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cnnlion

2016-09-20

源自：python进阶 2-4

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2 回答

美丽美丽
2016-09-20

class Person(object):

__count = 0

@classmethod
def how_many(cls):
return cls.__count
def __init__(self,name):
self.name = name
Person.__count = Person.__count + 1

print Person.how_many()

p1 = Person('Bob')

print Person.how_many()

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慕先生3428476
2016-09-20

class Person(object):

    __count = 0

    @classmethod
    def how_many(cls):
        return cls.__count
    def __init__(self, name):
        self.name = name
        Person.__count = Person.__count + 1

print Person.how_many()

p1 = Person('Bob')

print Person.how_many()