diff --git a/my_music.py b/my_music.py
index 14a8b61..4871bdd 100644
--- a/my_music.py
+++ b/my_music.py
@@ -14,7 +14,8 @@ logo_img = pygame.image.load('logo.png')  # 下一曲按钮
 
 # 载入音乐
 pygame.mixer.music.load('歌曲4.ogg')  # 载入音乐      
-
+sb=["歌曲1.wav","歌曲2.wav","歌曲3.wav","歌曲4.ogg"]
+num=-1
 volume = 0.2
 pygame.mixer.music.set_volume(volume)  # 初始播放音量
 click = 0
@@ -52,8 +53,15 @@ while True:
                         pygame.mixer.music.pause()
 
     if pygame.mixer.music.get_busy() == False:
-        pygame.mixer.music.play()
+        
+        num=-1
+    
+        num+=1
+        if num>len(list)-1;
+        num=0
+
    
+    pygame.mixer.music.play()
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(play_button, (270, 330))   # 暂停按钮