static void Main(string[] args)
{
Bike bike1 = new Bike();
Console.WriteLine("单车生产商:{0} 轮子数:{1} 重量:{2} 品牌:{3}",bike1.Maker,bike1.Wheelcount,bike1.Wheight ,bike1.Brand);
Car car1 = new Car();
Console.WriteLine("汽车生产商:{0} 轮子数:{1} 重量:{2} 座位数:{3}", car1.Maker, car1.Wheelcount, car1.Wheight, car1.SeatCount());
}