auto save

my_music.py

@@ -52,7 +52,8 @@ while True:
                         pygame.mixer.music.pause()
 
     if pygame.mixer.music.get_busy() == False:
-        pygame.mixer.music.play()
+        num +=1
+        if num > len()
 
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景