如果子类继承自两个单独的超类，而那两个超类又继承自同一个公共基类，那么就构成了钻石继承体系。这种继承体系很像竖立的菱形，也称作菱形继承。

class Base:def __init__(self, value):print("This is Base __init__")self.value = valueclass One(Base):def __init__(self, value):print("this is One __init__")super(One, self).__init__(value)self.value *= 2class Two(Base):def __init__(self, value):print("this is Two __init__")super(Two, self).__init__(value)self.value += 3class Ways(One, Two):def __init__(self, value):super(Ways, self).__init__(value)foo = Ways(5)
print(foo.value)

输出：

this is One __init__
this is Two __init__
This is Base __init__
16

 

对比下面一个：

class Base:def __init__(self, value):print('This is Base __init__')self.value = valueclass One(Base):def __init__(self, value):print('This is One __init__')super(One, self).__init__(value * 2)class Two(Base):def __init__(self, value):print('This is Two __init__')super(Two, self).__init__(value + 3)class Ways(One, Two):def __init__(self, value):super(Ways, self).__init__(value)foo = Ways(5)
print(foo.value)

输出：

This is One __init__
This is Two __init__
This is Base __init__
13

 

参考：

　　https://blog.csdn.net/yangjiajia123456/article/details/80382583