as3 setTimeOut、setInterval、Timer 的使用方法

setTimeOut：设置超时时间，只会执行一次！

setInterval：设置一个间隔时间，间隔多久会触发一次！除非remove，否则会永久执行下去！

Timer：设置一个间隔时间，有次数限制，只执行制定次数！

参数说明：

setTimeOut(函数名,延迟时间,参数);

setInterval(函数名,延迟时间,参数);

Timer(延迟时间，执行次数);

举例：

1.setTimeOut

package {
    import flash.display.Sprite;
    import flash.utils.*;

    public class SetTimeoutExample extends Sprite {
        private var delay:Number = 1000; // delay before calling myDelayedFunction
        
        public function SetTimeoutExample() {
            var intervalId:uint = setTimeout(myDelayedFunction, delay, "Hello", "World");
        }

        public function myDelayedFunction():void {
            trace(arguments[0] + " " + arguments[1]);
        }


        public function clearTimeout():void

        {

            if(intervalId>0)

             {

                         clearTimeout(intervalId);

              }

        }
    }
}

2.setInterval

package {
    import flash.display.Sprite;
    import flash.utils.*;

    public class SetIntervalExample extends Sprite {
        private var intervalDuration:Number = 1000; // duration between intervals, in milliseconds
        private var intervalId:uint;
        private var counter:uint     = 0;
        private var stopCount:uint     = 3;
        
        public function SetIntervalExample() {
            intervalId = setInterval(myRepeatingFunction, intervalDuration, "Hello", "World");
        }

        public function myRepeatingFunction():void {
            trace(arguments[0] + " " + arguments[1]);

            counter++;
            if(counter == stopCount) {
                trace("Clearing Interval");
                clearInterval(intervalId);    
            }
        }
    }
}

3.Timer

package {
    import flash.utils.Timer;
    import flash.events.TimerEvent;
    import flash.display.Sprite;

    public class TimerExample extends Sprite {

        public function TimerExample() {
            var myTimer:Timer= new Timer(1000, 2);
            myTimer.addEventListener("Timer", timerHandler);
            myTimer.start();
        }

        public function timerHandler(event:TimerEvent):void {
            trace("timerHandler: " + event);
        }
    }
}