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				@@ -26,95 +26,89 @@ 
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				   <meta name="msapplication-tap-highlight" content="no" /> 
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				   <meta name="referrer" content="no-referrer" /> 
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				   <title>老师端</title> 
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				-  <script type="module" crossorigin src="./assets/index-2d47a39b.js"></script> 
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				-  <link rel="stylesheet" href="./assets/index-636b0edf.css"> 
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				-  <script type="module">import.meta.url;import("_").catch(()=>1);async function* g(){};if(location.protocol!="file:"){window.__vite_is_modern_browser=true}</script> 
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				-  <script type="module">!function(){if(window.__vite_is_modern_browser)return;console.warn("vite: loading legacy chunks, syntax error above and the same error below should be ignored");var e=document.getElementById("vite-legacy-polyfill"),n=document.createElement("script");n.src=e.src,n.onload=function(){System.import(document.getElementById('vite-legacy-entry').getAttribute('data-src'))},document.body.appendChild(n)}();</script> 
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				-</head> 
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				-<style> 
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				-  body { 
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				-    background: #f1f5ff; 
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				-    width: 100%; 
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				-  } 
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				- 
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				-  .bgImg { 
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				-    width: 23.75vw; 
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				-  } 
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				- 
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				-  .btnImg { 
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				-    width: 15vw; 
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				-    position: absolute; 
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				-    left: 50%; 
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				-    margin-left: -7.5vw; 
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				-    bottom: 1.61458vw; 
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				-    cursor: pointer; 
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				-  } 
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				- 
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				-  /* .imgWrap { 
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				-    width: 456px; 
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				-    position: absolute; 
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				-    top: 141px; 
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				-    left: 50%; 
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				-    margin-left: -288px; 
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				-  } */ 
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				- 
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				-  .imgWrap { 
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				-    margin-top: 15.625vw; 
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				-    text-align: center; 
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				-    /* width: 456px; 
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				-        position: absolute; 
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				-        top: 141px; 
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				-        left: 50%; 
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				-        margin-left: -288px;*/ 
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				-  } 
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				- 
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				-  .subMsg { 
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				-    margin-top: 1.66667vw; 
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				-    font-size: 1.14583vw; 
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				-    line-height: 1.5625vw; 
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				-    color: #777; 
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				-  } 
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				- 
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				-  .subBtn { 
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				-    width: 12.03125vw; 
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				-    height: 3.22917vw; 
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				-    background: #198CFE; 
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				-    border-radius: 0.9375vw; 
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				-    border: none; 
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				-    font-size: 1.14583vw; 
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				-    font-family: PingFangSC-Semibold, PingFang SC; 
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				-    font-weight: 600; 
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				-    color: #FFFFFF; 
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				-    line-height: 1.5625vw; 
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				-    cursor: pointer; 
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				-    margin-top: 1.66667vw; 
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				-    list-style: none outside none; 
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				-    text-decoration: none; 
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				-  } 
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				-</style> 
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				-<!-- 按钮 https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699779209.png --> 
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				-<!-- 背景 https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699993534.png --> 
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				+  <style> 
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				+    body { 
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				+      background: #f1f5ff; 
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				+      width: 100%; 
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				+    } 
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				-<body class="myBody"> 
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				+    .bgImg { 
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				+      width: 456Px; 
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				+      height: 522Px; 
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				+    } 
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				+ 
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				+    .btnImg { 
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				+      width: 288Px; 
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				+      position: absolute; 
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				+      left: 50%; 
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				+      margin-left: -144Px; 
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				+      bottom: 31Px; 
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				+      cursor: pointer; 
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				+      z-index: 100; 
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				+ 
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				+    } 
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				+ 
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				+    .imgWrap { 
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				+      width: 456Px; 
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				+      height: 522Px; 
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				+      margin: 140Px auto 0; 
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				+      position: relative; 
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				+      z-index: 100; 
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				+    } 
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				+ 
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				+    /* margin-top: 300px; */ 
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				+    .textWrap { 
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				+      margin-top: 140Px; 
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				+      text-align: center; 
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				+      width: 500Px; 
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				+      position: absolute; 
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				+      top: 141Px; 
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				+      left: 50%; 
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				+      margin-left: -288Px; 
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				+    } 
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				+ 
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				+    .subMsg { 
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				+      margin-top: 32Px; 
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				+      font-size: 22Px; 
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				+      line-height: 30Px; 
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				+      color: #777; 
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				+    } 
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				+ 
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				+    .subBtn { 
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				+      width: 231Px; 
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				+      height: 62Px; 
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				+      background: #198CFE; 
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				+      border-radius: 18Px; 
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				+      border: none; 
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				+      font-size: 22Px; 
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				+      font-weight: 600; 
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				+      color: #FFFFFF; 
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				+      line-height: 30Px; 
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				+      cursor: pointer; 
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				+      margin-top: 32Px; 
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				+      list-style: none outside none; 
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				+      text-decoration: none; 
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				+    } 
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				+  </style> 
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				   <script type="text/javascript"> 
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				     function gotoLinlk() { 
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				       console.log('点击') 
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				       var agent = navigator.userAgent.toLowerCase(); 
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				       var isMac = function () { return /macintosh|mac os x/i.test(navigator.userAgent); }(); 
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				       if (agent.indexOf("win32") >= 0 || agent.indexOf("wow32") >= 0) { 
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				-        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/ChromeStandaloneSetup32.exe') 
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				+        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/ChromeStandaloneSetup32.exe'); 
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				       } 
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				       if (agent.indexOf("win64") >= 0 || agent.indexOf("wow64") >= 0) { 
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				-        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/ChromeStandaloneSetup64.exe') 
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				+        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/ChromeStandaloneSetup64.exe'); 
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				       } 
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				       if (isMac) { 
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				-        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/googlechrome-mac.dmg') 
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				+        window.open('https://appstore.ks3-cn-beijing.ksyuncs.com/googlechrome-mac.dmg'); 
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				       } 
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				     } 
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				     function getChromeVersion() { 
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				       var arr = navigator.userAgent.split(' '); 
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				       var chromeVersion = ''; 
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				-      for (let i = 0; i < arr.length; i++) { 
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				+      for (var i = 0; i < arr.length; i++) { 
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				         if (/chrome/i.test(arr[i])) chromeVersion = arr[i]; 
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				       } 
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				       if (chromeVersion) { 
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				@@ -188,19 +182,20 @@ 
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				       if (!isChrome()) { 
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				         // document.writeln("<div class='imgWrap'><img src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699993534.png' class='bgImg' alt=''><img src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699779209.png' class='btnImg' alt=''></div>"); 
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				-        document.writeln(" <div class='imgWrap'><h1>当前浏览器版本过低</h1><p class='subMsg'>为了保证良好的上课体验,推荐您使用谷歌浏览器</p> <button class='subBtn' onclick='gotoLinlk()'>下载谷歌浏览器</button>"); 
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				-        document.execCommand("Stop"); 
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				-        // if (IsFF()) { 
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				-        //   window.stop() 
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				-        // } else { 
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				-        //   document.execCommand("Stop"); 
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				-        // } 
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				+ 
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				+        if (IEVersion() < 9 && IEVersion() != -1) { 
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				+ 
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				+          document.writeln(" <div class='textWrap'><h1>当前浏览器版本过低</h1><p class='subMsg'>为了保证良好的上课体验,推荐您使用谷歌浏览器</p> <button class='subBtn' onclick='gotoLinlk()'>下载谷歌浏览器</button>"); 
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				+          document.execCommand("Stop"); 
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				+        } else { 
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				+          document.writeln(" <div class='imgWrap'><img onabort='this.src=this.src' src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699993534.png' class='bgImg' alt=''><img src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699779209.png'  onabort='this.src=this.src' onclick='gotoLinlk()' class='btnImg' alt=''></div>"); 
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				+          document.execCommand("Stop"); 
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				+        } 
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				       } else { 
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				-        console.log(getChromeVersion(), 'getChromeVersion') 
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				         if (getChromeVersion() < 90) { 
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				-          document.writeln(" <div class='imgWrap'><h1>当前浏览器版本过低</h1><p class='subMsg'>为了保证良好的上课体验,推荐您使用谷歌浏览器</p> <button class='subBtn' onclick='gotoLinlk()'>下载谷歌浏览器</button>"); 
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				+          document.writeln(" <div class='imgWrap'><img src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699993534.png' class='bgImg' alt=''><img src='https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699779209.png' onclick='gotoLinlk()' class='btnImg' alt=''></div>"); 
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				           document.execCommand("Stop"); 
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				           window.stop() 
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				           console.log('Stop') 
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				@@ -211,6 +206,17 @@ 
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				     })(window); 
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				   </script> 
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				+  <script type="module" crossorigin src="./assets/index-2d47a39b.js"></script> 
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				+  <link rel="stylesheet" href="./assets/index-636b0edf.css"> 
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				+  <script type="module">import.meta.url;import("_").catch(()=>1);async function* g(){};if(location.protocol!="file:"){window.__vite_is_modern_browser=true}</script> 
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				+  <script type="module">!function(){if(window.__vite_is_modern_browser)return;console.warn("vite: loading legacy chunks, syntax error above and the same error below should be ignored");var e=document.getElementById("vite-legacy-polyfill"),n=document.createElement("script");n.src=e.src,n.onload=function(){System.import(document.getElementById('vite-legacy-entry').getAttribute('data-src'))},document.body.appendChild(n)}();</script> 
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				+</head> 
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				+ 
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				+<!-- 按钮 https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699779209.png --> 
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				+<!-- 背景 https://gyt.ks3-cn-beijing.ksyuncs.com/basic/1688699993534.png --> 
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				+ 
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				+<body class="myBody"> 
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				+ 
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				   <div id="app"></div> 
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