简单教程
提交运行
代码编辑器：
<!DOCTYPE htm> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <link href="https://cdn.bootcss.com/bootstrap/2.3.2/css/bootstrap.min.css" rel="stylesheet"> <style>body {margin:10px}</style> <div class="container"> <div class="row"> <div class="span5"> <div id="myCollapsibleExample"> <a href="#demo" data-toggle="collapse">点击我扩展并且再次点击我折叠</a> </div> <div id="demo" class="collapse"> Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehe. </div> </div> </div> </div> <script src="/static/lib/bootstrap/2.3.2/docs/assets/js/jquery.js"></script> <script src="/static/lib/bootstrap/2.3.2/docs/assets/js/bootstrap.min.js"></script>
运行结果：