指定要用于多重继承的父类

class A:
    def method(self):
        print("A")

class B(A):
    pass

class C(A):
    def method(self):
        print("C")

class D(B, C):
    pass

d = D()
d.method()  # 输出 "A"，因为Python使用C3线性化算法解决钻石问题

from abc import ABC, abstractmethod

class InterfaceA(ABC):
    @abstractmethod
    def method_a(self):
        pass

class InterfaceB(ABC):
    @abstractmethod
    def method_b(self):
        pass

class ImplementationA(InterfaceA):
    def method_a(self):
        print("Method A")

class ImplementationB(InterfaceB):
    def method_b(self):
        print("Method B")

class CombinedClass(ImplementationA, ImplementationB):
    def combined_method(self):
        self.method_a()
        self.method_b()

obj = CombinedClass()
obj.combined_method()  # 输出 "Method A" 和 "Method B"