精灵事件简单例子

 无法插入flash.

Save as EventDemo.as

 1 package 
 2 {
 3     import flash.events.MouseEvent;
 4     import flash.display.Sprite;
 5 
 6     public class EventDemo extends Sprite
 7     {
 8         private var eventSprite:Sprite;
 9         public function EventDemo ()
10         {
11             Init ();
12         }
13         private function Init ():void
14         {
15             eventSprite=new Sprite ();
16             addChild(eventSprite);
17             
18             eventSprite.graphics.beginFill(0xff0000);
19             eventSprite.graphics.drawCircle(0,0,50);
20             eventSprite.graphics.endFill();
21             
22             eventSprite.x=stage.stageWidth/2;
23             eventSprite.y=stage.stageHeight/2;
24             
25             eventSprite.addEventListener(MouseEvent.MOUSE_DOWN,MouseDown);
26             eventSprite.addEventListener(MouseEvent.MOUSE_UP,MouseUp);
27         }
28         private function MouseDown(e:MouseEvent):void
29         {
30             trace( "Mouse Down!" );
31         }
32         private function MouseUp(e:MouseEvent):void
33         {
34             trace( "Mouse Up!" );
35         }
36     }
37 }