一。普通继承

>>> class A:...     def __init__(self):...             print 'Enter A'...             print 'Leave A'... >>> class B(A):...     def __init__(self):...             print 'Enter B'...             A.__init__(self)...             print 'Leave B'... >>> class C(A):...     def __init__(self):...             print 'Enter C'...             A.__init__(self)...             print 'Leave C'... >>> class D(A):...     def __init__(self):...             print 'Enter D'...             A.__init__(self)...             print 'Leave D'... >>> class E(B,C,D):...     def __init__(self):...             print 'Enter E'...             B.__init__(self)...             C.__init__(self)...             D.__init__(self)...             print 'Leave E'...

  运行结果

>>> E()Enter EEnter BEnter ALeave ALeave BEnter CEnter ALeave ALeave CEnter DEnter ALeave ALeave DLeave E<__main__.E instance at 0x108670560>>>>

二。super继承

>>> class A(object):...     def __init__(self):...             print 'Enter A'...             print 'Leave A'... >>> class B(A):...     def __init__(self):...             print 'Enter B'...             super(B,self).__init__()...             print 'Leave B'... >>> class C(A):...     def __init__(self):...             print 'Enter C'...             super(C,self).__init__()...             print 'Leave C'... >>> class D(A):...     def __init__(self):...             print 'Enter D'...             super(D,self).__init__()...             print 'Leave D'... >>> class E(B,C,D):...     def __init__(self):...             print 'Enter E'...             super(E,self).__init__()...             print 'Leave E'...

 运行结果

>>> E()Enter EEnter BEnter CEnter DEnter ALeave ALeave DLeave CLeave BLeave E<__main__.E object at 0x10513bc10>

三。结论

   除了代码简化了外，明白两者调用父类的次数和调用的顺序，其他不深入探讨.