auto save

snake.py

@@ -18,6 +18,7 @@ left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
 
+
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]