save project

my_music.py

@@ -49,9 +49,7 @@ while True:
         if event.type == locals.MOUSEBUTTONDOWN:
             if event.button == 1:
                 x,y = event.pos
-                import pygame
-
-    
+                if x > 270 and x < 370 and y >350 and y < 450:    
                 # 次数增加
                     click += 1
                     if click % 2 == 0:
@@ -60,7 +58,14 @@ 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()
+                    click = 0
+                    play_button =
     if pygame.mixer.music.get_busy() == False:
         num += 1
         if num > len(music_list)-1: