假设我有一类Game具有属性player1，player2和Q。player1并且player2它们本身是该类的实例，该类Player也具有称为的属性Q。我想使它这样，当我实例化一个Game，它的股票其Q用的情况下，Player它是用实例化。
为了说明我的意思，请考虑以下代码：
class Game:
def __init__(self, player1, player2):
self.player1 = player1
self.player2 = player2
self.Q = {}
class Player:
def __init__(self, mark):
self.mark = mark
self.Q = {}
player1 = Player(mark="X")
player2 = Player(mark="O")
game = Game(player1, player2) # Instantiate a game with player 1 and player 2
game.Q["some key"] = "some value"
# I would like this to happen automatically
player1.Q = game.Q
player2.Q = game.Q
我希望player1andplayer2的Q变量能够自动更新，game.Q只要它发生变化即可。我怎样才能做到这一点？
按照Rawing的评论，我self.Q = self.player1.Q = self.player2.Q = {}在中使用__init__了Game：
class Game:
def __init__(self, player1, player2):
self.player1 = player1
self.player2 = player2
self.Q = self.player1.Q = self.player2.Q = {}
class Player:
def __init__(self, mark):
self.mark = mark
self.Q = {}
player1 = Player(mark="X")
player2 = Player(mark="O")
game = Game(player1, player2) # Instantiate a game with player 1 and player 2
game.Q["some key"] = "some value"
结果，player1.Q现在{'some key': 'some value'}无需手动“更新”即可产生收益。
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