python自定制classmethod （类方法）

Posted 2020-11-16 Mr-谢

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‘)