enter code hereclass Car():
'''一次模拟汽车的简单尝试'''
def __init__(self,make,model,year,mileage):
    '''初始化描述汽车的属性'''
    self.make = make
    self.model = model
    self.year = year
    self.updata_odometer(mileage)
    # self.odometer_reading = 0
    # self.mileages = mileage
#用于外部调动
def get_reading(self):
    return self.odometer_reading
#用于修改私有属性
def updata_odometer(self,mileage):
    if mileage >= ():# 这里调用谁?
        self.odometer_reading = mileage
    else:
        print("You can't roll back an odometer!")
def get_descriptive_name(self):
    '''返回整洁的描述性信息'''
    long_name = str(self.year + " " + self.make + " " + self.model )
    return long_name.title()

def read_odometer(self):
    '''打印一条支持汽车里程的消息'''
    print("This car has " + str(self.odometer_reading) + " miles on it.")

my_new_car = Car("audi","a4","2016",12) print(my_new_car.get_descriptive_name()) my_new_car.updata_odometer(23) my_new_car.read_odometer() my_new_car.updata_odometer(33) my_new_car.read_odometer()

my_new_car.updata_odometer(13) my_new_car.read_odometer()