在线运行代码 - 代码学院 www.codexy.cn

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>菜单部件（Menu Widget）演示</title>
  <link rel="stylesheet" href="//apps.bdimg.com/libs/jqueryui/1.10.4/css/jquery-ui.min.css">
  <style>
  .ui-menu {
    width: 200px;
  }
  </style>
  <script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
  <script src="//apps.bdimg.com/libs/jqueryui/1.10.4/jquery-ui.min.js"></script>
</head>
<body>
 
<ul id="menu">
  <li><a href="#">Item 1</a></li>
  <li><a href="#">Item 2</a></li>
  <li><a href="#">Item 3</a>
    <ul>
      <li><a href="#">Item 3-1</a></li>
      <li><a href="#">Item 3-2</a></li>
      <li><a href="#">Item 3-3</a></li>
      <li><a href="#">Item 3-4</a></li>
      <li><a href="#">Item 3-5</a></li>
    </ul>
  </li>
  <li><a href="#">Item 4</a></li>
  <li><a href="#">Item 5</a></li>
</ul>
 
<script>
$( "#menu" ).menu();
</script>
 
</body>
</html>
源代码

动行结果
