<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<script src="jquery-3.1.0.js"></script>
</head>
<body>
<ul>
<li>aaaaa</li>
<li>bbbbbbb</li>
<li>cccccc</li>
<li>ddddddddd</li>
<li>eeeeeeee</li>
</ul>
<div>
<span>111</span>
<span>2222</span>
</div>
<script>
$('ul').next().css( {
height: '20px',
backgroundColor: 'pink'
} ).end().attr( 'test', '手动加的属性' );
</script>
</body>
</html>
