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V2EX  ›  Python

Python 如何自定义 classmethod 的 cls 参数?

  •  
  •   CSM ·
    cshuaimin · Jun 13, 2019 · 2622 views
    This topic created in 2521 days ago, the information mentioned may be changed or developed.

    假设有个类:

    class MyClass:
        def m(self):
            print(self)
        
        @classmethod
        def c(cls):
            print(cls)
    

    它的 self 参数是可以自定义的,只要从类上而不是实例上调用方法,就可以传入 self:

    MyClass.m('hi')
    

    但是 classmethod 怎么写才能把 cls 改掉呢?

    2 replies    2019-06-13 18:26:54 +08:00
    matrix1010
        1
    matrix1010  
       Jun 13, 2019 via Android
    MyClass.m.__func__('hi')
    CSM
        2
    CSM  
    OP
       Jun 13, 2019
    @matrix1010 #1 非常感谢,成功了。( m -> c)
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