auto save

snake.py

 import pygame
 from pygame import locals
 import random
+import pygame
+from pygame import locals
+import random
+import sys
+import time  
 # 初始化pygame，为使用硬件做准备
 pygame.init()
 
@@ -21,7 +26,7 @@ down = pygame.image.load('down.png')        # 头 朝下
 x, y = 240, 120
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
 
-random
+#random
 
 setheading = "right"
 snake_head = right
@@ -47,7 +52,11 @@ while True:
             if event.key == locals.K_DOWN and setheading != "up":
                 setheading = 'down'
                 snake_head = down
-
+            if (x>630 or x<0 or y>450 or y<0) or ((x,y) in position[:-1]):
+                screen.blit(over,(60,60))
+                pygame.display.flip()
+                time.sleep(10)
+                
     # 设置贪吃蛇的头部坐标
     if setheading == "right":
         x += 30
@@ -68,7 +77,7 @@ while True:
         apple_y = 30*nun2-30
     else:
         position.pop(0)
-        if x < 0 and x > 630 and y < 0 and y > 450  
+
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去