dynamic class mycustommc extends MovieClip {
	//创建静态方法，大家可以查一查Object.registerClass()的用法
	static function register() {
		Object.registerClass("__Packages.mycustommc", mycustommc);
	}
	function mycustommc() {
		this.beginFill(0xCCCCCC, 50);
		this.lineStyle(1, 0xFF0000, 100);
		this.moveTo(0, 0);
		this.lineTo(10, 0);
		this.lineTo(10, 10);
		this.lineTo(0, 10);
		this.endFill();
	}
	function move(aX:Number, aY:Number) {
		this._x = aX;
		this._y = aY;
	}
}