auto save

snake.py

@@ -5,7 +5,12 @@ pygame.init()
 
 # 创建一个窗口
 screen=pygame.display.set_mode((660,480))
+background=pygame.image.load('bg.png')
+right=pygame.image.load('right.png')
+food=pygame.image.load('apple.png')
+body=pygame.image.load('body.png')
 while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
         exit()
+    screen.blit
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