Flex设置LinkButton的背景色有思路有源码

<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe./mxml/2009" 
xmlns:s="library://ns.adobe./flex/spark" 
xmlns:mx="library://ns.adobe./flex/mx" 
creationComplete="initHandler(event)"> 
<s:layout> 
<s:BasicLayout/> 
</s:layout> 
<fx:Script> 
<![CDATA[ 
import mx.events.FlexEvent; 

/ 
 初始化函数 
/ 
protected function initHandler(event:FlexEvent):void 
{ 
myLinkButton.graphics.beginFill(0x00FF00); 
myLinkButton.graphics.drawRect(0,0,myLinkButton.width,myLinkButton.height); 
myLinkButton.graphics.endFill(); 
} 

]]> 
</fx:Script> 
<fx:Declarations> 
<!-- 将非可视元素（例如服务、值对象）放在此处 --> 
</fx:Declarations> 

<mx:VBox width="100%"> 
<mx:LinkButton id="myLinkButton" label="查询" x="100" y="100"/> 
</mx:VBox> 
</s:Application>