返回 body 元素的 title属性 - 在线编辑器

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
</head>
<body id="myid" title="mytitle">

  <script>
    var x = document.getElementsByTagName('body')[0];
    document.write("Body 标题: " + x.title);
    document.write("<br>");
    document.write("另一种方法: ");
    document.write(document.getElementById('myid').title);
  </script>

</body>
</html>
​x
 
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>蜜蜂教程(mifengjc.com)</title>
</head>
<body id="myid" title="mytitle">
​
  <script>
    var x = document.getElementsByTagName('body')[0];
    document.write("Body 标题: " + x.title);
    document.write("<br>");
    document.write("另一种方法: ");
    document.write(document.getElementById('myid').title);
  </script>
​
</body>
</html>