<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<meta name="author" content="http://www.jb200.com/" />
<title>plc学堂 - www.plcxue.com</title>
<style type="text/css">
div{
width:100px;
height:100px;
border:1px solid blue;
}
p{
width:150px;
height:150px;
border:1px solid red;
}
</style>
<script type="text/
javascript" src="mytest/jQuery/jquery-1.8.3.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("button").click(function(){
$("p").replaceWith("<div>我是div元素</div>");
});
});
</script>
</head>
<body>
<p>我是p元素</p>
<p>我是p元素</p>
<p>我是p元素</p>
<button>用div包裹每个段落</button>
</body>
</html>
