装饰器

@property

class Student(object):

    def get_score(self):
        return self._score

    def set_score(self, value):
        if not isinstance(value, int):
            raiseValueError('score must be an integer!')
        if value <0 or value >100:
            raise ValueError('score must between 0 ~ 100!') 
        self._score = value

s = Student()
s.set_score(60) 赋值变量
s.get_score() 取变量的值
要用两个方法操作

class Student(object):

    @property
    def score(self):
        return self._score

    @score.setter
    def score(self, value):
        if not isinstance(value, int):
            raise ValueError('score must be an integer!')
        if value < 0 or value > 100:
            raise ValueError('score must between 0 ~ 100!')
        self._score = value

s.score = 60
s.score
只需要引用一个方法就可以实现取值和赋值