save project

my_music.py

@@ -58,13 +58,23 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
-
+            if x > 120 and x < 220 and y > 350 and y < 400:
+                num-= 1
+                if num < 0:
+                    num = len(music_list) - 1
+                pygame.mixer.music.load(path+"\\"+music_list[num])
+                pygame.mixer.music.play()
+                play_button = stop_ing
+                click = 0
+            if x > 420 and x < 520 and y < 400:
+                num += 1
+                if num > len(music_list)-1:
+                    num = 0
     if pygame.mixer.music.get_busy() == False:
         num+=1
         if num>len(filelist)-1:
             num=0
         pygame.mixer.music.load(path+"\\"+music_list[num])
-        
         pygame.mixer.music.play()
 
     # 绘制画面