kouzie

class Car:
    brand = 'hyundai'           # 클래스변수
    def __init__(self, name):   # 생성자
        self.name = name

    def print_name(self):
        print(self.name)


class Truck(Car):
    def __init__(self, name, size):
        super().__init__(name)
        self.size = size

    def print_name(self):       # 메서드오버라이딩
        print("truck name:", self.name)

    def print_size(self):
        print(self.size)


if __name__ == '__main__':
    c1 = Car('sonata')
    print(Car.brand)    # hyundai
    c1.print_name()     # sonata

    Truck.brand = 'kia'
    t1 = Truck('bongo', 10)
    print(Truck.brand)  # kia
    t1.print_name()     # truck name: bongo
    t1.print_size()     # 10
    print(Car.brand)    # hyundai