【原创】as3中for与while的性能比较
闲话不说,直接上代码
var start:Number = getTimer();var j:int = 0;for(var i:int=0;i < 10000000;i++){j++;}var t1:Number = getTimer() - start;trace(t1);start = getTimer();while(j > 0){j--;}var t2:Number = getTimer() - start;trace(t2);start = getTimer();while(j < 10000000){j++;}var t3:Number = getTimer() - start;trace(t3);运行结果:
601
591
595
可见在速度上:倒序while >升序while >for