1. 基础折叠
展示如下：
<body>
<div class="container">
<!-- 按钮 -->
<button class="btn btn-default" data-toggle="collapse" data-target="#shows">按钮</button>
<!-- 折叠内容 -->
<div id="shows" class="collapse">
<div class="well">
我是折叠的内容
</div>
</div>
</div>
</body>
2. 折叠一组
<body>
<div class="container">
<!-- 折叠组 -->
<div class="panel-group">
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo">栏目管理</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse panel-collapse" id="chanel_demo"><!-- 添加一个collapse类会默认隐藏折叠内容 -->
<div class="panel-body">
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >增加文章</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >增加标题</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</body>
3.折叠多组
<body>
<div class="container">
<!-- 折叠组 -->
<div class="panel-group">
<!-- 第一个功能 -->
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo1">第一个折叠标题</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse in panel-collapse" id="chanel_demo1"><!-- 添加一个collapse类会默认隐藏折叠内容 -->
<div class="panel-body">
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容一</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容二</a></li>
</ul>
</div>
</div>
</div>
<!-- 第二个功能 -->
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo2">第二个折叠标题</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse panel-collapse" id="chanel_demo2">
<div class="panel-body">
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容一</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容二</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</body>
4. 折叠多组 只显示一组折叠内容
<body>
<div class="container">
<!-- 折叠组 -->
<div class="panel-group" id="panelcontainer">
<!-- 第一个功能 -->
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo1" data-parent="#panelcontainer">第一个折叠标题</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse in panel-collapse" id="chanel_demo1"><!-- 添加一个collapse类会默认隐藏折叠内容 -->
<div class="panel-body">
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容一</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容二</a></li>
</ul>
</div>
</div>
</div>
<!-- 第二个功能 -->
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo2" data-parent="#panelcontainer">第二个折叠标题</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse panel-collapse" id="chanel_demo2">
<div class="panel-body">
<ul>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容一</a></li>
<li><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容二</a></li>
</ul>
</div>
</div>
</div>
</div>
</div>
</body>
5. 折叠–下拉菜单
<body>
<div class="container">
<!-- 折叠组 -->
<div class="panel-group">
<!-- 第一个功能 -->
<div class="panel panel-default">
<!-- 折叠panel头部 -->
<div class="panel-heading">
<h5 class="panel-title">
<a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" data-toggle="collapse" data-target="#chanel_demo1">第一个折叠标题</a>
</h5>
</div>
<!-- 折叠panel内容 -->
<div class="collapse in panel-collapse" id="chanel_demo1">
<ul class="list-group">
<li class="list-group-item"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容一</a></li>
<li class="list-group-item"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容二</a></li>
<li class="list-group-item"><a href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >折叠内容三</a></li>
</ul>
</div>
</div>
</div>
</div>
</body>
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