推荐学习书目
› Learn Python the Hard Way
Python Sites
› PyPI - Python Package Index
› http://diveintopython.org/toc/index.html
› Pocoo
值得关注的项目
› PyPy
› Celery
› Jinja2
› Read the Docs
› gevent
› pyenv
› virtualenv
› Stackless Python
› Beautiful Soup
› 结巴中文分词
› Green Unicorn
› Sentry
› Shovel
› Pyflakes
› pytest
Python 编程
› pep8 Checker
Styles
› PEP 8
› Google Python Style Guide
› Code Style from The Hitchhiker's Guide
saximi
V2EX  ›  Python

请教一个运算符重载的问题

  •  
  •   saximi · Aug 9, 2017 · 2141 views
    This topic created in 3335 days ago, the information mentioned may be changed or developed.
    Class C:
    data='spam'
    def __gt__(self,other):
    return self.data > other


    X=C()
    print(X>'ham')

    上面这段代码对运算符“>”进行了重载。我的问题是:当程序执行到“ X>'ham'”的时候就会调用重载后的__gt__方法,
    但是这个方法的 return 语句也用到了“>”运算,这为何不会导致再次调用__gt__方法,从而没完没了递归了呢?
    2 replies  •  2017-08-10 00:05:07 +08:00
    Morriaty
        1
    Morriaty  
       Aug 9, 2017
    因为 type(self.data) == string
    saximi
        2
    saximi  
    OP
       Aug 10, 2017
    感谢!
    About   ·   Help   ·   Advertise   ·   Blog   ·   API   ·   FAQ   ·   Privacy   ·   Solana   ·   2693 Online   Highest 6679   ·     Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 · 24ms · UTC 06:30 · PVG 14:30 · LAX 23:30 · JFK 02:30
    ♥ Do have faith in what you're doing.