auto save

snake.py

@@ -15,13 +15,14 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
 x,y = 240,120
-
+position = [(180,90),(180,120),(210,120),(x,y)]
 while True:
     x+=30
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+    position.append(x,y)
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去