python自定制classmethod (类方法)

Posted Mr-谢

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利用描述符和类装饰器自定义classmethod方法

class ClassMethod:
    def __init__(self,func):
        self.func = func

    def __get__(self, instance, owner):
        def deco(*args,**kwargs):
            self.func(owner,*args)
        return deco

class People:
    name = qqq
    @ClassMethod #sayHello = ClassMethod(sayHello)
    def sayHello(cls,msg):
        print("你好, %s  帅哥 %s" %(cls.name,msg))

    @classmethod
    def sayHello1(cls,msg):
        print("你好 %s  %s" %(cls.name,msg))

p1 = People()
p1.sayHello1(sadsad)
p1.sayHello(dsadwqdqw)
People.sayHello(safsaf)
People.sayHello1(sfdsfdsf)

 

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