auto save

my_game.py

@@ -11,7 +11,11 @@ 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
-hero = pygame.image.load('hero1.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')]
 index = 0 
 
 while True: