auto save

my_game.py

 import pygame
 from pygame import locals
+import random
 
 pygame.init()  # 初始化
 # 创建一个窗口
@@ -9,14 +10,17 @@ FPS = pygame.time.Clock()  # pygame时钟，控制游戏速度（帧数）
 # 载入图片
 background = pygame.image.load('bg.png')    # 背景
 road = pygame.image.load('road.png')      # 路
-stone = pygame.image.load('stone.png')      # 石头
-cacti = pygame.image.load('cacti.png')      # 仙人掌
-apple = pygame.image.load('bush.png')      # 灌木丛
+mmd=[pygame.image.load('stone.png'),      
+        pygame.image.load('cacti.png') , 
+        pygame.image.load('bush.png')]
 hero = [pygame.image.load('hero1.png'),
         pygame.image.load('hero2.png'),
         pygame.image.load('hero3.png'),
         pygame.image.load('hero4.png'),
         pygame.image.load('hero5.png')]
+yyds=0
+
+
 index = 0 
 y=400
 q=1
@@ -51,8 +55,10 @@ while True:
     if index ==5:
         index=0
     
-
+    yyds=random.randint(0,2)
+    c=mmd[yyds]
     # 将背景图画上去
+    screen.blit(c,(200,400))
     screen.blit(background, (0, 0))
     screen.blit(road, (0, 500))
     screen.blit(a, (150, y))