python classmethod,staticmethod实现
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classmethod
class my_classmethod(object): def __get__(self, obj, type=None): def wrapper(*args, **kwargs): return self.function(type, *args, **kwargs) return wrapper #更简单的写法 def __get__(self, obj, type=None): return partial(self.function, type) #partial的作用就是,把一个函数的某些参数给固定住(也就是设置默认值),返回一个新的函数 def __init__(self, function): self.function = functionclass Class2(object): @my_classmethod def get_user(cls, x): return x, "get_user"print Class2.get_user("###")#==========('###', 'get_user')
staticmethod
class my_staticmethod(object): def __get__(self, obj, type=None): def wrapper(*args, **kwargs): return self.function(*args, **kwargs) return wrapper def __init__(self, function): self.function = functionclass Class2(object): @my_staticmethod def get_user(x): return x, "get_user"print Class2.get_user("###")#==========('###', 'get_user')
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