save project

my_music.py

@@ -47,6 +47,14 @@ while True:
         if event.type == locals.MOUSEBUTTONDOWN:
             if event .button == 1:
                 x,y = event.pos
+                if x > 270 and x < 370 and y > 350 and y < 450:
+                    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     
                 # 次数增加
                     click += 1
                     if click % 2 == 0:
@@ -55,7 +63,7 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
-
+                if x > 120 and x < 220 and y > 350 and y <400:
     if pygame.mixer.music.get_busy() == False:
         num += 1
         if num > len(filelist)-1: