Python消消乐小游戏，这里说self没有定义，怎么改

Question

while True: self.all_gems = [] self.gems_group = pygame.sprite.Group() for x in range(NUMGRID): self.all_gems.append([]) for y in range(NUMGRID): gem = Puzzle(img_path=random.choice(self.gem_imgs), size=(GRIDSIZE, GRIDSIZE), position=[XMARGID+x*GRIDSIZE, YMARGIN+y*GRIDSIZE-NUMGRID*GRIDSIZE], downlen=NUMGRID*GRIDSIZE) self.all_gems[x].append(gem) self.gem_group.add(gem) if self.isMatch()[0] == 0: break

Answer 1

self是代表类自身，你的代码那里定义了类，看看这段代码缩进归属那个类的