auto save

snake.py

 import pygame
+import random
 from pygame import locals
 
+
 # 初始化pygame，为使用pygame做准备
 pygame.init()
 sab = pygame.image.load('bg.png')
@@ -11,6 +13,8 @@ body = pygame.image.load('body.png')
 sb=pygame.display.set_mode((660,480))
 FPSCLOCK = pygame.time.Clock()
 x, y = 240, 120
+apple_x = 360
+apple_y = 480
 lb = [(180,90),(180,120),(210,120),(x,y)]
 
 fx =  "right"
@@ -39,12 +43,14 @@ while True:
     #x += 30
     lb.append((x,y))
     lb.pop(0)
-
+    if apple_x and apple_y == x and y:
+        apple_x = random.randint(0,660)
+        apple_y = random.randint(0.480)
     sb.blit(sab,(0,0))
     sb.blit(right, lb[-1])
     #sb.blit(right,(x,y))
     #sb.blit(sab,(0,0))
-    sb.blit(food,(120,300))
+    sb.blit(food,(apple_x,apple_y))
     #sb.blit(right,(x,y))
     for i in range(len(lb)-1):
         sb.blit(body, lb[i])
@@ -53,4 +59,4 @@ while True:
 
 
     pygame.display.update()
-    FPSCLOCK.tick(3)
\ No newline at end of file
+    FPSCLOCK.tick(3)        
\ No newline at end of file