AS2 tween缓动

import mx.transitions. *;
import mx.transitions.easing. *;

stopTween.stopTween("_x");
startTween(viewMc["Masked"], "_x", null, now_x, nowIndex * pageWidth, 0.3, true);

private function startTween(taget:MovieClip,r:String, math:Function, s:Number, e:Number, t:Number, tf:Boolean){
			this["tweenDt_" + r] = new Tween(taget, r, math, s, e, t, tf);
			this["tweenDt_" + r].onMotionFinished = singleCase.createEvent(this, null, iconsMove);
		}

		private function stopTween(r:String){
			delete this["tweenDt_" + r].onMotionFinished;
			this["tweenDt_" + r].stop();
		}


/**缓动属性*/
	private static var tweenList:Array = ["_x","_y","_alpha","_xscale","_yscale","_width","_height","_rotation"];