save project

snake.py

 import pygame
-background=pygame.image.load('bg.png')
 
 # 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))
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-screen.blit(background,(0,0))
-righ=pygame.image.load(right.png)
-food=pygame.image.load(apple.png)