[AS3]as3添加监听器处理鼠标响应事件的代码示例

为MouseEvent系列事件添加监听器和关联处理方法

package hxw 
{ 
    import flash.display.Sprite; 
    import flash.events.MouseEvent; 
     
    [SWF(width="800", height="600", backgroundColor="#869CA7", frameRate="31")] 
    public class Sample1010 extends Sprite 
    { 
        private var _sprite:Sprite; 
        public function Sample1010() 
        { 
            _sprite = new Sprite(); 
            _sprite.graphics.beginFill(0x27496E); 
            _sprite.graphics.drawRect(5,5,400,400); 
            _sprite.graphics.endFill(); 
         
            _sprite.addEventListener(MouseEvent.MOUSE_DOWN,OnMouseDown); 
            _sprite.addEventListener(MouseEvent.MOUSE_UP,OnMouseUp); 
             
            this.addChild(_sprite); 
        } 
         
        private function OnMouseDown(event:MouseEvent):void 
        { 
            _sprite.graphics.lineStyle(1,0xFFFF00,1); 
            _sprite.graphics.moveTo(mouseX,mouseY); 
            _sprite.addEventListener(MouseEvent.MOUSE_MOVE,OnMouseMove); 
        } 
         
        private function OnMouseUp(event:MouseEvent):void 
        { 
            _sprite.removeEventListener(MouseEvent.MOUSE_MOVE,OnMouseMove); 
        } 
         
        private function OnMouseMove(event:MouseEvent):void 
        {    
            _sprite.graphics.lineTo(mouseX,mouseY); 
        } 
    } 
}