lex
/
classroom-instruments


			
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							<!DOCTYPE html>

<html lang="zh-CN">


<head>
  <meta charset="UTF-8" />
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    content="width=device-width, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0, viewport-fit=cover">
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  <title>音乐数字课堂</title>

  <style>
    body {
      background: #f1f5ff;
      width: 100%;
    }

    .bgImg {
      width: 456px;
      height: 522px;
    }

    .btnImg {
      width: 288px;
      position: absolute;
      left: 50%;
      margin-left: -144px;
      bottom: 31px;
      cursor: pointer;
      z-index: 100;

    }

    .imgWrap {
      width: 456px;
      height: 522px;
      margin: 140px auto 0;
      position: relative;
      z-index: 100;
    }

    /* margin-top: 300px; */
    .textWrap {
      margin-top: 140px;
      text-align: center;
      width: 500px;
      position: absolute;
      top: 141px;
      left: 50%;
      margin-left: -288px;
    }

    .subMsg {
      margin-top: 32px;
      font-size: 22px;
      line-height: 30px;
      color: #777;
    }

    .subBtn {
      width: 231px;
      height: 62px;
      background: #198CFE;
      border-radius: 18px;
      border: none;
      font-size: 22px;
      font-weight: 600;
      color: #FFFFFF;
      line-height: 30px;
      cursor: pointer;
      margin-top: 32px;
      list-style: none outside none;
      text-decoration: none;
    }
  </style>
  <script type="text/javascript">
    function gotoLinlk() {
      console.log('点击')
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      var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
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      } else {
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          caches.keys().then(function (cacheNames) {
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          });
          // 尝试监听install
        }
        window.location.reload();
      }
      const isChromeError = (error) => {
        const str = error.message + '';
        const isChunkLoadFailed = str.indexOf('imported');
        if (isChunkLoadFailed != -1 && !refreshing) {
          refreshing = true;
          console.log('onError刷新isChromeError');
          sessionStorage.setItem('isRouter', 'true')
          reloadPage()
          // showModalMask.value = true;
          // router.push(to.path)

          // setTimeout(()=>{
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        }
        // console.log(error, '这是js的报错 希望可以从错误类型判断')
      }
      window.addEventListener('error', isChromeError, true)
      // if ('serviceWorker' in navigator) {
      //   // let refreshing = false
      //   let flag = caches.keys().length > 0
      //   console.log(caches.keys(), 'caches.keys()', `是否有缓存${flag}`);
      //   caches.keys().then(function (cacheNames) {
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      //     if (flag) {
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      //   });

      //   // 尝试监听install


      // }
      // let refreshing = false
      // navigator.serviceWorker.addEventListener('controllerchange', () => {
      //   console.log('controllerchange')
      //   if (refreshing) {
      //     return
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      if (!isChrome()) {
        // 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>");


        if (IEVersion() < 9 && IEVersion() != -1) {

          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>");
          document.execCommand("Stop");
        } else {
          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>");
          document.execCommand("Stop");
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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>");
          document.execCommand("Stop");
          window.stop()
          console.log('Stop')
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        // if (IsFF()) {

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  </script>
</head>

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<body class="myBody">

  <div id="app"></div>
  <script type="module" src="/src/main.ts"></script>

</body>

</html>