<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script>
<![CDATA[
public function showImg():void
{
img.load('http://www.baidu.com/img/baidu_logo.gif');
}
]]>
</mx:Script>
<mx:Image source="http://www.baidu.com/img/baidu_logo.gif" horizontalCenter="0" verticalCenter="1" id="img" autoLoad="false" visible="true"/>
<mx:ProgressBar x="254.5" y="82" source="img"/>
<mx:Button x="300" y="36" label="显示图片" fontSize="12" click="showImg();"/>
</mx:Application>