python 新人求大佬

wuyanzulqq

class Car:
    def __init__(self,make,model,year):
        self.make = make
        self.model= model
        self.year =year
        self.odometer_reading = 0

    def get_descriptive_name(self):
        long_name = f"{self.year} {self.make} {self.model}"
        return long_name.title()
    def read_odometer(self):
        print(f"This car has {self.odometer_reading} miles on it.")
    def update_odometer(self,mileage):
        if mileage >= self.odometer_reading:
            self.odometer_reading = mileage
        else:
            print("You can't roll back an odometer!")
        
my_new_car = Car('audi','a4','2019')
print(my_new_car.get_descriptive_name())
my_new_car.update_odometer(23)
my_new_car.read_odometer()

class Battery:
    def __init__(self,battery_size = 75):
        self.battery_size = battery_size

    def describe_battery(self):
        print(f"This car has a {self.battery_size}-kwh battery.")

        
class ElectricCar(Car):
    def __init__(self,make,model,year):
        super().__init__(make,model,year)
        self.battery = Battery()
        
my_tesla = ElectricCar('tesla','models','2019')
print(my_tesla.get_descriptive_name())
my_tesla.battery.describe_battery()

代码运行正常 子类跟父类一起打印出来的
我想问怎么只要子类 父类不要打出来

wuyanzulqq

武婵冰 发表于 2020-11-13 13:00
:time::time::time:

？？？？？