<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="https://www.jb51.net/" />
<title>脚本之家</title>
<script type="text/javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$(":image").width(100);
});
});
</script>
</head>
<body>
<ul>
<li><input type="image" src="mytest/div+css/border.jpg" /></li>
</ul>
<button>点击查看效果</button>
</body>
</html>