python - 如何在 Python 3 中向子类添加参数

Question

class Wolf:
    def __init__(self, legs):
        self.legs = 4
class Dog(Wolf):
    def __init__(self, color):
        self.color = color
fido = Dog(legs = 4, color = "brown")

这会输出一条错误消息。我该如何做类似的事情，向子类添加不属于父类(super class)的参数。

Answer 1

试试这个:

class Wolf:
    def __init__(self, legs):
        self.legs = 4
class Dog(Wolf):
    def __init__(self, legs, color):
        super().__init__(legs)
        self.color = color
fido = Dog(legs=4, color="brown")