©TCP-tryPython

class Bird:
    def __init__(self):
        self.flying = True

    def birdsong(self):
        print("새소리")


class Sparrow(Bird):
    def birdsong(self):
        print("짹짹")


class Chicken(Bird):
    def __init__(self):
        self.flying = False


my_sparrow = Sparrow()
my_chicken = Chicken()

my_sparrow.birdsong()
my_chicken.birdsong()