[]Animation创建和销毁的问题

private var testAnim1:Animation;

		private var testAnim2:Animation;

		

		public function LayaSample() {

			//初始化引擎

			Laya.init(1136, 640,WebGL);

			

			trace("ok...");

			

			Laya.stage.on(Event.KEY_DOWN, this, this.onKeydown);

		}

		

		private function onKeydown(event:Event):void

		{

			var self:* = this;

			

			if(event.keyCode === Keyboard.SPACE)

			{

				//移除动画

				if(testAnim1)

				{

					testAnim1.clear();

					testAnim1.removeSelf();

					testAnim1 = null;

					

					testAnim2.clear();

					testAnim2.removeSelf();

					testAnim2 = null;

					

					

					Loader.clearRes("res/fish_1/stand.atlas", true);

					Loader.clearRes("res/fish_1/attack.atlas", true);

					

					trace("移除动画完成");

				}

				

				

			}

			else if(event.keyCode === Keyboard.A)

			{

				//加载动画

				Laya.loader.load(["res/fish_1/stand.atlas","res/fish_1/attack.atlas"], Handler.create(this, this.onAnimAtlasLoaded));

			}

		}

		

		private function onAnimAtlasLoaded():void

		{

			

			testAnim1 = new Animation();

			testAnim1.loadAnimation("res/fish_1/fish_1.ani");

			

			Laya.stage.addChild(testAnim1);

			testAnim1.play(0,true,"stand_" + 0);

			

			testAnim1.pos(500, 300);

			

			//------------------------------------------------------------------------------

			testAnim2 = new Animation();

			testAnim2.loadAnimation("res/fish_1/fish_1.ani");

			

			Laya.stage.addChild(testAnim2);

			testAnim2.play(0,true,"attack_" + 0);

			

			testAnim2.pos(400, 400);

			

			trace("创建动画完成");

			

		}