auto save

snake.py

@@ -10,6 +10,7 @@ screen = pygame.display.set_mode((660, 480))
 # 背景
 background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
+
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 CLOCK = pygame.time.Clock()