save project

my_music.py

@@ -50,8 +50,13 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
+    
 
     if pygame.mixer.music.get_busy() == False:
+        num+=1
+        if num > len(music_list)-1:
+            num = 0
+        pygame.mixer.music.load(music_list[num])
         pygame.mixer.music.play()
 
     # 绘制画面