python实操案例练习(七)

class Instrument():
    def make_sound(self):
        pass
class Erhu(Instrument):
    def make_sound(self):
        print('二胡在演奏')
class Pinao(Instrument):
    def make_sound(self):
        print('钢琴在演奏')
class Violin(Instrument):
    def make_sound(self):
        print('小提琴在演奏')
def play(instrumet):
    instrumet.make_sound()
class Bird():
    def make_sound(self):
        print('小鸟在唱歌')
if __name__=='__main__':
    play(Erhu())
    play(Pinao())
    play(Violin())
    play(Bird('小鸟在唱歌'))

class Car(object):
    def __init__(self,type,no):
        self.type=type
        self.no=no
    def start(self):
        pass
    def stop(self):
        pass
class Taxi(Car):
    def __init__(self,type,no,company):
        super().__init__(type,no)
        self.company=company
    def start(self):
        print('乘客您好！')
        print(f'我是{self.company}出租车公司的，我的车牌号是{self.no},请问您要去哪里？')
def stop(self):
    print('目的地到了，请您付款下车，欢迎下次光临')
class FamillyCar(Car):
    def __init__(self,type,no,name):
        super().__init__(type,no)
        self.name=name

    def stop(self):
        print('目的地到了，我们去玩儿吧')
    def start(self):
        print(f'我是{self.name},我的汽车我做主')
if __name__=='__main__':
    taxi=Taxi('上海大众','京A9765','长城')
    taxi.start()
    taxi.stop()
    print('-'*30)
    familycar=FamillyCar('广汽丰田','京B88888','武大郎')
    familycar.start()
    familycar.stop()