效果图如下：
代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
<title>收缩展开效果</title>
<script type="text/javascript" src="common/jquery-1.2.6.min.js"></script> //此处需要修改
<link type="text/css" rel="stylesheet" href="common/common.css" />
<style>
/* 收缩展开效果 */
.text{line-height:22px;padding:0 6px;color:#666;}
.box h1{padding-left:10px;height:22px;line-height:22px;background:#f1f1f1;font-weight:bold;}
.box{position:relative;border:1px solid #e7e7e7;}
</style>
</head>
<body>
<script type="text/javascript">
// 收缩展开效果
$(document).ready(function(){
$(".box h1").toggle(function(){
$(this).next(".text").animate({height: 'toggle', opacity: 'toggle'}, "slow");
},function(){
$(this).next(".text").animate({height: 'toggle', opacity: 'toggle'}, "slow");
});
});
</script>
<!-- 收缩展开效果 -->
<div class="box">
<h1>收缩展开效果</h1>
<div class="text">
1<br />
2<br />
3<br />
4<br />
5<br />
</div>
</div>
<br />
<div class="box">
<h1>收缩展开效果</h1>
<div class="text">
1<br />
2<br />
</div>
</div>
</body>
</html>