public void Attack3()
        {
            //更新图片
            Bullet bullet = new ShroomBullet(this.Street, this.Floor, Direction.DOWN);

            Map.addBullet(bullet);
        }
        public override void Attack()
        {
            //更新图片
            Bullet bullet = new ShroomBullet(this.Street, this.Floor, this.Dir);

            Map.addBullet(bullet);
        }