<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>声明式触发手风琴</title>
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css">
<style>body {
padding: 10px;
margin: 10px
}</style>
</head>
<body>
<!--触发手风琴可以通过自定义的 data-toggle 属性来触发。其中data-toggle值设置为 collapse,data-target="#折叠区标识符"-->
<div class="panel-group" >
<div class="panel panel-accordion panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<!--定义data-parent属性,实现点击一个其中一个元素时,关闭所有的折叠区,再打开所单击的区域(如果所单击区域是展示的,则会关闭)-->
<a href="#panel1" data-toggle="collapse" data-target="#panel1" data-parent="#myAccordion">标题一</a>
</h4>
</div>
<!--在Bootstrap框架中,如果你想让内容区域不可视,只需要在 panel-collapse 样式上添加 collapse-->
<div class="panel-collapse collapse in" ><!--in初始选定状态-->
<div class="panel-body">折叠区内容</div>
</div>
</div>
<div class="panel panel-accordion panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<!--为了把标题和内容区捆绑在一起,可以通过锚链接的方法,把标题区域和面板区连在一起-->
<a href="#panel2" data-toggle="collapse" data-target="#panel2" data-parent="#myAccordion">标题二</a>
<!--a标签可以省去data-target,因为href中已经声明,button就必须使用data-target自定义标签了-->
</h4>
</div>
<div class="panel-collapse collapse" >
<div class="panel-body">折叠区内容</div>
</div>
</div>
<div class="panel panel-accordion panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a href="#panel3" data-toggle="collapse" data-target="#panel3" data-parent="#myAccordion">标题三</a>
</h4>
</div>
<div class="panel-collapse collapse" >
<div class="panel-body">折叠区内容</div>
</div>
</div>
</div>
<script src="js/jquery-1.11.3.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>