Flex addEventListener传递多个参数

var sayHello:String = "欢迎光临www.FlashJ.cn -Flash,Ria技术博客";
btn1.addEventListener(MouseEvent.CLICK,function (e:MouseEvent){clickHandlerWithArg(e,sayHello)});
function clickHandlerWithArg(e:MouseEvent,arg:String):void
{
var out:String= e.target + "发出事件(有参数) :" + arg;
trace(out);
}