save project

my_music.py

@@ -49,8 +49,12 @@ while True:
                     pygame.mixer.music.pause()
 
     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
     screen.blit(play_button, (270, 330))   # 暂停按钮