save project

my_music.py

@@ -50,7 +50,22 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
-    
+                if x>120 and x>220 and y>350 and y< 400:
+                        list_number-=1
+                if list_number<0:
+                        list_number=len(listmusic)-1
+                        pygame.mixer.music.load('歌曲4.ogg')
+                        pygame.mixer.music.piay()
+                        click=0
+                        play_button=play_img
+                if x>420 and x<520 and y>350 and y<400:
+                    list_number+=1
+                    if list_number>len(listmusic)-1:
+                        list_number=0
+                    pygame.mixer.music.load('歌曲4.ogg')
+                    pygame.mixer.music.piay()
+                    click=0
+                    play_button=play_img    
     if pygame.mixer.music.get_busy() == False:
         pygame.mixer.music.play()