直接上代码：
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="拆分按钮.aspx.cs" Inherits="easyui练习.拆分按钮" %>
<!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 runat="server">
<title></title>
<script src="JS/easyUI/jquery-1.7.2.min.js" type="text/javascript"></script>
<script src="JS/easyUI/jquery.easyui.min.js" type="text/javascript"></script>
<script src="JS/easyUI/locale/easyui-lang-zh_CN.js" type="text/javascript"></script>
<link href="JS/easyUI/themes/default/easyui.css" rel="stylesheet" type="text/css" />
<link href="JS/easyUI/themes/icon.css" rel="stylesheet" type="text/css" />
<script src="JS/wikmenu.js" type="text/javascript"></script>
<script src="JS/wikmain.js" type="text/javascript"></script>
<script type="text/javascript">
$(function(){
$(‘#sb‘).splitbutton({menu:‘#mm‘});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<div style="border:1px solid #ccc; background:#ddd; padding:5px; width:120px;">
<a href="javascript:void(0)" id="sb" icon="icon-edit">Edit</a>
<a href="javascript:void(0)" class=" easyui-linkbutton" plain="true" icon="icon-help"></a>
</div>
<div id="mm" style="width:150px;">
<div icon="icon-undo">Undo</div>
<div icon="icon-redo">Redo</div>
<div class="menu-sep"></div>
<div>Cut</div>
<div>Copy</div>
<div>Paste</div>
<div class="menu-sep"></div>
<div>
<span>Open</span>
<div style="width:150px;">
<div>Firefox</div>
<div>Internet Explorer</div>
<div>Select Program...</div>
<div class="menu-sep"></div>
</div>
</div>
<div icon="icon-remove">Delete</div>
<div>Select All</div>
</div>
</div>
</form>
</body>
</html>