Python的方法解析顺序(MRO)

mro即method resolution order，主要用于在多继承时判断调的属性的路径(来自于哪个类)。

http://blog.csdn.net/imzoer/article/details/8737642

你真的理解Python中MRO算法吗？

API:

 class type(object):
     """
     type(object) -> the object's type
     type(name, bases, dict) -> a new type
     """
     def mro(self): # real signature unknown; restored from __doc__
         """
         mro() -> list
         return a type's method resolution order
         """
         return []

测试代码:

 #!/usr/bin/env python
 class A(object):
     def __init__(self):
         print "enter A"
         print("leave A")

 class B(object):
     def __init__(self):
         print "enter B"
         print "leave B"

 class C(A,B):
     def __init__(self):
         print "enter C"
         super(C, self).__init__()
         print "leave C"

 b = C()
 mo = b.__class__.mro()
 print mo

输出:

enter C
enter A
leave A
leave C
[<class '__main__.C'>, <class '__main__.A'>, <class '__main__.B'>, <type 'object'>]