auto save

my_game.py

@@ -84,6 +84,8 @@ while True:
     for sprite in block_list:    
         sprite.rect.x -= 8
         screen.blit(sprite.image,(sprite.rect.x,sprite.rect.y))
+        if sprite.rect.x <= 0-sprite.rect.width:
+            sprite.kill()
      
     # 刷新画面
     pygame.display.update()