n<li>\u57df\u540d \u2248 \u516c\u53f8\u5927\u697c\u7684\u5730\u5740&#xff08;\u5982\u201c\u5317\u4eac\u5e02\u6d77\u6dc0\u533a\u4e2d\u5173\u6751\u5927\u88571\u53f7\u201d&#xff09;\u3002<\/li>\n<li>IP \u2248 \u5927\u697c\u7684\u7ecf\u7eac\u5ea6\u5750\u6807&#xff08;\u7cbe\u786e\u4f4d\u7f6e&#xff0c;\u4f46\u96be\u8bb0&#xff09;\u3002<\/li>\n<li>\u7aef\u53e3 \u2248 \u5927\u697c\u91cc\u7684\u623f\u95f4\u53f7&#xff08;\u6bd4\u5982 8080 \u623f\u95f4\u662f\u6280\u672f\u90e8&#xff0c;80 \u623f\u95f4\u662f\u524d\u53f0&#xff09;\u3002<\/li>\n<\/ul>\n<hr \/>\n<h5>2. \u57df\u540d vs IP vs \u7aef\u53e3<\/h5>\n<table>\n<tr>\u6982\u5ff5\u4f5c\u7528\u662f\u5426\u5c5e\u4e8e\u57df\u540d\u793a\u4f8b<\/tr>\n<tbody>\n<tr>\n<td>\u57df\u540d<\/td>\n<td>\u65b9\u4fbf\u8bb0\u5fc6\u7684\u7f51\u7ad9\u5730\u5740<\/td>\n<td>\u662f<\/td>\n<td>www.baidu.com<\/td>\n<\/tr>\n<tr>\n<td>IP<\/td>\n<td>\u670d\u52a1\u5668\u7684\u771f\u5b9e\u7f51\u7edc\u5730\u5740<\/td>\n<td>\u5426<\/td>\n<td>14.215.177.38<\/td>\n<\/tr>\n<tr>\n<td>\u7aef\u53e3<\/td>\n<td>\u6307\u5b9a\u670d\u52a1\u5668\u4e0a\u7684\u5177\u4f53\u670d\u52a1<\/td>\n<td>\u5426<\/td>\n<td>:80&#xff08;HTTP\u9ed8\u8ba4\u7aef\u53e3&#xff09;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h5>3. \u7aef\u53e3\u5728\u54ea\u91cc\u51fa\u73b0&#xff1f;<\/h5>\n<ul>\n<li>\u9ed8\u8ba4\u9690\u85cf&#xff1a;\u8bbf\u95ee http:\/\/www.example.com \u65f6&#xff0c;\u5b9e\u9645\u662f http:\/\/www.example.com:80&#xff08;HTTP \u9ed8\u8ba4\u7aef\u53e3&#xff09;\u3002<\/li>\n<li>\u663e\u5f0f\u6307\u5b9a&#xff1a;\u82e5\u670d\u52a1\u8fd0\u884c\u5728\u975e\u5e38\u7528\u7aef\u53e3&#xff08;\u5982 8080&#xff09;&#xff0c;\u9700\u624b\u52a8\u6dfb\u52a0&#xff1a;http:\/\/www.example.com:8080\u3002<\/li>\n<\/ul>\n<p>\u901a\u4fd7\u573a\u666f&#xff1a;<\/p>\n<ul>\n<li>\u4f60\u53bb\u9910\u5385\u5403\u996d&#xff08;\u8bbf\u95ee\u670d\u52a1\u5668&#xff09;&#xff1a;\n<ul>\n<li>\u57df\u540d &#061; \u9910\u5385\u540d\u5b57&#xff08;\u5982\u201c\u6d77\u5e95\u635e\u201d&#xff09;\u3002<\/li>\n<li>IP &#061; \u9910\u5385\u7684 GPS \u5750\u6807&#xff08;\u7cbe\u786e\u4f46\u96be\u8bb0&#xff09;\u3002<\/li>\n<li>\u7aef\u53e3 &#061; \u9910\u5385\u7684\u684c\u53f7&#xff08;\u9ed8\u8ba4\u662f 80 \u53f7\u684c&#xff0c;\u4f46\u5305\u95f4\u53ef\u80fd\u8bbe\u5728 8080 \u53f7\u684c&#xff09;\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f6e0;\ufe0f \u5b9e\u6218\u573a\u666f<\/h4>\n<h5>\u573a\u666f 1&#xff1a;\u901a\u8fc7\u57df\u540d\u8bbf\u95ee\u7f51\u7ad9<\/h5>\n<ul>\n<li>\u7528\u6237\u8f93\u5165&#xff1a;https:\/\/www.github.com<\/li>\n<li>\u80cc\u540e\u6d41\u7a0b&#xff1a;\n<li>DNS \u5c06 www.github.com \u89e3\u6790\u4e3a IP&#xff08;\u5982 140.82.121.3&#xff09;\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u5411 140.82.121.3:443&#xff08;HTTPS \u9ed8\u8ba4\u7aef\u53e3&#xff09;\u53d1\u8d77\u8bf7\u6c42\u3002<\/li>\n<\/li>\n<\/ul>\n<h5>\u573a\u666f 2&#xff1a;\u6307\u5b9a\u7aef\u53e3\u8bbf\u95ee\u670d\u52a1<\/h5>\n<ul>\n<li>\u5f00\u53d1\u73af\u5883&#xff1a;\u4f60\u7684 Node.js \u540e\u7aef\u670d\u52a1\u8fd0\u884c\u5728 http:\/\/localhost:3000\u3002<\/li>\n<li>\u8bbf\u95ee\u65b9\u5f0f&#xff1a;\u6d4f\u89c8\u5668\u8f93\u5165 http:\/\/localhost:3000&#xff08;\u663e\u5f0f\u6307\u5b9a\u7aef\u53e3&#xff09;\u3002<\/li>\n<\/ul>\n<hr \/>\n<h4>&#x1f4dd; \u603b\u7ed3<\/h4>\n<ul>\n<li>\u57df\u540d\u662f\u6613\u8bb0\u7684\u7f51\u7ad9\u5730\u5740&#xff0c;\u7531\u591a\u7ea7\u5b57\u7b26\u4e32\u6784\u6210&#xff08;\u5982 www.example.com&#xff09;\u3002<\/li>\n<li>IP\u662f\u670d\u52a1\u5668\u7684\u771f\u5b9e\u7f51\u7edc\u5750\u6807&#xff0c;\u7aef\u53e3\u662f\u670d\u52a1\u5668\u4e0a\u7684\u201c\u623f\u95f4\u53f7\u201d&#xff08;\u5982 :80&#xff09;\u3002<\/li>\n<li>\u57df\u540d\u4e0d\u5305\u542b IP \u548c\u7aef\u53e3&#xff0c;\u4f46\u8bbf\u95ee\u65f6\u53ef\u901a\u8fc7 URL \u663e\u5f0f\u6307\u5b9a\u7aef\u53e3&#xff08;\u5982 example.com:8080&#xff09;\u3002<\/li>\n<\/ul>\n<p>\u8bb0\u4f4f&#xff1a;<\/p>\n<ul>\n<li>\u57df\u540d \u2248 \u4f60\u7684\u540d\u5b57&#xff08;\u65b9\u4fbf\u522b\u4eba\u79f0\u547c\u4f60&#xff09;\u3002<\/li>\n<li>IP \u2248 \u4f60\u7684\u8eab\u4efd\u8bc1\u53f7&#xff08;\u7cbe\u786e\u6807\u8bc6&#xff0c;\u4f46\u96be\u8bb0&#xff09;\u3002<\/li>\n<li>\u7aef\u53e3 \u2248 \u4f60\u5bb6\u7684\u95e8\u724c\u53f7&#xff08;\u51b3\u5b9a\u8bbf\u95ee\u54ea\u4e2a\u623f\u95f4&#xff09;\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u6587\u7ae0\u6d4f\u89c8\u9605\u8bfb849\u6b21\uff0c\u70b9\u8d5e28\u6b21\uff0c\u6536\u85cf12\u6b21\u3002Node.js \u4e0d\u662f\u8bed\u8a00\u4e5f\u4e0d\u662f\u6846\u67b6\uff0c\u800c\u662f\u4e00\u4e2a\u8ba9 JavaScript \u80fd\u8fd0\u884c\u5728\u670d\u52a1\u5668\u7aef\u7684\u201c\u73af\u5883\u201d\uff08\u7c7b\u4f3c Python \u7684\u89e3\u91ca\u5668\uff09\u3002JavaScript \u662f\u8bed\u8a00\uff0cNode.js \u662f\u5b83\u7684\u201c\u6267\u884c\u5de5\u5177\u201d\u3002Python \u548c JavaScript \u7684\u5173\u7cfb\uff1a\u4e24\u8005\u90fd\u662f\u7f16\u7a0b\u8bed\u8a00\u3002Python \u7528\u89e3\u91ca\u5668\uff08\u5982 CPython\uff09\u8fd0\u884c\u4ee3\u7801\uff0cJavaScript \u7528\u6d4f\u89c8\u5668\u6216 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