day07 __init___ 酒店

编写酒店类
1.  用于计算住宿开销
2.  酒店有会员卡可以打九折

3.  每天早餐15元
4.  根据住宿天数返加总费用

class Hotel:
    def __init__(self, price=200, cutoff=1.0, br=15):
        self.price = price
        self.cutoff = cutoff
        self.br = br

    def calc(self, days=1):
        return (self.price * self.cutoff + self.br) * days

if __name__ == '__main__':
    stdroom = Hotel()
    bigbed = Hotel(220, 0.9)
    print(stdroom.calc())
    print(stdroom.calc(2))
    print(bigbed.calc())
    print(bigbed.calc(2))