如何根据条件从不同的类继承？

class ParentA:
    def methodA(self):
        print("This is method A")

class ParentB:
    def methodB(self):
        print("This is method B")

class Child(ParentA, ParentB):
    def __init__(self, condition):
        if condition:
            ParentA.__init__(self)
        else:
            ParentB.__init__(self)

# 使用Child类
child = Child(True)
child.methodA()  # 输出：This is method A

child = Child(False)
child.methodB()  # 输出：This is method B

class ParentA:
    def methodA(self):
        print("This is method A")

class ParentB:
    def methodB(self):
        print("This is method B")

class Child:
    def __init__(self, condition):
        if condition:
            self.parent = ParentA()
        else:
            self.parent = ParentB()

    def method(self):
        if isinstance(self.parent, ParentA):
            self.parent.methodA()
        else:
            self.parent.methodB()

# 使用Child类
child = Child(True)
child.method()  # 输出：This is method A

child = Child(False)
child.method()  # 输出：This is method B