Home  >  Article  >  Backend Development  >  python多重继承实例

python多重继承实例

WBOY
WBOYOriginal
2016-06-06 11:19:561225browse

本文实例讲述了python多重继承用法,分享给大家供大家参考。具体实现方法如下:

1.mro.py文件如下:

#!/usr/bin/python
# Filename:mro.py
 
class P1:
  def foo(self):
    print 'called P1-foo'
 
class P2:
  def foo(self):
    print 'called P2-foo'
 
  def bar(self):
    print 'called P2-bar'
 
class C1(P1, P2):
  pass
 
class C2(P1, P2):
  def bar(self):
    print 'called C2-bar()'
 
class GC(C1, C2):
  pass

2.执行结果如下:

>>> from mro import *
>>> gc = GC()
>>> gc.foo()
called P1-foo
>>> gc.bar
<bound method GC.bar of <mro.GC instance at 0xb77be2ac>>
>>> gc.bar()
called P2-bar
>>>

3.结论:

方法解释顺序(MRO): 深度优先, 从左至右

希望本文所述对大家的Python程序设计有所帮助。

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn