auto save

snake.py

@@ -3,7 +3,6 @@ from pygame import locals
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK=pygame.time.Clock()
@@ -13,6 +12,9 @@ background = pygame.image.load('bg.png')
 right = pygame.image.load('right.png')
 food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
+down= pygame.image.load('down.png')
+left= pygame.image.load('left.png')
+up= pygame.image.load('up.png')
 x,y=240,120
 position=[(180, 90),(180, 120),(210, 120),(x,y)]
 while True: