我们开发ext，最主要的文件或者文件夹是以下几个，我们将它们加在项目中即可。
文件夹
resources
文件
ext-base.js
ext-base.js
ext-lang-zh_CN.js
<html>
<head>
<link rel="stylesheet" type="text/css" href="script/resources/css/ext-all.css"></link>
<script type="text/javascript" src="script/ext-base.js"></script>
<script type="text/javascript" src="script/ext-all.js"></script>
<script type="text/javascript" src="script/ext-lang-zh_CN.js"></script>
<script type="text/javascript">
Ext.onReady(function(){
Ext.Msg.alert("系统提示","Hello World");
});
</script>
</head>
............................................
</html>
