<!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;'>" + "实例化了一个id为panel1的panel组件</div>" }); var comp = Ext.getCmp('panel1'); Ext.Msg.alert("notice","取得了id为panel1的组件的类型为"+comp.getXType()); }); </script> </head> <body> <div id=sub1></div> </body> </html>