404.html


<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
  <title>404</title>
  <style>
    * {
      padding: 0;
      margin: 0;
    }

    body {
      background: #fff;
      color: #333;
      font-size: 16px;
    }

    .system-message {
      padding: 24px 48px;
    }

    .system-message h1 {
      font-size: 100px;
      font-weight: normal;
      line-height: 120px;
      margin-bottom: 12px;
    }

    .system-message .jump {
      padding-top: 10px
    }

    .system-message .jump a {
      color: #333;
    }

    .system-message .error {
      line-height: 1.8em;
      font-size: 36px
    }

    .system-message .detail {
      font-size: 12px;
      line-height: 20px;
      margin-top: 12px;
      display: none
    }
  </style>
</head>
<body>
<div class="system-message">
  <h1>:(</h1>
  <p class="error">404 错误 !</p>
  <p class="detail"></p>
  <p class="jump">
    您访问的页面不存在 还有 <b id="wait">5</b>s 自动返回 [ <a href="javascript:goBack();">上一页</a> ]
  </p>
  <p class="jump">
    [ <a href="javascript:goHome();">首页传送门</a> ]
  </p>
  <br/>
</div>
<script type="text/javascript">

  function goHome() {
    window.open("/", "_self");
  }

  function goBack() {
    if (window.history.length === 1) {
      window.open("/", "_self");
    } else {
      window.history.back();
    }
  }

  (function () {
    let wait = document.getElementById('wait');
    let interval = setInterval(function () {
      let time = --wait.innerHTML;
      // 回到上一页
      if (time < 0) {
        goBack();
        clearInterval(interval);
      }
    }, 1000);
  })();

</script>
</body>
</html>