Timer计时器

package
{
/**
 * @author zoe
 *
 */
import flash.display.Sprite;
import flash.events.TimerEvent;
import flash.text.TextField;
import flash.utils.Timer;


[SWF(width = 750,height = 600)]
public class Main extends Sprite
{
    public function Main()
    {
        init();
    }
    
    private var timer:Timer;
    private function init():void
    {
        timer = new Timer(2000,10);
        timer.addEventListener(TimerEvent.TIMER,timerHandler);
        timer.start();
    }
    
    private function timerHandler(event:TimerEvent):void
    {
//        trace(timer.currentCount);
        test();
    }
    
    private function test():void
    {
        
            
        var mc:TextField = new TextField();
        mc.text = "happy";
        mc.width = mc.textWidth +10;
        mc.height = mc.textHeight+10;
        
        mc.x = Math.random()*stage.stageWidth*0.8;
        mc.y = Math.random()*stage.stageHeight*0.8;
        addChild(mc);
        
        if(timer.currentCount >= 10)
        {
            timer.stop();
            timer.removeEventListener(TimerEvent.TIMER,timerHandler);
        }
        
        
    }
}
}