class Car(object):

    description = ['大众', '丰田', '广本', '沃尔沃', '凯迪拉克']

    def __init__(self, l, w, h, brand):

        self.L = l

        self.W = w

        self.H = h

        self.brand = brand

    def modify_des(self):

        if hasattr(self, 'description'):

            return True

        else:

            print('请输入您的车辆描述')

’

    @staticmethod

    def basic_parameters():

        print('已完成车辆基本参数信息的录入!')

    def upkeep(self):

        desc = self.brand

        if desc in Car.description:

            print('根据汽车保养的相关经验，{0}品牌的车应于5000km/次的频率进行专业性保养'.format(self.brand))

        else:

            print('非常抱歉，{0}品牌不在我们的保养范围内'.format(self.brand))

if __name__ == "__main__":

    car_1 = Car(4.2, 1.8, 1.5, '大众')

    Car.basic_parameters()

    car_1.modify_des()

    car_1.upkeep()

    car_2 = Car(4.2, 1.8, 1.5, '保时捷')

    Car.basic_parameters()

    car_2.modify_des()

    car_2.upkeep()