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<!DOCTYPE html>
<html>
<head>
<title>ExtJs</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<link rel="stylesheet" type="text/css" href="ExtJs/packages/ext-theme-crisp/build/resources/ext-theme-crisp-all.css">
<script type="text/javascript" src="ExtJs/ext-all.js"></script>
<script type="text/javascript" src="ExtJs/bootstrap.js"></script>
<script type="text/javascript" src="ExtJs/packages/ext-theme-crisp/build/ext-theme-crisp.js"></script>
<script type="text/javascript">
Ext.onReady(function(){
var panel = new Ext.Panel({
title: 'SAMPLE',
renderTo: 'sub1',
id: 'panel1',
width: '300px',
html: "<div id='div1' property1='pro1' style='height:200px;padding:5px;font-size:11pt;font-family:Arial'>" +
"</div>"
});
var comp = Ext.getDom('panel1');
Ext.Msg.alert("notice","我们已经实例化的Panel是否为空？"+Ext.isEmpty(panel) +
"<br>Ext.isEmpty(' ', true)的值：" +
Ext.isEmpty("", true) +
"<br>Ext.isEmpty(' ', false)的值是" + Ext.isEmpty("", false));
});
</script>
</head>
<body>
<div id=sub1></div>
</body>
</html>
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