flash As3事件传递参数几种方法

// 要传递的参数
var value:int = 100;
// 触发事件的按钮
var btn:Btn = new Btn;
btn.addEventListener(MouseEvent.CLICK,clickHandler(value));

// 返回事件处理的函数
function clickHandler(v:int):Funciton
{
   return function (e:MouseEvent):void{
                  //处理传入的参数 V
                    doSomeThing(v);
               }
}

/**
*@author:Amyflash
* @example:
* import com.JEventDelegate
  stage.addEventListener(MouseEvent.MOUSE_OVER,JEventDelegate.create(yourHandler,"t1","t2"));
  function yourHandler(e:MouseEvent,...arg) {
  trace(e)
  trace(arg)
  }
*/

package {
public class JEventDelegate {
public function JEventDelegate() {
}
public static function create(f:Function,...arg):Function {
var F:Boolean=false;
var _f:Function=function(e:*,..._arg){
   _arg=arg
if(!F){
F=true
_arg.unshift(e)
}
f.apply(null,_arg)
  };
return _f;
}
public static function toString():String {
return "Class JEventDelegate";
}
}
}

package net.smilecn{

    import flash.display.Sprite;

    import flash.events.MouseEvent;

    import net.smilecn.MyEvent;

    public class MyClass extends Sprite{

        public function MyClass(){

            addEventListener(MouseEvent.CLICK,clickHnadler);

        }

        private function clickHnadler(event:MouseEvent):void{

            dispatchEvent(new MyEvent("myClassMessage",{a:100,b:200}));

        }

    }

}

package net.smilecn{

    import flash.display.Sprite;

    import net.smilecn.MyEvent;

    import net.smilecn.MyClass;

    public class MainForm extends Sprite{

        private var myClass:MyClass;

        public function MainForm(){

            myClass = new MyClass();

            addChild(myClass);

            myClass.addEventListener("myClassMessage",myClassMessageHandler);

        }

        private function myClassMessageHandler(event:MyEvent):void{

            trace("你收到了myClass的消息:a="+event.param.a+" b="+event.param.b);

        }

    }

}