改变可折叠块的图标 - JQuery UI中文在线手册

<!DOCTYPE HTML>
<html>
<head>
<link rel="stylesheet" href="Http://apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.CSS">
<script src="//apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
<script src="//apps.bdimg.com/libs/jquerymobile/1.4.2/jquery.mobile.min.js"></script>
</head>
<body>

<div data-role="page" id="pageone">
  <div data-role="header">
    <h1>可折叠块</h1>
  </div>

  <div data-role="content">
    <div data-role="collapsible" data-collapsed-icon="arrow-d" data-expanded-icon="arrow-u">
      <h1>data-collapsed-icon 规定按钮的图标。</h1>
      <p>data-expanded-icon 规定内容被展开时按钮的图标。</p>
    </div>
  </div>
  
  <div data-role="footer">
    <h1>页脚</h1>
  </div>
</div> 

</body>
</html>