auto save

snake.py

 import pygame
 from pygame import locals
-
+import random
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -54,7 +54,8 @@ while True:
         y += 30
     position.append((x, y))
     if x == food_x and y == food_y:
-
+        food_x = random.randint(0,660)
+        food_y = random.randint(0,480)
     position.pop(0)
     # 将背景图画上去
     screen.blit(background, (0, 0))