auto save

my_game.py

@@ -12,7 +12,10 @@ 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')
-index = 0 
+     pygame.image.load('hero2.pon'),
+     pygame.image.load('hero3.pon'),
+     pygame.image.load('hero4.pon'),
+index = 0
 
 while True:
     for event in pygame.event.get():