auto save

snake.py

 import pygame
-
+from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
-
-# 创建一个窗口
-??
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+apple=pygame.image.load('apple.png')
+bg=pygame.image.load('bg.png')
+body=pygame.image.load(body.png)
+left=pygame.image.load(left.png)
+qwa=pygame.display.set_mode((800,600))
+while True:
+    for event in pygame.event.get():
+            if event.type == locals.QUIT:
+                exit()
+    screen.blit(backg)            
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