auto save

snake.py

 import pygame
-form pygame import locals
+from pygame import locals
 # 初始化pygame，为使用pygame做准备
 pygame.init()
-
 # 创建一个窗口
 screen=pygame.display.set_mode((800,600))
-white True:
+while True:
     for event in pygame.event.get():
         if event.type==locals.QUIT:
-        exit()
+            exit()
 
-        screen.blit(background,(0,0))
-        screen.blit(right,(240,120))
-        screen.blit(food,(360,300))
+        #screen.blit(background,(0,0))
+        #screen.blit(right,(240,120))
+        #screen.blit(food,(360,300))
 
-        pygame.display.undate()
+        #pygame.display.undate()