auto save

my_music.py

@@ -48,14 +48,28 @@ 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_img 
+                    click=0
+                if x > 420 and x <  520 and y > 350 and y <400 :
+                    num -= 1
+                    if num = len(music_list)-1
+                        num = 0
+                    pygame.mixer.music.load(path+"\\"+music_list[num])
+                    pygame.mixer.music.play()
+                    play_button = stop_img 
+                    click=0
     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()
-
+        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