怎么实现一个Timer的loop的delay时间越来越短?

Funkyfun

loop(delay:int, caller:*, method:Function, args:Array = null, coverBefore:Boolean = true):void
delay:int在loop过程中可以修改吗？
定时重复执行。怎么实现一个Timer的loop的delay时间越来越短?

cuixueying

		public function LayaAirDemo()
		{
			Laya.init(Browser.width,Browser.height);
			Laya.stage.bgColor="#EEFFCC";
			sp=new Sprite();
			sp.graphics.drawRect(0,0,200,200,"#FF0000");
			Laya.stage.addChild(sp);
			
			Laya.timer.loop(delay,this,onLoop);
		}
		
		private function onLoop():void
		{
			delay-=50;
			sp.x+=20;
			Laya.timer.clear(this,onLoop);
			Laya.timer.loop(delay,this,onLoop);
		}