<!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>
<title></title>
<!--ExtJs框架开始-->
<script type="text/javascript" src="/Ext/adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="/Ext/ext-all.js"></script>
<link rel="stylesheet" type="text/css" href="/Ext/resources/css/ext-all.css" />
<!--ExtJs框架结束-->
<script type="text/javascript">
Ext.onReady(function () {
Ext.MessageBox.alert('标题', 'Hello World!');
});
</script>
</head>
<body>
<!--
说明：
(1)Ext.onReady():ExtJS Application的入口...就相当于Java或C#的main函数.
(2)Ext.MessageBox.alert()：弹出对话框。
-->
</body>
</html>
http://www.cnblogs.com/iamlilinfeng/archive/2012/06/18/2553527.html