<!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',
width: '300px',
html: '<div id="div1" style="height:160px;padding:5px">原文本</div>'
});
Ext.core.DomHelper.append(Ext.get("div1"), "<br>新追加了文本", true);
});
</script>
</head>
<body>
<div id=sub1></div>
</body>
</html>