装饰器property

作用:

　　将类中的函数属性伪装成数据属性

　　对象访问属性时,触发方法执行,将返回值作为本次结果.

class Teacher():
    def __init__(self,name, age):
        self.__name = name
        self.age = age
    @property   # 将方法伪装成数据属性
    def name(self):
        return self.__name
    @name.setter
    def name(self, name):
        if not isinstance(name, str):
            print('名字不是字符串')
            return
        self.__name = name
    @name.deleter
    def name(self):
        print('不让删')


# t = Teacher('TOM', 29)
# t.name
# print(t.name)
# t.name = 123  # >>>: 触发装饰器name.setter对应函数name(t,123)
# t.name = 'zero'