显示当前文档与被链接文档之间的关系 - 在线编辑器

          <!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
  <link id="link1" rel="stylesheet" type="text/css" href="/examples/style1.css">
  <script>
    function displayResult() {
      var x = document.getElementById("link1").rel;
      alert(x);
    }
  </script>
</head>
<body>

  <button type="button" onclick="displayResult()">显示链接元素之间的关系</button>

</body>
</html>
        