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saximi
V2EX  ›  Python

请教一个运算符重载的问题

  •  
  •   saximi · Aug 9, 2017 · 1964 views
    This topic created in 3207 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!
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