save project

my_music.py

@@ -44,7 +44,12 @@ while True:
                 pygame.mixer.music.pause()
                 play_button=play_img
     if pygame.mixer.music.get_busy()==False:
+        num+=1
+        if num.len(filelist)-1
+        num =0
+        pygame.mixer.music.load(filelist[num])
         pygame.mixer.music.play()
+
     
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景