save project

snake.py

 import pygame
 from pygame import locals
 import random
-
+score=0
 # 初始化pygame，为使用硬件做准备
 pygame.init()
-
+my_font=""
 # 创建一个窗口
 screen = pygame.display.set_mode((660, 480))
 FPSCLOCK = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
@@ -58,8 +58,11 @@ while True:
         sy=random.randint(1,15)
         ax=sx*30-30
         ay=sy*30-30
+        score+=30
     else:
         position.pop(0)
+    if x<0 or x>630 or y<0 or y>450:
+        exit()
     
     position.append((x, y))
     # 将背景图画上去
@@ -72,6 +75,10 @@ while True:
 
     # 将果实画上去
     screen.blit(food, (ax,ay))
+    info='score'+str(score)
+    text=my_font.render(info,True,(0,0,0))
+    screen.blit(text,(540,10))
+
     # 刷新画面
     pygame.display.update()
     FPSCLOCK.tick(3)
\ No newline at end of file