以下源自ExtJs的官方示例,稍加注释而已：
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>Window LayOut</title>
<link rel="stylesheet" type="text/css" href="../resources/css/ext-all.css" />
<script type="text/javascript" src="../adapter/ext/ext-base.js"></script>
<script type="text/javascript" src="../ext-all-debug.js"></script>
<style type="text/css">
.x-panel-body p {
margin:10px;
font-size:12px;
}
</style>
</head>
<body>
<script type="text/javascript">
Ext.onReady(function() {
var button = Ext.get('show-btn');
var win;
button.on('click', function() {
//创建TabPanel
var tabs = new Ext.TabPanel({
region: 'center', //border布局，将页面分成东，南，西，北，中五部分，这里表示TabPanel放在中间
margins: '3 3 3 0',
activeTab: 0,
defaults: {
autoScroll: true
},
items: [{
title: 'Bogus Tab',
html: "第一个Tab的内容."
}, {
title: 'Another Tab',
html: "我是另一个Tab"
}, {
title: 'Closable Tab',
html: "这是一个可以关闭的Tab",
closable: true
}]
});
//定义一个Panel
var nav = new Ext.Panel({
title: 'Navigation',
region: 'west', //放在西边，即左侧
split: true,
width: 200,
collapsible: true, //允许伸缩
margins: '3 0 3 3',
cmargins: '3 3 3 3'
});
//如果窗口第一次被打开时才创建
if (!win) {
win = new Ext.Window({
title: 'Layout Window',
closable: true,
width: 600,
height: 350,
border : false,
plain: true,
layout: 'border',
closeAction:'hide',
items: [nav, tabs]//把上面创建的panel和TabPanel放在window中，并采用border方式布局
});
}
win.show(button);
});
});
</script>
<input type="button" id="show-btn" value="Show Window"/>
</body>
</html>