save project

snake.py

 import pygame
 from pygame import locals
 import random 
+import time
 
 # 初始化pygame，为使用硬件做准备
 pygame.init()
@@ -18,6 +19,7 @@ left = pygame.image.load('left.png')        # 头 朝左
 up = pygame.image.load('up.png')            # 头 朝上
 down = pygame.image.load('down.png')        # 头 朝下
 w=pygame.font.Font('neuropol.ttf',18)
+ff=pygame.font.Font('neuropol.ttf',70)
 x, y = 240, 120
 s,b=360,180
 position = [(180, 90), (180, 120), (210, 120), (x, y)]
@@ -64,6 +66,7 @@ while True:
         position.pop(0)
     # 将背景图画上去
     qq='s:'+str(a)
+    xx='Game Over'
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     screen.blit(snake_head, position[-1])
@@ -72,8 +75,12 @@ while True:
     screen.blit(ddd,(0,0))
     for i in range(len(position)-1):
         screen.blit(body, position[i])
-    if x<0 or x>630 or y<0 or y>450
-        
+    if x<0 or x>630 or y<0 or y>450 or ((x,y) in position[:-1]):
+        sss=ff.render(xx,True,(0,0,0))
+        screen.blit(sss,(60,60))
+        pygame.display.flip()
+        time.sleep(3)
+        exit()
     # 将果实画上去
     screen.blit(food, (s,b))
     # 刷新画面