class Computer:
    """电脑"""
    # __slots__ = ('_name', 'mem', 'cpu')
    def __init__(self, name, mem, cpu):
        self._name = name
        self.mem = mem
        self.cpu = cpu

    @property
    def name(self): # 只读， getter方法
        return self._name

    def play(self, game='qq游戏'):
        print('play', game)
pc2 = Computer('admin', '8G', 8)
pc2.name   # name()函数变成属性了，
'admin'
pc2.name = 1  # 不能修改属性
---------------------------------------------------------------------------

AttributeError                            Traceback (most recent call last)

 in ()
----> 1 pc2.name = 1

AttributeError: can't set attribute
pc2.name()  # 加了@property，不能调用name()函数了
---------------------------------------------------------------------------

TypeError                                 Traceback (most recent call last)

 in ()
----> 1 pc2.name()

TypeError: 'str' object is not callable