auto save

snake.py

 import pygame
+from pygame
 
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 
 # 创建一个窗口
-scrreen = pygame. display.set_mode((660,480))
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+scrreen = pygame. display.set_mode((660,480))
+while ture:
+    for event in paygame.event.get():
+        if event.type == locals.QUIT:
+            exit()
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