【AS3代码】Keyboard键盘操作!

package
{
     import flash.display.Sprite;
     import flash.display.Stage;
     import flash.events.KeyboardEvent;
     import flash.ui.Keyboard;
     import flash.events.Event;
    
     public  class Main  extends Sprite
    {    
         private  var flag: Boolean = new  Boolean();
         public  function Main():void
        {
            stage.addEventListener(KeyboardEvent.KEY_DOWN, a);
            stage.addEventListener(KeyboardEvent.KEY_UP,b);
        }
         private  function a(evt:KeyboardEvent):void
        {
            trace("点击键盘的KEY数字代码: "+evt.keyCode);
        }
         private  function b(evt:KeyboardEvent):void
        {
            trace("弹起键盘的KEY数字代码: "+evt.keyCode);
        }
    }
    
    
}