更改列表项标记的类型 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <script>
    function displayResult() {
      document.getElementById("ul1").style.listStyleType = "square";
    }
  </script>
</head>
<body>

  <ul id="ul1">
    <li>Coffee</li>
    <li>Tea</li>
    <li>Water</li>
    <li>Soda</li>
  </ul>
  <br>
  <button type="button" onclick="displayResult()">修改列表项的标记类型</button>

</body>
</html>
        