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分享父母的班级遗产
原标题:Multiple inheritance from classes sharing a parent

是否可以继承父母共有的多个阶层?

class A:
    def __init__(self, a1, a2= a2 ):
        self.a1=a1
        self.a2=a2
        
    def report(self):
        print( here are my attrs:  , self.a1, self.a2)

class B(A):
    def __init__(self, b, *args, **kwargs):
        self.b=b
        A.__init__(self, *args, **kwargs)


class C(A):
    def __init__(self, *args, c= c , **kwargs):
        self.c=c
        A.__init__(self, *args, **kwargs)

class D(B, C):
    def __init__(self, *args, d= d , **kwargs):
        self.d=d
        super().__init__(self, *args, **kwargs)

If I try the above example I get: TypeError: __init__() got multiple values for argument

之所以出现这一问题,是因为:*args **kwargssuper(<>>正在解决婚姻和家庭关系法时相互重复。

For context, I am trying to create a class that inherits methods and attributes from two other classes that share a parent.   If this is possible, how do you reconcile the different classes __init__ constructor?

问题回答

口译人员对<条码>b具有多重价值的论点提出抱怨的原因是,在<条码>上,将<条码>B.__init_<>>>>改为“条码>,同时附上与<条码/代码>对应的立场论据和<条码>b>的关键词。

super().__init__(self, *args, **kwargs)

当你通过<代码>super()使用某种方法时,<代码>自封作为你方法的第一个论据以默示方式通过<代码>自。 实际成为下一个立场论点:b

页: 1 页: 1 并请注意,在<条码>B.__init__和<条码>上,请上<条码>>>>>,代之以合作方式将电话传送至<条码>_init__。 卫生部的方法:

class A:
    def __init__(self, a1, a2= a2 ):
        self.a1 = a1
        self.a2 = a2

    def report(self):
        print( here are my attrs: , self.a1, self.a2)


class B(A):
    def __init__(self, b, *args, **kwargs):
        print(kwargs)
        self.b = b
        super().__init__(*args, **kwargs)


class C(A):
    def __init__(self, *args, c= c , **kwargs):
        print(kwargs)
        self.c = c
        super().__init__(*args, **kwargs)


class D(B, C):
    def __init__(self, *args, d= d , **kwargs):
        print(kwargs)
        self.d = d
        super().__init__(*args, **kwargs)

D(a1=0, a2=1, b=2, c=3, d=4).report()

产出:

{ a1 : 0,  a2 : 1,  b : 2,  c : 3}
{ a1 : 0,  a2 : 1,  c : 3}
{ a1 : 0,  a2 : 1}
here are my attrs: 0 1




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