Flex中如何给一个按钮添加链接，点击链接打开一个网页呢？

Flex中如何给一个按钮添加链接，点击链接打开一个网页呢？
可以用 navigateToURL 或者 htmlText 实现，请看下面的例子

<?xml version="1.0" encoding="utf-8"?>        
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" creationComplete="initApp()"        
layout="absolute" width="278" height="244">        
<mx:Script>        
     <![CDATA[        
            
         internal function initApp():void{        
            var str:String = "<a target='_blank' href='http://sucre.blog.51cto.com/'>paraliseinhell</a>";        
             link.htmlText = str;        
         }        
                
         internal function openUrl():void{        
             navigateToURL(new URLRequest("http://sucre.blog.51cto.com/"), "_blank");        
         }        
     ]]>        
</mx:Script>        
     <mx:Button x="72" y="117" label="paraliseinhell" fontSize="13" id="link2" click="openUrl()"/>        
     <mx:Text id="link" text="paraliseinhell" x="72" y="47" fontSize="13"/>        
</mx:Application>