点击一个按钮时切换样式表 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <link id="style1" rel="stylesheet" type="text/css" href="/examples/style1.css">
  <script>
    function displayResult() {
      document.getElementById("style1").href = "style2.css";
    }
  </script>
</head>
<body>

  <h1>我的网站主页</h1>
  <button type="button" onclick="displayResult()">切换样式表</button>

</body>
</html>
        