auto save

snake.py

 import pygame
 import pygame
+import random
 from pygame import locals
 from pygame import locals
 
 
 # 初始化pygame，为使用硬件做准备
 # 初始化pygame，为使用硬件做准备
@@ -51,6 +52,10 @@ while True:
         y -= 30
         y -= 30
     else:
     else:
         y += 30
         y += 30
+    pos.pop
+    if food_x==x and food_y==y:
+        food_x=30*randon.randing(0,21)
+        food_y=30*randon.randing(0,15)
     position.append((x, y))
     position.append((x, y))
     position.pop(0)
     position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
@@ -65,4 +70,5 @@ while True:
     screen.blit(food, (360, 300))
     screen.blit(food, (360, 300))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(3)
+    FPSCLOCK.tick(3)
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+    
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