一，效果图。
二，源代码。
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Group DataList - jQuery EasyUI Demo</title>
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="http://www.jeasyui.com/easyui/demo.css">
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery.min.js"></script>
<script type="text/javascript" src="http://www.jeasyui.com/easyui/jquery.easyui.min.js"></script>
</head>
<body>
<h2>Group DataList</h2>
<p>This example shows how to display items in groups.</p>
<div style="margin:20px 0"></div>
<div id="#dglist" class="easyui-datalist" title="Group DataList" style="width:400px;height:250px" data-options="
method: 'get',
groupField: 'group'
">
</div>
<script type="text/javascript">
$().ready(function(){
$("#dglist").datalist({data:[
{"text":"Epson WorkForce 845","group":"Printer"},
{"text":"Canon PIXMA MG5320","group":"Printer"},
{"text":"HP Deskjet 1000 Printer","group":"Printer"},
{"text":"Cisco RV110W-A-NA-K9","group":"Firewall"},
{"text":"ZyXEL ZyWALL USG50","group":"Firewall"},
{"text":"NETGEAR FVS318","group":"Firewall"},
{"text":"Logitech Keyboard K120","group":"Keyboard"},
{"text":"Microsoft Natural Ergonomic Keyboard 4000","group":"Keyboard"},
{"text":"Logitech Wireless Touch Keyboard K400","group":"Keyboard"},
{"text":"Logitech Gaming Keyboard G110","group":"Keyboard"},
{"text":"Nikon COOLPIX L26 16.1 MP","group":"Camera"},
{"text":"Canon PowerShot A1300","group":"Camera"},
{"text":"Canon PowerShot A2300","group":"Camera"}
]
});
});
</script>
</body>
</html>