auto save

snake.py

 import pygame
 from pygame import locals
+x = 240
+y = 120
+FPS = pygame.time.Clock()
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -14,14 +17,16 @@ food = pygame.image.load('apple.png')
 body = pygame.image.load('body.png')
 
 while True:
+    FPS.tick(3)
     for event in pygame.event.get():
         if event.type == locals.QUIT:
             # 接收到退出事件后退出程序
             exit()
+    x += 30
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇画上去
-    screen.blit(right, (240, 120))
+    screen.blit(right, (x, y))
     # 将贪吃蛇的身体画上去
     screen.blit(body, (210, 120))
     screen.blit(body, (180, 120))