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為什么我的程序在啟動后不起作用?

[英]Why my program doesn't work after launch?

我想添加無盡的雲,但是我的程序不起作用,怎么了?

class Cloud(pygame.sprite.Sprite):
    def __init__(self):
        super(Cloud, self).__init__()
        self.image = clouds_jpg
        self.image.set_colorkey(WHITE1)
        self.rect = self.image.get_rect()
        self.rect.centerx = random.randint(0, WIDTH)
        self.rect.centery = random.randint(HEIGHT - 550, HEIGHT)


    def update(self):
        self.rect.move_ip(-2, 0)
        if self.rect.right <= 0:
            self.rect.left = screen.get_width() 

all_sprites = pygame.sprite.Group()
player = Player()
cloud = Cloud()
all_sprites.add(player, cloud)
...
elif event.type == ADDCLOUD:
            new_cloud = Cloud()
            cloud.add(new_cloud)
            all_sprites.add(new_cloud)

錯誤:

回溯(最后一次調用):文件“C:\Users\дом\My project\111.py”,第 117 行,在 cloud.add(new_cloud) 文件“C:\Users\дом\AppData\Local\Programs\ Python\Python36\lib\site-packages\pygame\sprite.py",第 133 行,在 add self.add(*group) TypeError: add() argument after * must be an iterable, not Cloud

cloudpygame.sprite.Sprite 您只能將pygame.sprite.Sprite object 添加到pygame.sprite_Group

clouds = pygame.sprite.Group()
elif event.type == ADDCLOUD:
    new_cloud = Cloud()
    
    # cloud.add(new_cloud)
    clouds.add(new_cloud)

    all_sprites.add(new_cloud)

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