auto save

snake.py

+import pygame
+
+# 初始化pygame，为使用pygame做准备
+pygame.init( )
+screen=pygame.display.set_mode((660,480))
+
+background=pygame.image.load('bg.png')
+right=pygame.image.load('right.png')
+food=pygame.image.load('bapple.png')
+body=pygame.image.load('body.png')
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