python - 类 '...' 的未解析属性引用 '...'

Question

当我在 Zombie 类中调用 render() 方法时，我想将 Zombie 对象的一个​​实例添加到 ZombieList.list 中。当我尝试这样做时，它说

Unresolved attribute reference list for class ZombieList.

我应该尝试另一种方式吗？

class ZombieList:
    def __init__(self):
        self.list = []
        for zombie in self.list:
            ds.blit(zombie.image, (1000, random.randint(10, 790)))

class Zombie(object):
    def __init__(self):
        self.attack = 3
        self.speed = 5
        self.health = 30
        self.image = pygame.image.load("Assets/green zombie.png")

        self.zombieList = []

    def render(self):
        ZombieList.list.append(self)

Answer 1

您必须创建一个ZombieList 对象，您可以将Zombie 对象附加到其中。
您可以添加 Class Objects到 Zombie 类:

class Zombie(object):

    zombies = ZombieList()

    def __init__(self):
        self.attack = 3
        self.speed = 5
        self.health = 30
        self.image = pygame.image.load("Assets/green zombie.png")

    def render(self):
        Zombie.zombies.list.append(self)