开始把控件局限在label上,发现实现起来似乎不太现实。应该用textarea控件: 
复制代码 代码如下:
 
<?xml version="1.0" encoding="utf-8"?> 
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" 
xmlns:s="library://ns.adobe.com/flex/spark" 
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600" creationComplete="inital();"> 
<fx:Script> 
<![CDATA[ 
import flashx.textLayout.conversion.TextConverter; 
public function inital():void{ 
var str:String = "<font color='#ff0000'>123456<font color='#32CD32'>shit</font></font>"; 
txt.textFlow = TextConverter.importToFlow(str, TextConverter.TEXT_FIELD_HTML_FORMAT); 
//txtArea.text = "我是中国人我是中国人我是中国人我是中国人"; 
} 
]]> 
</fx:Script> 
<mx:Canvas x="300" y="300"> 
<s:TextArea> 
</s:TextArea> 
</mx:Canvas> 
</s:Application>