aliens.py 文件源码

def __init__(self):
        pygame.sprite.Sprite.__init__(self)
        self.font = pygame.font.Font(None, 20)
        self.font.set_italic(1)
        self.color = Color('white')
        self.lastscore = -1
        self.update()
        self.rect = self.image.get_rect().move(10, 450)