{"id":90778,"date":"2026-08-05T23:56:54","date_gmt":"2026-08-05T15:56:54","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/90778.html"},"modified":"2026-08-05T23:56:54","modified_gmt":"2026-08-05T15:56:54","slug":"%e4%bb%8e%e9%a1%b5%e9%9d%a2%e8%b7%b3%e8%bd%ac%e5%88%b0%e6%89%8b%e5%86%99-spa%ef%bc%9a%e6%b7%b1%e5%85%a5%e7%90%86%e8%a7%a3-hash-%e8%b7%af%e7%94%b1%e4%b8%8e%e6%b5%8f%e8%a7%88%e5%99%a8%e5%8e%86%e5%8f%b2","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/90778.html","title":{"rendered":"\u4ece\u9875\u9762\u8df3\u8f6c\u5230\u624b\u5199 SPA\uff1a\u6df1\u5165\u7406\u89e3 Hash \u8def\u7531\u4e0e\u6d4f\u89c8\u5668\u5386\u53f2"},"content":{"rendered":"<\/p>\n<h4>\u4ece\u9875\u9762\u8df3\u8f6c\u5230\u624b\u5199 SPA&#xff1a;\u6df1\u5165\u7406\u89e3 Hash \u8def\u7531\u4e0e\u6d4f\u89c8\u5668\u5386\u53f2<\/h4>\n<ul>\n<li>\u524d\u8a00<\/li>\n<li>1. \u4ece\u591a\u9875\u9762\u5e94\u7528\u5230\u5355\u9875\u5e94\u7528<\/li>\n<li>\n<ul>\n<li>1.1 \u4e00\u6b21\u4f20\u7edf\u9875\u9762\u8df3\u8f6c\u53d1\u751f\u4e86\u4ec0\u4e48<\/li>\n<li>1.2 SPA \u4e3a\u4ec0\u4e48\u9700\u8981\u524d\u7aef\u8def\u7531<\/li>\n<\/ul>\n<\/li>\n<li>2. \u7406\u89e3 URL\u3001Hash \u4e0e\u6d4f\u89c8\u5386\u53f2<\/li>\n<li>\n<ul>\n<li>2.1 Hash \u662f URL \u4e2d\u7684\u54ea\u4e00\u90e8\u5206<\/li>\n<li>2.2 \u951a\u70b9\u5b9e\u9a8c&#xff1a;\u5148\u770b\u89c1 Hash \u5982\u4f55\u53d8\u5316<\/li>\n<\/ul>\n<\/li>\n<li>3. \u624b\u5199 HashRouter&#xff1a;\u9010\u5757\u62c6\u89e3\u6838\u5fc3\u4ee3\u7801<\/li>\n<li>\n<ul>\n<li>3.1 \u9875\u9762\u9aa8\u67b6&#xff1a;\u8def\u7531\u5165\u53e3\u4e0e\u89c6\u56fe\u6302\u8f7d\u70b9<\/li>\n<li>3.2 \u8def\u7531\u8868&#xff1a;\u4e3a\u4ec0\u4e48\u7528\u5bf9\u8c61\u4fdd\u5b58\u56de\u8c03<\/li>\n<li>3.3 \u76d1\u542c Hash&#xff1a;bind \u89e3\u51b3\u7684\u4e0d\u662f\u8bed\u6cd5&#xff0c;\u800c\u662f this<\/li>\n<li>3.4 register&#xff1a;\u6ce8\u518c\u53ea\u5efa\u6620\u5c04&#xff0c;\u4e0d\u8d1f\u8d23\u6e32\u67d3<\/li>\n<li>3.5 load&#xff1a;\u8bfb\u53d6\u3001\u89c4\u8303\u5316\u3001\u5339\u914d\u3001\u6267\u884c<\/li>\n<li>3.6 \u5b9e\u4f8b\u5316\u4e0e\u9875\u9762\u56de\u8c03&#xff1a;\u95ed\u5305\u628a\u89c6\u56fe\u8fde\u63a5\u8d77\u6765<\/li>\n<\/ul>\n<\/li>\n<li>4. \u628a\u788e\u7247\u4e32\u8d77\u6765&#xff1a;\u4e00\u6b21\u8def\u7531\u5207\u6362\u7684\u5b8c\u6574\u6267\u884c\u94fe<\/li>\n<li>\n<ul>\n<li>4.1 \u4ece\u70b9\u51fb\u9875\u9762\u4e8c\u5230\u89c6\u56fe\u66f4\u65b0<\/li>\n<li>4.2 \u9996\u6b21\u52a0\u8f7d\u4e3a\u4ec0\u4e48\u662f\u7279\u6b8a\u573a\u666f<\/li>\n<\/ul>\n<\/li>\n<li>5. Hash \u8def\u7531\u7684\u80fd\u529b\u8fb9\u754c\u4e0e\u65b9\u6848\u9009\u62e9<\/li>\n<li>\n<ul>\n<li>5.1 Hash \u8def\u7531\u4e0e History \u8def\u7531\u5bf9\u6bd4<\/li>\n<li>5.2 \u4ece\u624b\u5199\u8def\u7531\u5668\u5230\u6846\u67b6\u8def\u7531\u5668<\/li>\n<\/ul>\n<\/li>\n<li>\u603b\u7ed3<\/li>\n<\/ul>\n<h2>\u524d\u8a00<\/h2>\n<p>\u6253\u5f00\u4e00\u4e2a\u4f20\u7edf\u7f51\u7ad9&#xff0c;\u70b9\u51fb\u201c\u5173\u4e8e\u6211\u4eec\u201d&#xff0c;\u6d4f\u89c8\u5668\u901a\u5e38\u4f1a\u8bf7\u6c42\u4e00\u4efd\u65b0\u7684 HTML&#xff0c;\u518d\u91cd\u65b0\u89e3\u6790\u6587\u6863\u3001\u6784\u5efa DOM \u5e76\u7ed8\u5236\u9875\u9762\u3002\u8fd9\u4e2a\u8fc7\u7a0b\u76f4\u89c2\u3001\u53ef\u9760&#xff0c;\u5374\u4e5f\u610f\u5473\u7740\u9875\u9762\u516c\u5171\u533a\u57df\u53ef\u80fd\u88ab\u53cd\u590d\u52a0\u8f7d&#xff0c;\u7f51\u7edc\u7a0d\u6162\u65f6\u8fd8\u5bb9\u6613\u51fa\u73b0\u77ed\u6682\u767d\u5c4f\u3002\u79fb\u52a8\u4e92\u8054\u7f51\u5174\u8d77\u4e4b\u540e&#xff0c;\u7528\u6237\u9010\u6e10\u4e60\u60ef\u539f\u751f App \u90a3\u79cd\u201c\u53ea\u66f4\u65b0\u5185\u5bb9\u533a\u57df\u201d\u7684\u4f53\u9a8c&#xff0c;\u5355\u9875\u5e94\u7528&#xff08;Single Page Application&#xff0c;SPA&#xff09;\u4e5f\u56e0\u6b64\u6210\u4e3a\u524d\u7aef\u5f00\u53d1\u7684\u91cd\u8981\u5f62\u6001\u3002<\/p>\n<p>SPA \u53ea\u6709\u4e00\u4efd\u4e3b\u8981 HTML&#xff0c;\u5374\u4ecd\u7136\u9700\u8981\u8ba9\u4e0d\u540c URL \u5bf9\u5e94\u4e0d\u540c\u5185\u5bb9\u3002\u4f8b\u5982&#xff0c;\u8bbf\u95ee #\/page1 \u663e\u793a\u9875\u9762\u4e00&#xff0c;\u8bbf\u95ee #\/page2 \u663e\u793a\u9875\u9762\u4e8c&#xff1b;\u70b9\u51fb\u6d4f\u89c8\u5668\u7684\u524d\u8fdb\u3001\u540e\u9000\u6309\u94ae\u65f6&#xff0c;\u754c\u9762\u8fd8\u5e94\u8ddf\u968f\u5386\u53f2\u8bb0\u5f55\u6062\u590d\u3002\u89e3\u51b3\u201cURL \u53d8\u5316\u4e0e\u89c6\u56fe\u66f4\u65b0\u5982\u4f55\u5bf9\u5e94\u201d\u8fd9\u4e2a\u95ee\u9898\u7684\u673a\u5236&#xff0c;\u5c31\u662f\u524d\u7aef\u8def\u7531\u3002<\/p>\n<p>\u672c\u6587\u4ece\u4f20\u7edf\u591a\u9875\u9762\u8df3\u8f6c\u8bb2\u8d77&#xff0c;\u5148\u7528\u951a\u70b9\u5b9e\u9a8c\u7406\u89e3 URL \u7684 Hash&#xff0c;\u518d\u9010\u5757\u62c6\u89e3\u4e00\u4e2a\u539f\u751f JavaScript \u5b9e\u73b0\u7684 HashRouter\u3002\u91cd\u70b9\u4e0d\u53ea\u662f\u8bb0\u4f4f hashchange\u3001location.hash \u548c bind \u7684\u5199\u6cd5&#xff0c;\u800c\u662f\u770b\u6e05\u5b83\u4eec\u5982\u4f55\u534f\u4f5c\u6210\u4e00\u6761\u5b8c\u6574\u7684\u8def\u7531\u6267\u884c\u94fe&#xff0c;\u5e76\u8fdb\u4e00\u6b65\u8865\u9f50\u9996\u5c4f\u6e32\u67d3\u3001404 \u515c\u5e95\u3001\u4e8b\u4ef6\u89e3\u7ed1\u548c\u5b89\u5168\u6e32\u67d3\u7b49\u5de5\u7a0b\u7ec6\u8282\u3002<\/p>\n<h2>1. \u4ece\u591a\u9875\u9762\u5e94\u7528\u5230\u5355\u9875\u5e94\u7528<\/h2>\n<h3>1.1 \u4e00\u6b21\u4f20\u7edf\u9875\u9762\u8df3\u8f6c\u53d1\u751f\u4e86\u4ec0\u4e48<\/h3>\n<p>\u4f20\u7edf\u591a\u9875\u9762\u5e94\u7528&#xff08;Multi-Page Application&#xff0c;MPA&#xff09;\u901a\u5e38\u8ba9\u4e00\u4e2a URL \u5bf9\u5e94\u4e00\u4efd\u670d\u52a1\u7aef\u8d44\u6e90\u3002\u4e0b\u9762\u662f\u6700\u5178\u578b\u7684\u5bfc\u822a\u7ed3\u6784&#xff1a;<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>\/demo\/index.html<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9996\u9875<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>\/demo\/about.html<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u5173\u4e8e\u6211\u4eec<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>\u7528\u6237\u70b9\u51fb\u201c\u5173\u4e8e\u6211\u4eec\u201d\u540e&#xff0c;\u6d4f\u89c8\u5668\u4f1a\u628a\u5f53\u524d\u5730\u5740\u5207\u6362\u4e3a \/demo\/about.html&#xff0c;\u5411\u670d\u52a1\u5668\u8bf7\u6c42\u65b0\u9875\u9762&#xff0c;\u7136\u540e\u89e3\u6790 HTML\u3001\u52a0\u8f7d\u4f9d\u8d56\u8d44\u6e90\u3001\u6784\u5efa DOM\/CSSOM \u5e76\u5b8c\u6210\u6e32\u67d3\u3002\u4e0e\u6b64\u540c\u65f6&#xff0c;\u6d4f\u89c8\u5668\u901a\u5e38\u8fd8\u4f1a\u5411\u4f1a\u8bdd\u5386\u53f2\u4e2d\u52a0\u5165\u4e00\u6761\u8bb0\u5f55&#xff0c;\u56e0\u6b64\u524d\u8fdb\u3001\u540e\u9000\u6309\u94ae\u80fd\u591f\u5728\u4e24\u4e2a\u9875\u9762\u4e4b\u95f4\u5bfc\u822a\u3002<\/p>\n<p>\u793a\u4f8b\u4e2d\u7684\u9996\u9875\u4e0e\u5173\u4e8e\u9875\u5206\u522b\u62e5\u6709\u5b8c\u6574\u7684 html\u3001head \u548c body&#xff0c;\u6b63\u662f\u4f20\u7edf\u591a\u9875\u7ed3\u6784\u3002\u5173\u4e8e\u9875\u8fd8\u7ed9\u94fe\u63a5\u6dfb\u52a0\u4e86 target&#061;&#034;_blank&#034;&#xff0c;\u5b83\u4f1a\u5728\u65b0\u7684\u6d4f\u89c8\u4e0a\u4e0b\u6587\u4e2d\u6253\u5f00\u9875\u9762&#xff0c;\u800c\u4e0d\u662f\u66ff\u6362\u5f53\u524d\u9875\u3002\u5b9e\u9645\u9879\u76ee\u82e5\u660e\u786e\u9700\u8981\u65b0\u6807\u7b7e\u9875&#xff0c;\u901a\u5e38\u5199\u6210&#xff1a;<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>\/demo\/about.html<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">target<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>_blank<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">rel<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>noopener<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  \u5173\u4e8e\u6211\u4eec<br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>\u8fd9\u91cc\u7684 rel&#061;&#034;noopener&#034; \u7528\u4e8e\u5207\u65ad\u65b0\u9875\u9762\u901a\u8fc7 window.opener \u64cd\u4f5c\u6765\u6e90\u9875\u9762\u7684\u80fd\u529b&#xff0c;\u662f\u66f4\u7a33\u59a5\u7684\u5b89\u5168\u4e60\u60ef\u3002\u82e5\u5e76\u4e0d\u9700\u8981\u4fdd\u7559\u5f53\u524d\u9875\u9762&#xff0c;\u5219\u4e0d\u5e94\u6ee5\u7528 _blank\u3002<\/p>\n<p>\u4f20\u7edf\u9875\u9762\u5bfc\u822a\u7684\u7279\u70b9\u53ef\u4ee5\u6982\u62ec\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>\u89c2\u5bdf\u7ef4\u5ea6\u4f20\u7edf\u591a\u9875\u9762\u5bfc\u822a<\/tr>\n<tbody>\n<tr>\n<td>URL \u4e0e\u8d44\u6e90<\/td>\n<td>\u4e00\u4e2a URL \u901a\u5e38\u5bf9\u5e94\u4e00\u4efd\u72ec\u7acb HTML \u6216\u670d\u52a1\u7aef\u54cd\u5e94<\/td>\n<\/tr>\n<tr>\n<td>\u9875\u9762\u66f4\u65b0<\/td>\n<td>\u6574\u4e2a\u6587\u6863\u91cd\u65b0\u52a0\u8f7d\u548c\u6e32\u67d3<\/td>\n<\/tr>\n<tr>\n<td>\u516c\u5171\u5e03\u5c40<\/td>\n<td>\u9875\u5934\u3001\u5bfc\u822a\u7b49\u5185\u5bb9\u53ef\u80fd\u88ab\u91cd\u590d\u8fd4\u56de\u4e0e\u89e3\u6790<\/td>\n<\/tr>\n<tr>\n<td>\u6d4f\u89c8\u5386\u53f2<\/td>\n<td>\u6d4f\u89c8\u5668\u539f\u751f\u7ef4\u62a4&#xff0c;\u524d\u8fdb\u548c\u540e\u9000\u884c\u4e3a\u76f4\u89c2<\/td>\n<\/tr>\n<tr>\n<td>\u9996\u6b21\u52a0\u8f7d<\/td>\n<td>\u901a\u5e38\u53ea\u83b7\u53d6\u5f53\u524d\u9875\u9762\u6240\u9700\u5185\u5bb9<\/td>\n<\/tr>\n<tr>\n<td>\u9875\u9762\u5207\u6362\u4f53\u9a8c<\/td>\n<td>\u53d7\u7f51\u7edc\u548c\u670d\u52a1\u7aef\u54cd\u5e94\u5f71\u54cd&#xff0c;\u53ef\u80fd\u51fa\u73b0\u5237\u65b0\u611f\u6216\u767d\u5c4f<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9700\u8981\u7279\u522b\u533a\u5206\u4e24\u4e2a\u5e38\u89c1\u7684\u6d4f\u89c8\u5668\u5bf9\u8c61&#xff1a;navigator \u4e3b\u8981\u63cf\u8ff0\u6d4f\u89c8\u5668\u4e0e\u8fd0\u884c\u73af\u5883&#xff0c;\u4f8b\u5982\u8bed\u8a00\u3001\u5728\u7ebf\u72b6\u6001\u548c User Agent&#xff1b;\u5f53\u524d URL \u7684\u8bfb\u53d6\u4e0e\u8df3\u8f6c\u4e3b\u8981\u7531 window.location \u8d1f\u8d23\u3002\u524d\u7aef\u8def\u7531\u771f\u6b63\u9891\u7e41\u4f7f\u7528\u7684\u662f location&#xff0c;\u800c\u4e0d\u662f navigator\u3002<\/p>\n<h3>1.2 SPA \u4e3a\u4ec0\u4e48\u9700\u8981\u524d\u7aef\u8def\u7531<\/h3>\n<p>SPA \u7684\u6838\u5fc3\u601d\u8def\u662f&#xff1a;\u53ea\u52a0\u8f7d\u4e00\u6b21\u5e94\u7528\u5916\u58f3&#xff0c;\u540e\u7eed\u5207\u6362\u9875\u9762\u65f6\u4fdd\u7559\u5916\u58f3&#xff0c;\u4ec5\u66ff\u6362\u6307\u5b9a\u6302\u8f7d\u70b9\u4e2d\u7684\u5185\u5bb9\u3002\u4f8b\u5982&#xff0c;\u5bfc\u822a\u680f\u59cb\u7ec8\u4fdd\u7559&#xff0c;\u53ea\u628a\u9875\u9762\u5185\u5bb9\u6e32\u67d3\u8fdb #container&#xff1a;<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u56fa\u5b9a\u5bfc\u822a\u533a\u57df<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">&lt;!&#8211; \u8def\u7531\u5339\u914d\u6210\u529f\u540e&#xff0c;\u53ea\u66f4\u65b0\u8fd9\u4e2a\u6302\u8f7d\u70b9 &#8211;&gt;<\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>container<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>\u8fd9\u80fd\u51cf\u5c11\u6574\u9875\u5237\u65b0&#xff0c;\u4fdd\u7559\u5e94\u7528\u7684\u5185\u5b58\u72b6\u6001&#xff0c;\u4e5f\u8ba9\u5207\u6362\u52a8\u753b\u548c\u4ea4\u4e92\u4f53\u9a8c\u66f4\u63a5\u8fd1\u684c\u9762\u6216\u79fb\u52a8 App\u3002\u4e0d\u8fc7&#xff0c;\u5355\u7eaf\u8c03\u7528 DOM API \u66ff\u6362\u5185\u5bb9\u8fd8\u4e0d\u591f&#xff1a;\u5982\u679c\u9875\u9762\u4e00\u3001\u9875\u9762\u4e8c\u59cb\u7ec8\u5171\u7528\u540c\u4e00\u4e2a URL&#xff0c;\u7528\u6237\u5c31\u65e0\u6cd5\u6536\u85cf\u5177\u4f53\u9875\u9762&#xff0c;\u5237\u65b0\u540e\u4e5f\u4e0d\u77e5\u9053\u8be5\u6062\u590d\u54ea\u4e2a\u89c6\u56fe&#xff0c;\u6d4f\u89c8\u5668\u7684\u524d\u8fdb\u4e0e\u540e\u9000\u66f4\u65e0\u4ece\u8c08\u8d77\u3002<\/p>\n<p>\u524d\u7aef\u8def\u7531\u7684\u672c\u8d28&#xff0c;\u662f\u5728\u4e0d\u91cd\u65b0\u52a0\u8f7d\u6574\u4efd\u6587\u6863\u7684\u524d\u63d0\u4e0b&#xff0c;\u5efa\u7acb URL \u72b6\u6001\u4e0e\u9875\u9762\u89c6\u56fe\u4e4b\u95f4\u7684\u6620\u5c04\u5173\u7cfb&#xff0c;\u5e76\u5728 URL \u53d1\u751f\u53d8\u5316\u65f6\u9a71\u52a8\u89c6\u56fe\u66f4\u65b0\u3002<\/p>\n<p>\u4e8e\u662f&#xff0c;\u4e00\u4e2a\u6700\u5c0f\u8def\u7531\u7cfb\u7edf\u81f3\u5c11\u8981\u5b8c\u6210\u4e09\u4ef6\u4e8b&#xff1a;<\/p>\n<ul>\n<li>\u6539\u53d8 URL&#xff1a;\u70b9\u51fb\u5bfc\u822a\u540e&#xff0c;\u5730\u5740\u680f\u5fc5\u987b\u51fa\u73b0\u53ef\u533a\u5206\u7684\u8def\u5f84\u72b6\u6001\u3002<\/li>\n<li>\u76d1\u542c\u53d8\u5316&#xff1a;URL \u72b6\u6001\u6539\u53d8\u65f6&#xff0c;JavaScript \u80fd\u6536\u5230\u901a\u77e5\u3002<\/li>\n<li>\u5339\u914d\u5e76\u6e32\u67d3&#xff1a;\u627e\u5230\u8be5\u8def\u5f84\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570&#xff0c;\u628a\u6b63\u786e\u5185\u5bb9\u653e\u8fdb\u6302\u8f7d\u70b9\u3002<\/li>\n<\/ul>\n<p>Hash \u8def\u7531\u6070\u597d\u63d0\u4f9b\u4e86\u8fd9\u4e09\u9879\u80fd\u529b&#xff0c;\u800c\u4e14\u65e0\u9700\u670d\u52a1\u7aef\u4e3a\u6bcf\u4e2a\u524d\u7aef\u8def\u5f84\u914d\u7f6e\u56de\u9000\u89c4\u5219&#xff0c;\u56e0\u6b64\u5f88\u9002\u5408\u7528\u6765\u7406\u89e3\u524d\u7aef\u8def\u7531\u7684\u57fa\u672c\u6a21\u578b\u3002<\/p>\n<h2>2. \u7406\u89e3 URL\u3001Hash \u4e0e\u6d4f\u89c8\u5386\u53f2<\/h2>\n<h3>2.1 Hash \u662f URL \u4e2d\u7684\u54ea\u4e00\u90e8\u5206<\/h3>\n<p>\u89c2\u5bdf\u4e0b\u9762\u8fd9\u4e2a\u5730\u5740&#xff1a;<\/p>\n<p>https:\/\/www.example.com\/u\/123?a&#061;1&#038;b&#061;2#\/page1<\/p>\n<p>\u5b83\u53ef\u4ee5\u62c6\u6210\u4ee5\u4e0b\u51e0\u90e8\u5206&#xff1a;<\/p>\n<table>\n<tr>URL \u90e8\u5206\u793a\u4f8b\u503c\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td>\u534f\u8bae protocol<\/td>\n<td>https:<\/td>\n<td>\u89c4\u5b9a\u901a\u4fe1\u65b9\u6848<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u673a host<\/td>\n<td>www.example.com<\/td>\n<td>\u6807\u8bc6\u670d\u52a1\u5668\u53ca\u7aef\u53e3<\/td>\n<\/tr>\n<tr>\n<td>\u8def\u5f84 pathname<\/td>\n<td>\/u\/123<\/td>\n<td>\u6807\u8bc6\u670d\u52a1\u7aef\u8d44\u6e90\u8def\u5f84<\/td>\n<\/tr>\n<tr>\n<td>\u67e5\u8be2\u53c2\u6570 search<\/td>\n<td>?a&#061;1&amp;b&#061;2<\/td>\n<td>\u643a\u5e26\u952e\u503c\u5f62\u5f0f\u7684\u8bf7\u6c42\u53c2\u6570<\/td>\n<\/tr>\n<tr>\n<td>\u7247\u6bb5 hash<\/td>\n<td>#\/page1<\/td>\n<td>\u6807\u8bc6\u6587\u6863\u5185\u90e8\u4f4d\u7f6e\u6216\u5ba2\u6237\u7aef\u72b6\u6001<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Hash \u4ece # \u5f00\u59cb&#xff0c;\u6b63\u5f0f\u540d\u79f0\u662f URL Fragment&#xff08;\u7247\u6bb5\u6807\u8bc6\u7b26&#xff09;\u3002\u5b83\u6700\u521d\u7528\u4e8e\u5b9a\u4f4d\u957f\u9875\u9762\u4e2d\u7684\u67d0\u4e2a\u5143\u7d20&#xff0c;\u4f8b\u5982\u8bbf\u95ee article.html#chapter-3 \u65f6\u76f4\u63a5\u6eda\u52a8\u5230\u7b2c\u4e09\u7ae0\u3002\u5b83\u6709\u4e24\u4e2a\u975e\u5e38\u9002\u5408\u524d\u7aef\u8def\u7531\u7684\u7279\u5f81&#xff1a;<\/p>\n<ul>\n<li>\u4fee\u6539\u7247\u6bb5\u4f1a\u6539\u53d8\u5730\u5740\u680f\u548c\u6d4f\u89c8\u5386\u53f2&#xff0c;\u4f46\u901a\u5e38\u4e0d\u4f1a\u89e6\u53d1\u5f53\u524d HTML \u6587\u6863\u7684\u91cd\u65b0\u8bf7\u6c42\u3002<\/li>\n<li>JavaScript \u53ef\u4ee5\u901a\u8fc7 location.hash \u8bfb\u53d6\u7247\u6bb5&#xff0c;\u5e76\u901a\u8fc7 hashchange \u4e8b\u4ef6\u611f\u77e5\u5b83\u7684\u53d8\u5316\u3002<\/li>\n<\/ul>\n<p>\u8fd8\u8981\u6ce8\u610f&#xff0c;Hash \u901a\u5e38\u4e0d\u4f1a\u968f HTTP \u8bf7\u6c42\u53d1\u9001\u7ed9\u670d\u52a1\u5668\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u8bf7\u6c42 https:\/\/example.com\/index.html#\/page1 \u65f6&#xff0c;\u670d\u52a1\u5668\u4e3b\u8981\u770b\u5230\u7684\u662f \/index.html&#xff1b;#\/page1 \u7559\u5728\u6d4f\u89c8\u5668\u7aef\u5904\u7406\u3002\u8fd9\u6b63\u662f Hash \u8def\u7531\u4e0d\u4f9d\u8d56\u670d\u52a1\u7aef\u8bc6\u522b\u524d\u7aef\u8def\u5f84\u7684\u539f\u56e0\u3002<\/p>\n<p><span class=\"token comment\">\/\/ \u5730\u5740\u4e3a https:\/\/example.com\/index.html#\/page1 \u65f6&#xff1a;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>location<span class=\"token punctuation\">.<\/span>pathname<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ &#034;\/index.html&#034;<\/span><br \/>\nconsole<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span>location<span class=\"token punctuation\">.<\/span>hash<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>     <span class=\"token comment\">\/\/ &#034;#\/page1&#034;<\/span><\/p>\n<h3>2.2 \u951a\u70b9\u5b9e\u9a8c&#xff1a;\u5148\u770b\u89c1 Hash \u5982\u4f55\u53d8\u5316<\/h3>\n<p>\u5728\u5b9e\u73b0\u8def\u7531\u5668\u4e4b\u524d&#xff0c;\u53ef\u4ee5\u5148\u7528\u4e00\u4e2a\u957f\u9875\u9762\u89c2\u5bdf Hash \u7684\u539f\u59cb\u7528\u9014\u3002<\/p>\n<p><span class=\"token doctype\"><span class=\"token punctuation\">&lt;!<\/span><span class=\"token doctype-tag\">DOCTYPE<\/span> <span class=\"token name\">html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>html<\/span> <span class=\"token attr-name\">lang<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>zh-CN<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>viewport<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>width&#061;device-width, initial-scale&#061;1.0<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>Hash \u951a\u70b9\u5b9e\u9a8c<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token comment\">&lt;!&#8211; URL \u53d8\u6210 #top \u65f6&#xff0c;\u6d4f\u89c8\u5668\u4f1a\u5b9a\u4f4d\u5230\u8fd9\u4e2a\u5143\u7d20 &#8211;&gt;<\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>top<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#bottom<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u56de\u5230\u5e95\u90e8<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token special-attr\"><span class=\"token attr-name\">style<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span><span class=\"token value css language-css\"><span class=\"token property\">height<\/span><span class=\"token punctuation\">:<\/span> 200vh<span class=\"token punctuation\">;<\/span> <span class=\"token property\">background<\/span><span class=\"token punctuation\">:<\/span> yellow<span class=\"token punctuation\">;<\/span><\/span><span class=\"token punctuation\">&#034;<\/span><\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#top<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u56de\u5230\u9876\u90e8<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token special-attr\"><span class=\"token attr-name\">style<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span><span class=\"token value css language-css\"><span class=\"token property\">height<\/span><span class=\"token punctuation\">:<\/span> 300vh<span class=\"token punctuation\">;<\/span> <span class=\"token property\">background<\/span><span class=\"token punctuation\">:<\/span> red<span class=\"token punctuation\">;<\/span><\/span><span class=\"token punctuation\">&#034;<\/span><\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>bottom<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><span class=\"token language-javascript\"><br \/>\n    window<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;hashchange&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token parameter\">event<\/span><span class=\"token punctuation\">)<\/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;Hash \u6539\u53d8\u4e86&#039;<\/span><span class=\"token punctuation\">)<\/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;\u65b0\u5730\u5740&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> event<span class=\"token punctuation\">.<\/span>newURL<span class=\"token punctuation\">)<\/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;\u65e7\u5730\u5740&#xff1a;&#039;<\/span><span class=\"token punctuation\">,<\/span> event<span class=\"token punctuation\">.<\/span>oldURL<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><br \/>\n  <\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>\u70b9\u51fb\u201c\u56de\u5230\u5e95\u90e8\u201d\u65f6&#xff0c;\u6d4f\u89c8\u5668\u6309\u4ee5\u4e0b\u987a\u5e8f\u5de5\u4f5c&#xff1a;<\/p>\n<li>href&#061;&#034;#bottom&#034; \u628a\u5f53\u524d URL \u7684 Hash \u6539\u4e3a #bottom\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u5728\u6587\u6863\u4e2d\u5bfb\u627e id&#061;&#034;bottom&#034; \u7684\u5143\u7d20\u5e76\u6eda\u52a8\u5b9a\u4f4d\u3002<\/li>\n<li>\u56e0\u4e3a Hash \u786e\u5b9e\u53d1\u751f\u4e86\u53d8\u5316&#xff0c;window \u6d3e\u53d1 hashchange \u4e8b\u4ef6\u3002<\/li>\n<li>\u4e8b\u4ef6\u5bf9\u8c61 event \u63d0\u4f9b\u5b8c\u6574\u7684 oldURL \u4e0e newURL&#xff0c;\u76d1\u542c\u5668\u53ef\u4ee5\u6bd4\u8f83\u5207\u6362\u524d\u540e\u7684\u5730\u5740\u3002<\/li>\n<p>\u65e7\u5f0f HTML \u4e5f\u5141\u8bb8\u901a\u8fc7 &lt;a name&#061;&#034;top&#034;&gt;&lt;\/a&gt; \u5b9a\u4e49\u951a\u70b9&#xff0c;\u5b83\u4ecd\u80fd\u89e3\u91ca\u65e9\u671f\u7f51\u9875\u7684\u5de5\u4f5c\u65b9\u5f0f&#xff0c;\u4f46\u65b0\u4ee3\u7801\u66f4\u63a8\u8350\u76f4\u63a5\u7ed9\u76ee\u6807\u5143\u7d20\u8bbe\u7f6e id\u3002\u53e6\u5916&#xff0c;\u5982\u679c\u5f53\u524d\u5df2\u7ecf\u662f #bottom&#xff0c;\u518d\u6b21\u70b9\u51fb\u540c\u4e00\u4e2a\u94fe\u63a5\u65f6 Hash \u6ca1\u6709\u53d8\u5316&#xff0c;\u901a\u5e38\u4e5f\u5c31\u4e0d\u4f1a\u4ea7\u751f\u65b0\u7684 hashchange\u3002<\/p>\n<p>\u951a\u70b9\u5bfc\u822a\u4e0e Hash \u8def\u7531\u4f7f\u7528\u7684\u662f\u540c\u4e00\u79cd URL \u53d8\u5316\u673a\u5236&#xff0c;\u533a\u522b\u53ea\u5728\u4e8e\u53d8\u5316\u53d1\u751f\u4e4b\u540e\u505a\u4ec0\u4e48&#xff1a;\u951a\u70b9\u5bfc\u822a\u8ba9\u6d4f\u89c8\u5668\u6eda\u52a8\u5230\u5143\u7d20&#xff1b;Hash \u8def\u7531\u5219\u628a #\/page1 \u5f53\u6210\u4e1a\u52a1\u8def\u5f84&#xff0c;\u67e5\u627e\u5904\u7406\u51fd\u6570\u5e76\u66ff\u6362 DOM\u3002<\/p>\n<h2>3. \u624b\u5199 HashRouter&#xff1a;\u9010\u5757\u62c6\u89e3\u6838\u5fc3\u4ee3\u7801<\/h2>\n<h3>3.1 \u9875\u9762\u9aa8\u67b6&#xff1a;\u8def\u7531\u5165\u53e3\u4e0e\u89c6\u56fe\u6302\u8f7d\u70b9<\/h3>\n<p>\u5148\u770b\u9875\u9762\u4e3b\u4f53&#xff1a;<\/p>\n<p><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token comment\">&lt;!&#8211; \u70b9\u51fb\u94fe\u63a5\u53ea\u6539\u53d8 Hash&#xff0c;\u4e0d\u91cd\u65b0\u8bf7\u6c42\u6574\u4efd HTML &#8211;&gt;<\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page1<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e00<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page2<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e8c<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page3<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e09<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p><span class=\"token comment\">&lt;!&#8211; \u6240\u6709\u201c\u9875\u9762\u201d\u6700\u7ec8\u90fd\u6e32\u67d3\u5230\u540c\u4e00\u4e2a\u6302\u8f7d\u70b9 &#8211;&gt;<\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>container<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>href&#061;&#034;#\/page1&#034; \u4e2d\u771f\u6b63\u7684\u8def\u7531\u8def\u5f84\u662f \/page1\u3002\u5728 # \u540e\u4fdd\u7559\u5f00\u5934\u7684 \/ \u4e0d\u662f\u6d4f\u89c8\u5668\u7684\u5f3a\u5236\u8981\u6c42&#xff0c;\u800c\u662f\u4e00\u79cd\u7ea6\u5b9a&#xff1a;\u5b83\u8ba9\u524d\u7aef\u8def\u5f84\u770b\u8d77\u6765\u66f4\u50cf\u666e\u901a URL \u8def\u5f84&#xff0c;\u4e5f\u65b9\u4fbf\u8def\u7531\u8868\u7edf\u4e00\u7ba1\u7406\u3002<\/p>\n<p>#container \u662f\u6574\u4e2a\u793a\u4f8b\u7684\u89c6\u56fe\u6302\u8f7d\u70b9\u3002\u4f20\u7edf\u591a\u9875\u5e94\u7528\u5207\u6362\u7684\u662f\u6574\u4efd HTML&#xff0c;\u5f53\u524d SPA \u5207\u6362\u7684\u53ea\u662f\u8fd9\u4e2a\u5143\u7d20\u7684\u5b50\u8282\u70b9\u3002\u5bfc\u822a\u3001\u6587\u6863\u7ed3\u6784\u548c JavaScript \u8fd0\u884c\u73af\u5883\u90fd\u7ee7\u7eed\u4fdd\u7559\u3002<\/p>\n<p>\u811a\u672c\u653e\u5728 body \u672b\u5c3e\u4e5f\u6709\u5b9e\u9645\u610f\u4e49&#xff1a;\u6d4f\u89c8\u5668\u6267\u884c document.getElementById(&#039;container&#039;) \u65f6&#xff0c;\u6302\u8f7d\u70b9\u5df2\u7ecf\u89e3\u6790\u5b8c\u6210&#xff0c;\u6240\u4ee5\u4e0d\u5fc5\u989d\u5916\u7b49\u5f85 DOMContentLoaded\u3002\u5982\u679c\u811a\u672c\u88ab\u79fb\u52a8\u5230 head \u4e14\u6ca1\u6709 defer&#xff0c;\u67e5\u8be2\u7ed3\u679c\u5c31\u53ef\u80fd\u662f null\u3002<\/p>\n<h3>3.2 \u8def\u7531\u8868&#xff1a;\u4e3a\u4ec0\u4e48\u7528\u5bf9\u8c61\u4fdd\u5b58\u56de\u8c03<\/h3>\n<p>\u6838\u5fc3\u7c7b\u4ece\u6784\u9020\u51fd\u6570\u5f00\u59cb&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">HashRouter<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u6bcf\u4e2a\u8def\u7531\u5668\u5b9e\u4f8b\u90fd\u6709\u4e00\u5f20\u72ec\u7acb\u7684\u8def\u7531\u8868<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u952e\u662f\u8def\u5f84&#xff0c;\u4f8b\u5982 \/page1&#xff1b;\u503c\u662f\u8def\u5f84\u5bf9\u5e94\u7684\u6e32\u67d3\u51fd\u6570<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>class \u662f\u521b\u5efa\u540c\u7c7b\u5bf9\u8c61\u7684\u8bed\u6cd5\u7ed3\u6784&#xff1b;\u8c03\u7528 new HashRouter() \u65f6&#xff0c;JavaScript \u4f1a\u521b\u5efa\u5b9e\u4f8b&#xff0c;\u628a\u5b9e\u4f8b\u7ed1\u5b9a\u4e3a\u6784\u9020\u51fd\u6570\u4e2d\u7684 this&#xff0c;\u518d\u6267\u884c constructor\u3002\u56e0\u6b64&#xff0c;this.routers \u5c5e\u4e8e\u5f53\u524d\u5b9e\u4f8b&#xff0c;\u800c\u4e0d\u662f\u6240\u6709\u5b9e\u4f8b\u5171\u4eab\u7684\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n<p>\u8def\u7531\u8868\u7684\u7ed3\u6784\u53ef\u4ee5\u76f4\u89c2\u5730\u7406\u89e3\u4e3a&#xff1a;<\/p>\n<p><span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token string-property property\">&#039;\/page1&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/* \u6e32\u67d3\u9875\u9762\u4e00 *\/<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token string-property property\">&#039;\/page2&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/* \u6e32\u67d3\u9875\u9762\u4e8c *\/<\/span> <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">,<\/span><br \/>\n  <span class=\"token string-property property\">&#039;\/page3&#039;<\/span><span class=\"token operator\">:<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span> <span class=\"token comment\">\/* \u6e32\u67d3\u9875\u9762\u4e09 *\/<\/span> <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8fd9\u91cc\u4fdd\u5b58\u7684\u662f\u51fd\u6570\u5f15\u7528&#xff0c;\u6ce8\u518c\u65f6\u5e76\u4e0d\u4f1a\u6267\u884c\u3002\u53ea\u6709\u5f53\u524d Hash \u4e0e\u952e\u5339\u914d\u65f6&#xff0c;\u8def\u7531\u5668\u624d\u53d6\u51fa\u5e76\u8c03\u7528\u76f8\u5e94\u51fd\u6570\u3002\u4e8e\u662f&#xff0c;\u8def\u5f84\u8bc6\u522b\u548c\u5177\u4f53\u9875\u9762\u6e32\u67d3\u5b9e\u73b0\u88ab\u5206\u5f00&#xff1a;HashRouter \u53ea\u8d1f\u8d23\u201c\u627e\u8c01\u201d&#xff0c;\u6bcf\u4e2a\u56de\u8c03\u8d1f\u8d23\u201c\u753b\u4ec0\u4e48\u201d\u3002<\/p>\n<p>\u7528\u666e\u901a\u5bf9\u8c61\u505a\u8def\u7531\u8868\u8db3\u4ee5\u89e3\u91ca\u539f\u7406&#xff0c;\u4f46\u5de5\u7a0b\u4ee3\u7801\u66f4\u9002\u5408\u4f7f\u7528 Map \u6216 Object.create(null)\u3002\u666e\u901a\u5bf9\u8c61\u7ee7\u627f\u81ea Object.prototype&#xff0c;\u67d0\u4e9b\u7279\u6b8a\u952e\u540d\u53ef\u80fd\u4e0e\u539f\u578b\u5c5e\u6027\u51b2\u7a81&#xff1b;Map \u5219\u5929\u7136\u8868\u8fbe\u201c\u8def\u5f84\u5230\u5904\u7406\u51fd\u6570\u201d\u7684\u6620\u5c04&#xff0c;\u5e76\u63d0\u4f9b\u660e\u786e\u7684 set\u3001get \u548c has API\u3002<\/p>\n<h3>3.3 \u76d1\u542c Hash&#xff1a;bind \u89e3\u51b3\u7684\u4e0d\u662f\u8bed\u6cd5&#xff0c;\u800c\u662f this<\/h3>\n<p>\u6784\u9020\u51fd\u6570\u4e2d\u6700\u5173\u952e\u7684\u4e00\u6bb5&#xff0c;\u662f\u6ce8\u518c hashchange \u76d1\u542c\u5668&#xff1a;<\/p>\n<p><span class=\"token keyword\">class<\/span> <span class=\"token class-name\">HashRouter<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>    window<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><br \/>\n      <span class=\"token string\">&#039;hashchange&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n      <span class=\"token comment\">\/\/ bind \u4e0d\u4f1a\u7acb\u5373\u6267\u884c load&#xff0c;\u800c\u662f\u8fd4\u56de this \u5df2\u56fa\u5b9a\u7684\u65b0\u51fd\u6570<\/span><br \/>\n      <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">load<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u4e3a\u4ec0\u4e48\u4e0d\u80fd\u76f4\u63a5\u5199 window.addEventListener(&#039;hashchange&#039;, this.load)&#xff1f;\u56e0\u4e3a this.load \u53ea\u662f\u53d6\u51fa\u4e86\u65b9\u6cd5\u7684\u51fd\u6570\u503c&#xff0c;\u7b49 Hash \u6539\u53d8\u540e&#xff0c;\u5b83\u4f1a\u4f5c\u4e3a\u4e8b\u4ef6\u76d1\u542c\u5668\u88ab window \u8c03\u7528\u3002\u5bf9\u4e8e\u8fd9\u79cd\u666e\u901a\u76d1\u542c\u51fd\u6570&#xff0c;\u51fd\u6570\u5185\u90e8\u7684 this \u901a\u5e38\u6307\u5411\u6ce8\u518c\u4e8b\u4ef6\u7684\u5f53\u524d\u76ee\u6807 window&#xff0c;\u4e0d\u518d\u662f HashRouter \u5b9e\u4f8b\u3002\u63a5\u4e0b\u6765\u8bbf\u95ee this.routers&#xff0c;\u5f97\u5230\u7684\u5c31\u4e0d\u662f\u5b9e\u4f8b\u4e2d\u7684\u8def\u7531\u8868\u3002<\/p>\n<p>bind \u6b63\u662f\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u8c03\u7528\u4e0a\u4e0b\u6587\u4e22\u5931\u95ee\u9898&#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> boundLoad <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">load<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5b83\u4f1a\u521b\u5efa\u4e00\u4e2a\u65b0\u51fd\u6570&#xff0c;\u5e76\u628a\u65b0\u51fd\u6570\u4ee5\u540e\u6267\u884c\u65f6\u7684 this \u6c38\u4e45\u56fa\u5b9a\u4e3a\u5f53\u524d\u8def\u7531\u5668\u5b9e\u4f8b\u3002\u9700\u8981\u7ea0\u6b63\u4e00\u4e2a\u5e38\u89c1\u8bef\u89e3&#xff1a;\u7ecf\u8fc7 this.load.bind(this) \u540e&#xff0c;load() \u5185\u7684 this \u6307\u5411 HashRouter \u5b9e\u4f8b&#xff0c;\u800c\u4e0d\u662f window\u3002\u53ef\u4ee5\u4ece load() \u4e2d\u8f93\u51fa\u5b9e\u4f8b\u8fdb\u884c\u9a8c\u8bc1\u3002<\/p>\n<p>bind\u3001call \u548c apply \u90fd\u80fd\u63a7\u5236 this&#xff0c;\u4f46\u4f7f\u7528\u65f6\u673a\u4e0d\u540c&#xff1a;<\/p>\n<table>\n<tr>\u65b9\u6cd5\u662f\u5426\u7acb\u5373\u8c03\u7528\u539f\u51fd\u6570\u53c2\u6570\u5f62\u5f0f\u8fd9\u91cc\u662f\u5426\u9002\u7528<\/tr>\n<tbody>\n<tr>\n<td>fn.bind(thisArg)<\/td>\n<td align=\"right\">\u5426&#xff0c;\u8fd4\u56de\u65b0\u51fd\u6570<\/td>\n<td>\u540e\u7eed\u53c2\u6570\u53ef\u9884\u7f6e<\/td>\n<td>\u9002\u5408&#xff0c;\u4e8b\u4ef6\u7cfb\u7edf\u9700\u8981\u4e00\u4e2a\u5f85\u8c03\u7528\u7684\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>fn.call(thisArg, a, b)<\/td>\n<td align=\"right\">\u662f<\/td>\n<td>\u53c2\u6570\u9010\u4e2a\u4f20\u5165<\/td>\n<td>\u4e0d\u9002\u5408\u76f4\u63a5\u6ce8\u518c&#xff0c;\u4f1a\u7acb\u523b\u6267\u884c<\/td>\n<\/tr>\n<tr>\n<td>fn.apply(thisArg, [a, b])<\/td>\n<td align=\"right\">\u662f<\/td>\n<td>\u53c2\u6570\u4ee5\u6570\u7ec4\u4f20\u5165<\/td>\n<td>\u4e0d\u9002\u5408\u76f4\u63a5\u6ce8\u518c&#xff0c;\u4f1a\u7acb\u523b\u6267\u884c<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u4e5f\u4e0d\u80fd\u5199 this.load()&#xff0c;\u56e0\u4e3a\u8fd9\u4f1a\u5728\u6784\u9020\u9636\u6bb5\u9a6c\u4e0a\u8c03\u7528\u65b9\u6cd5&#xff0c;\u5e76\u628a\u5b83\u7684\u8fd4\u56de\u503c undefined \u4ea4\u7ed9 addEventListener\u3002\u4e8b\u4ef6\u7cfb\u7edf\u9700\u8981\u7684\u662f\u51fd\u6570&#xff0c;\u800c\u4e0d\u662f\u51fd\u6570\u8c03\u7528\u7ed3\u679c\u3002<\/p>\n<p>\u8fd9\u4e2a\u5199\u6cd5\u8fd8\u6709\u4e00\u4e2a\u5de5\u7a0b\u7ec6\u8282&#xff1a;\u6bcf\u6b21\u6267\u884c bind \u90fd\u4f1a\u751f\u6210\u65b0\u7684\u51fd\u6570\u5bf9\u8c61\u3002\u5982\u679c\u4ee5\u540e\u9700\u8981 removeEventListener&#xff0c;\u5c31\u5fc5\u987b\u4fdd\u7559\u540c\u4e00\u4e2a\u5f15\u7528\u3002\u56e0\u6b64\u589e\u5f3a\u7248\u4f1a\u628a\u7ed1\u5b9a\u7ed3\u679c\u4fdd\u5b58\u5230\u5b9e\u4f8b\u5c5e\u6027\u4e2d\u3002<\/p>\n<h3>3.4 register&#xff1a;\u6ce8\u518c\u53ea\u5efa\u6620\u5c04&#xff0c;\u4e0d\u8d1f\u8d23\u6e32\u67d3<\/h3>\n<p>register \u65b9\u6cd5\u975e\u5e38\u77ed&#xff0c;\u5374\u4f53\u73b0\u4e86\u8def\u7531\u5668\u6700\u91cd\u8981\u7684\u62bd\u8c61&#xff1a;<\/p>\n<p><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">hash<span class=\"token punctuation\">,<\/span> callback<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u4f8b\u5982&#xff1a;this.routers[&#039;\/page1&#039;] &#061; renderPage1<\/span><br \/>\n  <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span>hash<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> callback<span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8c03\u7528 router.register(&#039;\/page1&#039;, callback) \u540e&#xff0c;\u8def\u7531\u8868\u4e2d\u5c31\u591a\u4e86\u4e00\u9879 \/page1 \u2192 callback\u3002\u6b64\u65f6\u9875\u9762\u6ca1\u6709\u53d8\u5316&#xff0c;\u56e0\u4e3a\u6ce8\u518c\u9636\u6bb5\u53ea\u8d1f\u8d23\u6784\u5efa\u914d\u7f6e\u3002\u628a\u201c\u6ce8\u518c\u201d\u548c\u201c\u6267\u884c\u201d\u5206\u5f00\u540e&#xff0c;\u65b0\u589e\u9875\u9762\u65e0\u9700\u4fee\u6539 load() \u7684\u5224\u65ad\u903b\u8f91&#xff0c;\u53ea\u9700\u7ee7\u7eed\u6dfb\u52a0\u6620\u5c04\u5373\u53ef\u3002<\/p>\n<p>\u5982\u679c\u91c7\u7528\u5927\u91cf if&#8230;else&#xff0c;\u4ee3\u7801\u4f1a\u968f\u9875\u9762\u6570\u91cf\u7ebf\u6027\u81a8\u80c0&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u4e0d\u5229\u4e8e\u6269\u5c55\u7684\u5199\u6cd5<\/span><br \/>\n<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>hash <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;\/page1&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">renderPage1<\/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 keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>hash <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;\/page2&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">renderPage2<\/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 keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>hash <span class=\"token operator\">&#061;&#061;&#061;<\/span> <span class=\"token string\">&#039;\/page3&#039;<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token function\">renderPage3<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u8def\u7531\u8868\u628a\u6761\u4ef6\u5206\u652f\u8f6c\u5316\u4e3a\u4e00\u6b21\u5c5e\u6027\u67e5\u627e&#xff0c;\u8fd9\u4e5f\u662f\u5404\u79cd\u8def\u7531\u5e93\u90fd\u4f1a\u7ef4\u62a4\u201c\u8def\u7531\u914d\u7f6e\u8868\u201d\u7684\u6839\u672c\u539f\u56e0\u3002\u771f\u5b9e\u6846\u67b6\u8fd8\u4f1a\u5728\u6b64\u57fa\u7840\u4e0a\u52a0\u5165\u52a8\u6001\u53c2\u6570\u3001\u5d4c\u5957\u8def\u7531\u3001\u61d2\u52a0\u8f7d\u3001\u5bfc\u822a\u5b88\u536b\u7b49\u80fd\u529b\u3002<\/p>\n<h3>3.5 load&#xff1a;\u8bfb\u53d6\u3001\u89c4\u8303\u5316\u3001\u5339\u914d\u3001\u6267\u884c<\/h3>\n<p>load() \u662f\u8def\u7531\u5339\u914d\u7684\u6838\u5fc3&#xff0c;\u53ef\u4ee5\u6309\u56db\u4e2a\u52a8\u4f5c\u7406\u89e3&#xff1a;<\/p>\n<p><span class=\"token function\">load<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ 1. location.hash \u4f1a\u5f97\u5230 &#034;#\/page1&#034;<\/span><br \/>\n  <span class=\"token comment\">\/\/    slice(1) \u53bb\u6389\u5f00\u5934\u7684 #&#xff0c;\u5f97\u5230\u8def\u7531\u8868\u4f7f\u7528\u7684 &#034;\/page1&#034;<\/span><br \/>\n  <span class=\"token keyword\">const<\/span> hash <span class=\"token operator\">&#061;<\/span> location<span class=\"token punctuation\">.<\/span>hash<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token keyword\">let<\/span> handler<span class=\"token punctuation\">;<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 2. \u7a7a Hash \u88ab\u89c4\u8303\u4e3a\u6839\u8def\u5f84 \/<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>hash<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    handler <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span> <span class=\"token keyword\">else<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token comment\">\/\/ 3. \u7528\u5f53\u524d\u8def\u5f84\u67e5\u8be2\u5bf9\u5e94\u7684\u5904\u7406\u51fd\u6570<\/span><br \/>\n    handler <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span>hash<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><\/p>\n<p>  <span class=\"token comment\">\/\/ 4. \u53ea\u6709\u5339\u914d\u6210\u529f\u624d\u6267\u884c&#xff0c;\u907f\u514d\u8c03\u7528 undefined \u62a5\u9519<\/span><br \/>\n  <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>handler<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token function\">handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n  <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p>\u5047\u8bbe\u5f53\u524d\u5730\u5740\u662f http:\/\/127.0.0.1:5500\/demo2\/index.html#\/page2&#xff0c;\u6bcf\u4e00\u6b65\u7684\u6570\u636e\u53d8\u5316\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>\u6267\u884c\u9636\u6bb5\u8868\u8fbe\u5f0f\u6216\u52a8\u4f5c\u7ed3\u679c<\/tr>\n<tbody>\n<tr>\n<td>\u8bfb\u53d6\u5730\u5740<\/td>\n<td>location.hash<\/td>\n<td>&#034;#\/page2&#034;<\/td>\n<\/tr>\n<tr>\n<td>\u53bb\u6389\u4e95\u53f7<\/td>\n<td>.slice(1)<\/td>\n<td>&#034;\/page2&#034;<\/td>\n<\/tr>\n<tr>\n<td>\u67e5\u8be2\u8def\u7531\u8868<\/td>\n<td>this.routers[&#039;\/page2&#039;]<\/td>\n<td>\u9875\u9762\u4e8c\u7684\u56de\u8c03\u51fd\u6570<\/td>\n<\/tr>\n<tr>\n<td>\u6267\u884c\u5904\u7406\u5668<\/td>\n<td>handler()<\/td>\n<td>#container \u663e\u793a\u201c\u9875\u9762\u4e8c\u201d<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>slice(1) \u8868\u793a\u4ece\u7d22\u5f15 1 \u4e00\u76f4\u622a\u53d6\u5230\u5b57\u7b26\u4e32\u7ed3\u5c3e\u3002\u56e0\u4e3a\u7d22\u5f15 0 \u6b63\u597d\u662f #&#xff0c;\u6240\u4ee5\u5b83\u6bd4\u624b\u5de5\u66ff\u6362\u66f4\u76f4\u63a5\u3002\u5982\u679c\u5730\u5740\u6ca1\u6709 Hash&#xff0c;location.hash \u662f\u7a7a\u5b57\u7b26\u4e32&#xff0c;slice(1) \u4ecd\u7136\u5f97\u5230\u7a7a\u5b57\u7b26\u4e32&#xff0c;\u968f\u540e\u8fdb\u5165\u6839\u8def\u5f84\u5206\u652f\u3002<\/p>\n<p>if (handler) \u662f\u6700\u5c0f\u7684\u9632\u5fa1\u6027\u5224\u65ad&#xff1a;\u8bbf\u95ee\u6ca1\u6709\u6ce8\u518c\u7684 #\/unknown \u65f6&#xff0c;\u5c5e\u6027\u67e5\u627e\u5f97\u5230 undefined&#xff0c;\u8def\u7531\u5668\u4e0d\u4f1a\u76f2\u76ee\u8c03\u7528\u5b83\u3002\u4e0d\u8fc7&#xff0c;\u8fd9\u4e5f\u610f\u5473\u7740\u65e7\u89c6\u56fe\u4f1a\u7ee7\u7eed\u7559\u5728\u5c4f\u5e55\u4e0a&#xff0c;\u7528\u6237\u4e0d\u77e5\u9053\u5bfc\u822a\u5931\u8d25\u3002\u540e\u6587\u4f1a\u7528\u901a\u914d\u5904\u7406\u5668\u663e\u793a 404\u3002<\/p>\n<p>\u8fd8\u6709\u4e24\u4e2a\u7ec6\u8282\u5fc5\u987b\u770b\u6e05&#xff1a;<\/p>\n<ul>\n<li>\u6e90\u7801\u867d\u7136\u5c1d\u8bd5\u67e5\u627e\u6839\u8def\u5f84 \/&#xff0c;\u4f46\u5e76\u6ca1\u6709\u6ce8\u518c \/ \u7684\u56de\u8c03&#xff0c;\u6240\u4ee5\u65e0 Hash \u9996\u6b21\u6253\u5f00\u65f6\u4f9d\u7136\u6ca1\u6709\u5185\u5bb9\u3002<\/li>\n<li>hashchange \u53ea\u5728 Hash \u53d1\u751f\u53d8\u5316\u540e\u89e6\u53d1\u3002\u76f4\u63a5\u6253\u5f00\u5df2\u7ecf\u5e26\u6709 #\/page2 \u7684\u5730\u5740\u65f6&#xff0c;\u4ec5\u4ec5\u6ce8\u518c\u76d1\u542c\u5668\u4e0d\u4f1a\u81ea\u52a8\u6267\u884c load()&#xff0c;\u9996\u5c4f\u4e5f\u53ef\u80fd\u4e3a\u7a7a\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u4e24\u4e2a\u95ee\u9898\u90fd\u9700\u8981\u901a\u8fc7\u6ce8\u518c\u6839\u8def\u7531\u5e76\u4e3b\u52a8\u6267\u884c\u4e00\u6b21\u9996\u5c4f\u6e32\u67d3\u6765\u89e3\u51b3\u3002<\/p>\n<h3>3.6 \u5b9e\u4f8b\u5316\u4e0e\u9875\u9762\u56de\u8c03&#xff1a;\u95ed\u5305\u628a\u89c6\u56fe\u8fde\u63a5\u8d77\u6765<\/h3>\n<p>\u6700\u540e\u4e00\u5757\u4ee3\u7801\u8d1f\u8d23\u521b\u5efa\u8def\u7531\u5668\u3001\u627e\u5230\u6302\u8f7d\u70b9\u5e76\u6ce8\u518c\u4e09\u4e2a\u9875\u9762&#xff1a;<\/p>\n<p><span class=\"token keyword\">const<\/span> router <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashRouter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">const<\/span> container <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;container&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page1&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  <span class=\"token comment\">\/\/ \u5f53\u524d\u5185\u5bb9\u662f\u56fa\u5b9a\u5b57\u7b26\u4e32&#xff0c;\u56e0\u6b64\u793a\u4f8b\u4e2d\u4e0d\u5b58\u5728\u5916\u90e8\u8f93\u5165\u6ce8\u5165<\/span><br \/>\n  container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e00&lt;\/h1&gt;&#039;<\/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>router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page2&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e8c&lt;\/h1&gt;&#039;<\/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>router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page3&#039;<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">function<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n  container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e09&lt;\/h1&gt;&#039;<\/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>\u4e09\u4e2a\u56de\u8c03\u90fd\u4f7f\u7528\u4e86\u5916\u5c42\u4f5c\u7528\u57df\u4e2d\u7684 container\u3002\u5373\u4f7f\u6ce8\u518c\u4ee3\u7801\u6267\u884c\u5b8c\u6bd5&#xff0c;\u56de\u8c03\u4ee5\u540e\u88ab handler() \u8c03\u7528\u65f6\u4ecd\u80fd\u8bbf\u95ee\u8fd9\u4e2a\u53d8\u91cf&#xff0c;\u8fd9\u5c31\u662f\u95ed\u5305&#xff1a;\u51fd\u6570\u4f1a\u8bb0\u4f4f\u5176\u521b\u5efa\u4f4d\u7f6e\u7684\u8bcd\u6cd5\u4f5c\u7528\u57df\u3002\u4e8e\u662f&#xff0c;\u8def\u7531\u5904\u7406\u5668\u65e0\u9700\u628a\u6302\u8f7d\u70b9\u8bbe\u6210\u5168\u5c40\u53d8\u91cf&#xff0c;\u4e5f\u80fd\u5728\u672a\u6765\u7684\u4e8b\u4ef6\u56de\u8c03\u4e2d\u66f4\u65b0\u5b83\u3002<\/p>\n<p>innerHTML \u4f1a\u628a\u5b57\u7b26\u4e32\u89e3\u6790\u6210 DOM&#xff0c;\u5e76\u66ff\u6362\u5bb9\u5668\u539f\u6709\u7684\u5168\u90e8\u5b50\u8282\u70b9\u3002\u5b83\u9002\u5408\u5c55\u793a\u6700\u5c0f\u793a\u4f8b&#xff0c;\u4f46\u8981\u4e86\u89e3\u5b83\u7684\u8fb9\u754c&#xff1a;<\/p>\n<ul>\n<li>\u66ff\u6362\u8282\u70b9\u4f1a\u4e22\u5931\u65e7\u5b50\u6811\u4e2d\u7684 DOM \u72b6\u6001\u4e0e\u4e8b\u4ef6\u76d1\u542c\u5668\u3002<\/li>\n<li>\u628a\u7528\u6237\u8f93\u5165\u6216\u63a5\u53e3\u8fd4\u56de\u503c\u76f4\u63a5\u62fc\u8fdb innerHTML&#xff0c;\u53ef\u80fd\u4ea7\u751f\u8de8\u7ad9\u811a\u672c\u653b\u51fb&#xff08;XSS&#xff09;\u3002<\/li>\n<li>\u9875\u9762\u590d\u6742\u540e&#xff0c;\u624b\u5de5\u62fc\u63a5\u5b57\u7b26\u4e32\u4e0d\u5229\u4e8e\u7ec4\u4ef6\u590d\u7528\u548c\u7cbe\u786e\u66f4\u65b0\u3002<\/li>\n<\/ul>\n<p>\u8fd9\u91cc\u5199\u5165\u7684\u662f\u5f00\u53d1\u8005\u5b9a\u4e49\u7684\u56fa\u5b9a\u5b57\u7b26\u4e32&#xff0c;\u6240\u4ee5\u98ce\u9669\u53ef\u63a7\u3002\u5904\u7406\u4e0d\u53ef\u4fe1\u6587\u672c\u65f6&#xff0c;\u5e94\u4f18\u5148\u4f7f\u7528 textContent&#xff1b;\u590d\u6742\u5e94\u7528\u5219\u901a\u5e38\u4ea4\u7ed9 Vue\u3001React \u7b49\u6846\u67b6\u7684\u6e32\u67d3\u7cfb\u7edf\u7ba1\u7406\u3002<\/p>\n<p>\u5b8c\u6574\u4ee3\u7801\u5c55\u793a&#xff1a;<\/p>\n<p><span class=\"token doctype\"><span class=\"token punctuation\">&lt;!<\/span><span class=\"token doctype-tag\">DOCTYPE<\/span> <span class=\"token name\">html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>html<\/span> <span class=\"token attr-name\">lang<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>en<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">charset<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>UTF-8<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>meta<\/span> <span class=\"token attr-name\">name<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>viewport<span class=\"token punctuation\">&#034;<\/span><\/span> <span class=\"token attr-name\">content<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>width&#061;device-width, initial-scale&#061;1.0<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span>SPA<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>title<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>head<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page1<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e00<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span> <span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page2<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e8c<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span> <span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n      <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>a<\/span> <span class=\"token attr-name\">href<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>#\/page3<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span>\u9875\u9762\u4e09<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>a<\/span> <span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>li<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>ul<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n    <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>nav<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>header<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>div<\/span> <span class=\"token attr-name\">id<\/span><span class=\"token attr-value\"><span class=\"token punctuation attr-equals\">&#061;<\/span><span class=\"token punctuation\">&#034;<\/span>container<span class=\"token punctuation\">&#034;<\/span><\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<p>  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>div<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n  <span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><span class=\"token script\"><span class=\"token language-javascript\"><br \/>\n    <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">HashRouter<\/span><span class=\"token punctuation\">{<\/span><br \/>\n      <span class=\"token function\">constructor<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ this \u5b9e\u4f8b<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers <span class=\"token operator\">&#061;<\/span> <span class=\"token punctuation\">{<\/span><span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u524d\u540e\u7aef\u5206\u79bb\u7684&#xff0c;\u524d\u7aef\u4e5f\u8981\u72ec\u7acb\u7684\u8def\u7531<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u4f20\u7edf\u7684\u591a\u9875\u5f00\u53d1&#xff0c;\u524d\u7aef\u6ca1\u6709\u72ec\u7acb\u7684\u8def\u7531 \u524d\u7aef\u8def\u7531\u96c6\u5408<\/span><br \/>\n        window<span class=\"token punctuation\">.<\/span><span class=\"token function\">addEventListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;hashchange&#039;<\/span><span class=\"token punctuation\">,<\/span><br \/>\n        <span class=\"token comment\">\/\/ this \u6307\u5411\u4e8b\u4ef6\u53d1\u751f\u7684\u5bf9\u8c61 window<\/span><br \/>\n        <span class=\"token comment\">\/\/ apply call \u624b\u52a8\u6307\u5b9athis \u533a\u522b\u662f\u53c2\u6570<\/span><br \/>\n        <span class=\"token comment\">\/\/ bind \u8fd4\u56de\u4e00\u4e2a\u65b0\u51fd\u6570<\/span><br \/>\n          <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">load<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">bind<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><br \/>\n        <span class=\"token punctuation\">)<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token parameter\">hash<span class=\"token punctuation\">,<\/span>callback<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span>hash<span class=\"token punctuation\">]<\/span> <span class=\"token operator\">&#061;<\/span> callback<span class=\"token punctuation\">;<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token function\">load<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token comment\">\/\/ \u5bf9\u8c61\u7684\u5c5e\u6027\u6216\u65b9\u6cd5<\/span><br \/>\n        console<span class=\"token punctuation\">.<\/span><span class=\"token function\">log<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">this<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ this -&gt; window<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> hash <span class=\"token operator\">&#061;<\/span> location<span class=\"token punctuation\">.<\/span>hash<span class=\"token punctuation\">.<\/span><span class=\"token function\">slice<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/ \u5207\u6389#<\/span><br \/>\n        <span class=\"token comment\">\/\/ console.log(hash);<\/span><br \/>\n        <span class=\"token keyword\">let<\/span> handler<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span>hash<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n          handler <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span><span class=\"token string\">&#039;\/&#039;<\/span><span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><span class=\"token keyword\">else<\/span><span class=\"token punctuation\">{<\/span><br \/>\n          handler <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>routers<span class=\"token punctuation\">[<\/span>hash<span class=\"token punctuation\">]<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">if<\/span><span class=\"token punctuation\">(<\/span>handler<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n          <span class=\"token function\">handler<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n      <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ \u6302\u8f7d\u70b9 \u53ea\u9700\u8981\u52a8\u6001\u4fee\u6539\u5b83<\/span><br \/>\n    <span class=\"token comment\">\/\/ spa \u6781\u5927\u7684\u63d0\u5347\u4e86\u7528\u6237\u4f53\u9a8c<\/span><br \/>\n    <span class=\"token comment\">\/\/ \u524d\u7aef\u8def\u7531<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> router<span class=\"token operator\">&#061;<\/span><span class=\"token keyword\">new<\/span> <span class=\"token class-name\">HashRouter<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">let<\/span> container <span class=\"token operator\">&#061;<\/span> document<span class=\"token punctuation\">.<\/span><span class=\"token function\">getElementById<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;container&#039;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page1&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n      container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e00&lt;\/h1&gt;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page2&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n      container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e8c&lt;\/h1&gt;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    router<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page3&#039;<\/span><span class=\"token punctuation\">,<\/span><span class=\"token keyword\">function<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span><br \/>\n      container<span class=\"token punctuation\">.<\/span>innerHTML <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#039;&lt;h1&gt;\u9875\u9762\u4e09&lt;\/h1&gt;&#039;<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><span class=\"token punctuation\">)<\/span><br \/>\n  <\/span><\/span><span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>script<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>body<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><br \/>\n<span class=\"token tag\"><span class=\"token tag\"><span class=\"token punctuation\">&lt;\/<\/span>html<\/span><span class=\"token punctuation\">&gt;<\/span><\/span><\/p>\n<h2>4. \u628a\u788e\u7247\u4e32\u8d77\u6765&#xff1a;\u4e00\u6b21\u8def\u7531\u5207\u6362\u7684\u5b8c\u6574\u6267\u884c\u94fe<\/h2>\n<h3>4.1 \u4ece\u70b9\u51fb\u9875\u9762\u4e8c\u5230\u89c6\u56fe\u66f4\u65b0<\/h3>\n<p>\u5355\u72ec\u770b\u6bcf\u4e2a API \u5e76\u4e0d\u590d\u6742&#xff0c;\u771f\u6b63\u91cd\u8981\u7684\u662f\u7406\u89e3\u5b83\u4eec\u7684\u534f\u4f5c\u987a\u5e8f\u3002\u5047\u8bbe\u9875\u9762\u5df2\u5b8c\u6210\u521d\u59cb\u5316&#xff0c;\u7528\u6237\u70b9\u51fb\u201c\u9875\u9762\u4e8c\u201d&#xff0c;\u5b8c\u6574\u94fe\u8def\u5982\u4e0b&#xff1a;<\/p>\n<li>\u6d4f\u89c8\u5668\u89e3\u6790 &lt;a href&#061;&#034;#\/page2&#034;&gt;&#xff0c;\u628a\u5730\u5740\u680f\u7684 Hash \u66f4\u65b0\u4e3a #\/page2\u3002<\/li>\n<li>\u6587\u6863\u4e3b\u4f53\u6ca1\u6709\u91cd\u65b0\u8bf7\u6c42&#xff0c;\u5f53\u524d JavaScript \u8fd0\u884c\u73af\u5883\u4e5f\u6ca1\u6709\u88ab\u9500\u6bc1\u3002<\/li>\n<li>\u6d4f\u89c8\u5668\u5411 window \u6d3e\u53d1 hashchange \u4e8b\u4ef6&#xff0c;\u5e76\u8c03\u7528\u6784\u9020\u51fd\u6570\u4e2d\u6ce8\u518c\u7684\u7ed1\u5b9a\u51fd\u6570\u3002<\/li>\n<li>bind \u4fdd\u8bc1 load() \u5185\u90e8\u7684 this \u4ecd\u662f\u5f53\u524d HashRouter \u5b9e\u4f8b\u3002<\/li>\n<li>load() \u8bfb\u53d6 location.hash&#xff0c;\u901a\u8fc7 slice(1) \u5f97\u5230 \/page2\u3002<\/li>\n<li>\u8def\u7531\u5668\u4ece this.routers \u4e2d\u53d6\u51fa \/page2 \u5bf9\u5e94\u7684\u56de\u8c03\u3002<\/li>\n<li>\u56de\u8c03\u901a\u8fc7\u95ed\u5305\u8bbf\u95ee container&#xff0c;\u628a\u5176\u5185\u5bb9\u66ff\u6362\u6210 &lt;h1&gt;\u9875\u9762\u4e8c&lt;\/h1&gt;\u3002<\/li>\n<li>\u7528\u6237\u770b\u5230\u9875\u9762\u5c40\u90e8\u66f4\u65b0&#xff1b;\u4f7f\u7528\u6d4f\u89c8\u5668\u540e\u9000\u65f6&#xff0c;\u5386\u53f2\u8bb0\u5f55\u6062\u590d\u65e7 Hash&#xff0c;\u518d\u6b21\u89e6\u53d1\u540c\u4e00\u5957\u5339\u914d\u4e0e\u6e32\u67d3\u6d41\u7a0b\u3002<\/li>\n<p>\u8fd9\u6761\u94fe\u8def\u53ef\u4ee5\u6d53\u7f29\u6210\u4e00\u5f20\u9636\u6bb5\u8868&#xff1a;<\/p>\n<table>\n<tr>\u5c42\u6b21\u8d1f\u8d23\u8005\u6838\u5fc3\u4efb\u52a1<\/tr>\n<tbody>\n<tr>\n<td>\u4ea4\u4e92\u5165\u53e3<\/td>\n<td>&lt;a href&#061;&#034;#\/page2&#034;&gt;<\/td>\n<td>\u58f0\u660e\u76ee\u6807 URL \u72b6\u6001<\/td>\n<\/tr>\n<tr>\n<td>\u72b6\u6001\u53d8\u5316<\/td>\n<td>\u6d4f\u89c8\u5668\u5730\u5740\u680f\u4e0e\u5386\u53f2\u8bb0\u5f55<\/td>\n<td>\u66f4\u65b0 Hash&#xff0c;\u4fdd\u7559\u540c\u4e00\u6587\u6863<\/td>\n<\/tr>\n<tr>\n<td>\u53d8\u5316\u901a\u77e5<\/td>\n<td>hashchange<\/td>\n<td>\u901a\u77e5 JavaScript \u91cd\u65b0\u5339\u914d<\/td>\n<\/tr>\n<tr>\n<td>\u8def\u5f84\u89e3\u6790<\/td>\n<td>location.hash.slice(1)<\/td>\n<td>\u628a URL \u7247\u6bb5\u8f6c\u6210\u8def\u7531\u8def\u5f84<\/td>\n<\/tr>\n<tr>\n<td>\u8def\u7531\u5339\u914d<\/td>\n<td>this.routers[hash]<\/td>\n<td>\u627e\u5230\u8def\u5f84\u5bf9\u5e94\u7684\u5904\u7406\u5668<\/td>\n<\/tr>\n<tr>\n<td>\u89c6\u56fe\u6e32\u67d3<\/td>\n<td>\u8def\u7531\u56de\u8c03\u4e0e DOM API<\/td>\n<td>\u66f4\u65b0 #container \u5185\u5bb9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e3a\u4ec0\u4e48\u6d4f\u89c8\u5668\u540e\u9000\u4e0d\u9700\u8981\u5355\u72ec\u5199\u4e00\u4e2a\u201c\u540e\u9000\u6309\u94ae\u5904\u7406\u5668\u201d&#xff1a;\u540e\u9000\u64cd\u4f5c\u6539\u53d8\u5386\u53f2\u8bb0\u5f55\u4e2d\u7684 Hash&#xff0c;hashchange \u76d1\u542c\u5668\u4ecd\u4f1a\u63a5\u4f4f\u53d8\u5316&#xff0c;\u518d\u6839\u636e\u6062\u590d\u540e\u7684 URL \u6e32\u67d3\u89c6\u56fe\u3002URL \u662f\u72b6\u6001\u6765\u6e90&#xff0c;\u89c6\u56fe\u662f\u8be5\u72b6\u6001\u7684\u7ed3\u679c&#xff0c;\u8fd9\u662f\u524d\u7aef\u8def\u7531\u6bd4\u201c\u70b9\u51fb\u540e\u76f4\u63a5\u6539 DOM\u201d\u66f4\u53ef\u9760\u7684\u5730\u65b9\u3002<\/p>\n<h3>4.2 \u9996\u6b21\u52a0\u8f7d\u4e3a\u4ec0\u4e48\u662f\u7279\u6b8a\u573a\u666f<\/h3>\n<p>\u4e8b\u4ef6\u9a71\u52a8\u4ee3\u7801\u5f88\u5bb9\u6613\u5ffd\u7565\u9996\u5c4f\u3002\u7528\u6237\u7b2c\u4e00\u6b21\u6253\u5f00 index.html#\/page3 \u65f6&#xff0c;\u9875\u9762\u5f00\u59cb\u6267\u884c\u811a\u672c\u4e4b\u524d&#xff0c;URL \u4e2d\u5df2\u7ecf\u662f #\/page3\u3002\u76d1\u542c\u5668\u53ea\u80fd\u6355\u83b7\u672a\u6765\u53d1\u751f\u7684\u53d8\u5316&#xff0c;\u4e0d\u80fd\u8865\u53d1\u8fc7\u53bb\u7684\u4e8b\u4ef6&#xff0c;\u56e0\u6b64\u5fc5\u987b\u5728\u6240\u6709\u8def\u7531\u6ce8\u518c\u5b8c\u6210\u540e\u4e3b\u52a8\u8c03\u7528\u4e00\u6b21 load()&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ \u5148\u6ce8\u518c&#xff0c;\u540e\u52a0\u8f7d&#xff1b;\u987a\u5e8f\u4e0d\u80fd\u53cd<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">register<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#039;\/page3&#039;<\/span><span class=\"token punctuation\">,<\/span> renderPage3<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token comment\">\/\/ \u6839\u636e\u9875\u9762\u542f\u52a8\u65f6\u5df2\u7ecf\u5b58\u5728\u7684 Hash \u5b8c\u6210\u9996\u5c4f\u5339\u914d<\/span><br \/>\nrouter<span class=\"token punctuation\">.<\/span><span class=\"token function\">load<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p>\u5982\u679c\u5148 load() \u518d\u6ce8\u518c&#xff0c;\u8def\u7531\u8868\u8fd8\u662f\u7a7a\u7684&#xff0c;\u540c\u6837\u65e0\u6cd5\u5339\u914d\u3002\u56e0\u6b64\u4e00\u4e2a\u5b8c\u6574\u7684\u8def\u7531\u5668\u901a\u5e38\u4f1a\u63d0\u4f9b start()&#xff1a;\u5148\u5b89\u88c5\u76d1\u542c\u5668&#xff0c;\u518d\u4e3b\u52a8\u6e32\u67d3\u5f53\u524d\u5730\u5740&#xff0c;\u628a\u201c\u76d1\u542c\u672a\u6765\u53d8\u5316\u201d\u548c\u201c\u5904\u7406\u5f53\u524d\u72b6\u6001\u201d\u7edf\u4e00\u8d77\u6765\u3002<\/p>\n<h2>5. Hash \u8def\u7531\u7684\u80fd\u529b\u8fb9\u754c\u4e0e\u65b9\u6848\u9009\u62e9<\/h2>\n<h3>5.1 Hash \u8def\u7531\u4e0e History \u8def\u7531\u5bf9\u6bd4<\/h3>\n<p>\u73b0\u4ee3 SPA \u8fd8\u5e38\u7528 History API \u5b9e\u73b0\u201c\u5e72\u51c0\u8def\u5f84\u201d&#xff0c;\u4f8b\u5982\u628a #\/page1 \u5199\u6210 \/page1\u3002\u6838\u5fc3 API \u662f history.pushState()\u3001history.replaceState() \u548c popstate \u4e8b\u4ef6\u3002\u4e24\u79cd\u6a21\u5f0f\u89e3\u51b3\u7684\u662f\u540c\u4e00\u4e2a\u95ee\u9898&#xff0c;\u4f46\u90e8\u7f72\u8981\u6c42\u4e0d\u540c&#xff1a;<\/p>\n<table>\n<tr>\u5bf9\u6bd4\u9879Hash \u8def\u7531History \u8def\u7531<\/tr>\n<tbody>\n<tr>\n<td>URL \u5f62\u5f0f<\/td>\n<td>example.com\/#\/page1<\/td>\n<td>example.com\/page1<\/td>\n<\/tr>\n<tr>\n<td>\u6838\u5fc3\u76d1\u542c<\/td>\n<td>hashchange<\/td>\n<td>popstate<\/td>\n<\/tr>\n<tr>\n<td>\u4e3b\u52a8\u6539\u5730\u5740<\/td>\n<td>\u4fee\u6539 location.hash \u6216\u70b9\u51fb Hash \u94fe\u63a5<\/td>\n<td>history.pushState() \/ replaceState()<\/td>\n<\/tr>\n<tr>\n<td>\u662f\u5426\u6574\u9875\u5237\u65b0<\/td>\n<td>\u8def\u7531\u5207\u6362\u65f6\u4e0d\u4f1a<\/td>\n<td>\u6b63\u786e\u4f7f\u7528 API \u65f6\u4e0d\u4f1a<\/td>\n<\/tr>\n<tr>\n<td>\u670d\u52a1\u7aef\u914d\u7f6e<\/td>\n<td>\u901a\u5e38\u65e0\u9700\u8bc6\u522b Hash \u540e\u7684\u8def\u5f84<\/td>\n<td>\u5fc5\u987b\u628a\u524d\u7aef\u8def\u5f84\u56de\u9000\u5230 SPA \u5165\u53e3 HTML<\/td>\n<\/tr>\n<tr>\n<td>\u76f4\u63a5\u5237\u65b0\u5b50\u8def\u7531<\/td>\n<td>\u670d\u52a1\u5668\u4ecd\u6536\u5230\u5165\u53e3\u6587\u6863\u8def\u5f84&#xff0c;\u901a\u5e38\u53ef\u7528<\/td>\n<td>\u914d\u7f6e\u4e0d\u5f53\u65f6\u670d\u52a1\u5668\u53ef\u80fd\u8fd4\u56de 404<\/td>\n<\/tr>\n<tr>\n<td>URL \u7f8e\u89c2\u5ea6<\/td>\n<td>\u5e26 #<\/td>\n<td>\u66f4\u63a5\u8fd1\u666e\u901a\u7ad9\u70b9\u8def\u5f84<\/td>\n<\/tr>\n<tr>\n<td>\u9002\u7528\u573a\u666f<\/td>\n<td>\u9759\u6001\u6258\u7ba1\u3001\u6559\u5b66\u3001\u5c0f\u578b\u540e\u53f0\u3001\u90e8\u7f72\u53d7\u9650\u573a\u666f<\/td>\n<td>\u5bf9 URL \u89c4\u8303\u548c SEO \u914d\u5408\u8981\u6c42\u66f4\u9ad8\u7684\u73b0\u4ee3\u5e94\u7528<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>History \u8def\u7531\u6700\u5bb9\u6613\u8e29\u7684\u5751\u53d1\u751f\u5728\u201c\u76f4\u63a5\u5237\u65b0\u201d\u3002\u5728\u5e94\u7528\u5185\u90e8\u4ece \/ \u5207\u5230 \/page1 \u65f6&#xff0c;pushState \u53ea\u4fee\u6539\u6d4f\u89c8\u5668\u5730\u5740&#xff0c;\u4e0d\u4f1a\u8bf7\u6c42\u670d\u52a1\u5668&#xff1b;\u4f46\u7528\u6237\u5237\u65b0 \/page1 \u65f6&#xff0c;\u6d4f\u89c8\u5668\u4f1a\u771f\u7684\u5411\u670d\u52a1\u5668\u8bf7\u6c42\u8fd9\u4e2a\u8def\u5f84\u3002\u5982\u679c\u670d\u52a1\u5668\u6ca1\u6709\u628a\u5b83\u56de\u9000\u5230 index.html&#xff0c;\u5c31\u4f1a\u8fd4\u56de 404\u3002Hash \u4e0d\u4f1a\u53d1\u9001\u7ed9\u670d\u52a1\u5668&#xff0c;\u56e0\u6b64\u5929\u7136\u7ed5\u5f00\u4e86\u8fd9\u4e2a\u90e8\u7f72\u95ee\u9898\u3002<\/p>\n<p>\u8fd8\u8981\u6ce8\u610f&#xff1a;\u8c03\u7528 history.pushState() \u672c\u8eab\u4e0d\u4f1a\u89e6\u53d1 popstate&#xff0c;\u5e94\u7528\u901a\u5e38\u8981\u5728\u8c03\u7528\u540e\u4e3b\u52a8\u6e32\u67d3&#xff1b;popstate \u4e3b\u8981\u7528\u4e8e\u54cd\u5e94\u6d4f\u89c8\u5668\u524d\u8fdb\u548c\u540e\u9000\u3002\u8fd9\u4e2a\u8bbe\u8ba1\u4e0e Hash \u8def\u7531\u7684\u9996\u5c4f\u95ee\u9898\u7c7b\u4f3c\u2014\u2014\u6ce8\u518c\u4e8b\u4ef6\u76d1\u542c\u4e0d\u7b49\u4e8e\u5f53\u524d\u72b6\u6001\u5df2\u7ecf\u88ab\u5904\u7406\u3002<\/p>\n<h3>5.2 \u4ece\u624b\u5199\u8def\u7531\u5668\u5230\u6846\u67b6\u8def\u7531\u5668<\/h3>\n<p>\u5f53\u524d HashRouter \u53ea\u5b9e\u73b0\u4e86\u9759\u6001\u8def\u5f84\u7cbe\u786e\u5339\u914d&#xff0c;\u4f46\u5b83\u5df2\u7ecf\u5177\u5907\u8def\u7531\u7cfb\u7edf\u7684\u9aa8\u67b6&#xff1a;\u8def\u7531\u8868\u3001URL \u76d1\u542c\u3001\u8def\u5f84\u89e3\u6790\u3001\u5904\u7406\u5668\u5206\u53d1\u548c\u89c6\u56fe\u6e32\u67d3\u3002\u6846\u67b6\u8def\u7531\u5668\u662f\u5728\u8fd9\u4e2a\u9aa8\u67b6\u4e0a\u7ee7\u7eed\u89e3\u51b3\u590d\u6742\u4e1a\u52a1\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\/users\/:id \u8fd9\u6837\u7684\u52a8\u6001\u53c2\u6570\u9700\u8981\u8def\u5f84\u6a21\u5f0f\u89e3\u6790&#xff0c;\u800c\u4e0d\u53ea\u662f\u5b57\u7b26\u4e32\u5b8c\u5168\u76f8\u7b49\u3002<\/li>\n<li>\u7236\u5e03\u5c40\u4e0e\u5b50\u9875\u9762\u9700\u8981\u5d4c\u5957\u8def\u7531\u548c\u591a\u4e2a\u6e32\u67d3\u51fa\u53e3\u3002<\/li>\n<li>\u5927\u578b\u5e94\u7528\u9700\u8981\u6309\u8def\u7531\u62c6\u5305&#xff0c;\u901a\u8fc7\u52a8\u6001 import() \u5ef6\u8fdf\u52a0\u8f7d\u9875\u9762\u4ee3\u7801\u3002<\/li>\n<li>\u767b\u5f55\u6821\u9a8c\u3001\u6743\u9650\u5224\u65ad\u548c\u672a\u4fdd\u5b58\u8868\u5355\u63d0\u793a\u9700\u8981\u5bfc\u822a\u5b88\u536b\u3002<\/li>\n<li>\u9875\u9762\u5207\u6362\u540e\u8fd8\u8981\u5904\u7406\u6eda\u52a8\u4f4d\u7f6e\u3001\u6807\u9898\u3001\u8fc7\u6e21\u52a8\u753b\u548c\u5f02\u6b65\u7ade\u6001\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64&#xff0c;\u751f\u4ea7\u9879\u76ee\u901a\u5e38\u4e0d\u5fc5\u91cd\u65b0\u53d1\u660e\u5b8c\u6574\u8def\u7531\u5e93&#xff0c;\u4f46\u624b\u5199\u8fd9\u4e2a\u6700\u5c0f\u5b9e\u73b0\u975e\u5e38\u6709\u4ef7\u503c\u3002\u5b83\u63ed\u793a\u4e86 Vue Router\u3001React Router \u7b49\u5de5\u5177\u80cc\u540e\u7684\u7a33\u5b9a\u6a21\u578b&#xff1a;URL \u662f\u53ef\u89c2\u5bdf\u72b6\u6001&#xff0c;\u8def\u7531\u8868\u628a\u72b6\u6001\u6620\u5c04\u4e3a\u5904\u7406\u903b\u8f91&#xff0c;\u6e32\u67d3\u5c42\u518d\u628a\u5339\u914d\u7ed3\u679c\u53d8\u6210\u754c\u9762\u3002\u638c\u63e1\u8fd9\u6761\u4e3b\u7ebf\u540e&#xff0c;\u518d\u5b66\u4e60\u6846\u67b6\u63d0\u4f9b\u7684\u58f0\u660e\u5f0f\u914d\u7f6e\u5c31\u4e0d\u4f1a\u505c\u7559\u5728 API \u8bb0\u5fc6\u5c42\u9762\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<p>Hash \u6700\u521d\u7528\u4e8e\u6587\u6863\u5185\u90e8\u5b9a\u4f4d&#xff0c;\u5374\u56e0\u4e3a\u201c\u6539\u53d8 URL\u3001\u4fdd\u7559\u6d4f\u89c8\u5386\u53f2\u3001\u65e0\u9700\u91cd\u65b0\u8bf7\u6c42\u5f53\u524d\u6587\u6863\u201d\u8fd9\u51e0\u4e2a\u7279\u5f81&#xff0c;\u6210\u4e3a\u5b9e\u73b0\u524d\u7aef\u8def\u7531\u7684\u5929\u7136\u5de5\u5177\u3002\u4e00\u4e2a\u6700\u5c0f Hash \u8def\u7531\u5668\u53ea\u9700\u8981\u5b8c\u6210\u4e09\u6b65&#xff1a;\u76d1\u542c hashchange&#xff0c;\u4ece location.hash \u89e3\u6790\u8def\u5f84&#xff0c;\u518d\u4ece\u8def\u7531\u8868\u53d6\u51fa\u5904\u7406\u5668\u66f4\u65b0\u6302\u8f7d\u70b9\u3002\u4ee3\u7801\u867d\u77ed&#xff0c;\u80cc\u540e\u5374\u4e32\u8054\u4e86\u4e8b\u4ef6\u6a21\u578b\u3001this \u7ed1\u5b9a\u3001\u7c7b\u5b9e\u4f8b\u3001\u51fd\u6570\u5f15\u7528\u3001\u95ed\u5305\u3001DOM \u66f4\u65b0\u548c\u6d4f\u89c8\u5668\u4f1a\u8bdd\u5386\u53f2\u7b49\u591a\u9879 JavaScript \u57fa\u7840\u3002<\/p>\n<p>\u771f\u6b63\u53ef\u9760\u7684\u5b9e\u73b0\u8fd8\u8981\u7167\u987e\u4e8b\u4ef6\u4e4b\u5916\u7684\u72b6\u6001&#xff1a;\u9996\u6b21\u8fdb\u5165\u9875\u9762\u5e94\u4e3b\u52a8\u5339\u914d\u5f53\u524d URL&#xff0c;\u7a7a\u8def\u5f84\u9700\u8981\u9ed8\u8ba4\u9875&#xff0c;\u672a\u77e5\u8def\u5f84\u9700\u8981 404&#xff0c;\u7ed1\u5b9a\u51fd\u6570\u9700\u8981\u4fdd\u7559\u5f15\u7528\u4ee5\u4fbf\u89e3\u7ed1&#xff0c;\u4e0d\u53ef\u4fe1\u6570\u636e\u4e0d\u5e94\u76f4\u63a5\u8fdb\u5165 innerHTML\u3002Hash \u8def\u7531\u4e0e History \u8def\u7531\u7684\u6838\u5fc3\u6a21\u578b\u76f8\u540c&#xff0c;\u4e3b\u8981\u5dee\u5f02\u5728 URL \u5f62\u5f0f\u548c\u670d\u52a1\u7aef\u56de\u9000\u8981\u6c42\u3002\u7406\u89e3\u8fd9\u4e9b\u5e95\u5c42\u673a\u5236\u540e&#xff0c;\u65e0\u8bba\u4f7f\u7528\u539f\u751f JavaScript \u8fd8\u662f\u6846\u67b6\u8def\u7531\u5668&#xff0c;\u90fd\u80fd\u66f4\u51c6\u786e\u5730\u5224\u65ad\u8def\u7531\u4e3a\u4ec0\u4e48\u66f4\u65b0\u3001\u4e3a\u4ec0\u4e48\u5931\u6548&#xff0c;\u4ee5\u53ca\u5e94\u8be5\u4ece URL\u3001\u76d1\u542c\u3001\u5339\u914d\u8fd8\u662f\u6e32\u67d3\u54ea\u4e00\u5c42\u5f00\u59cb\u6392\u67e5\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ece\u9875\u9762\u8df3\u8f6c\u5230\u624b\u5199 SPA&#xff1a;\u6df1\u5165\u7406\u89e3 Hash \u8def\u7531\u4e0e\u6d4f\u89c8\u5668\u5386\u53f2\u524d\u8a001. \u4ece\u591a\u9875\u9762\u5e94\u7528\u5230\u5355\u9875\u5e94\u75281.1 \u4e00\u6b21\u4f20\u7edf\u9875\u9762\u8df3\u8f6c\u53d1\u751f\u4e86\u4ec0\u4e481.2 SPA \u4e3a\u4ec0\u4e48\u9700\u8981\u524d\u7aef\u8def\u75312. \u7406\u89e3 URL\u3001Hash \u4e0e\u6d4f\u89c8\u5386\u53f22.1 Hash \u662f URL \u4e2d\u7684\u54ea\u4e00\u90e8\u52062.2 \u951a\u70b9\u5b9e\u9a8c&#xff1a;\u5148\u770b\u89c1 Hash \u5982\u4f55\u53d8\u53163. \u624b\u5199 HashRouter&#xff1a;\u9010\u5757\u62c6\u89e3\u6838\u5fc3\u4ee3\u78013.1 \u9875\u9762\u9aa8\u67b6&#xff1a;\u8def\u7531\u5165\u53e3\u4e0e\u89c6\u56fe\u6302\u8f7d\u70b93.2 \u8def\u7531\u8868&#xff1a;\u4e3a\u4ec0\u4e48\u7528\u5bf9\u8c61\u4fdd\u5b58\u56de<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[10337],"topic":[],"class_list":["post-90778","post","type-post","status-publish","format-standard","hentry","category-server","tag-10337"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ 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\u4ece\u591a\u9875\u9762\u5e94\u7528\u5230\u5355\u9875\u5e94\u75281.1 \u4e00\u6b21\u4f20\u7edf\u9875\u9762\u8df3\u8f6c\u53d1\u751f\u4e86\u4ec0\u4e481.2 SPA \u4e3a\u4ec0\u4e48\u9700\u8981\u524d\u7aef\u8def\u75312. \u7406\u89e3 URL\u3001Hash \u4e0e\u6d4f\u89c8\u5386\u53f22.1 Hash \u662f URL \u4e2d\u7684\u54ea\u4e00\u90e8\u52062.2 \u951a\u70b9\u5b9e\u9a8c&#xff1a;\u5148\u770b\u89c1 Hash \u5982\u4f55\u53d8\u53163. \u624b\u5199 HashRouter&#xff1a;\u9010\u5757\u62c6\u89e3\u6838\u5fc3\u4ee3\u78013.1 \u9875\u9762\u9aa8\u67b6&#xff1a;\u8def\u7531\u5165\u53e3\u4e0e\u89c6\u56fe\u6302\u8f7d\u70b93.2 \u8def\u7531\u8868&#xff1a;\u4e3a\u4ec0\u4e48\u7528\u5bf9\u8c61\u4fdd\u5b58\u56de\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/90778.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-05T15:56:54+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta 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