save project

my_music.py

@@ -57,14 +57,29 @@ while True:
                     else:
                     else:
                         play_button = play_img
                         play_button = play_img
                         pygame.mixer.music.pause()
                         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 = play_img
+                    click = 0
+                if x > 20 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])  # 载入音乐
+                    pygame.mixer.music.play()
+                    play_button = play_img
+                    click = 0
     if pygame.mixer.music.get_busy() == False:
     if pygame.mixer.music.get_busy() == False:
         num += 1
         num += 1
-        if num > len(music_list)-1:
+        if num > len(filelist)-1:
             num = 0
             num = 0
+        print(num)
         pygame.mixer.music.load(path+"\\"+music_list[num])  # 载入音乐
         pygame.mixer.music.load(path+"\\"+music_list[num])  # 载入音乐
         pygame.mixer.music.play()
         pygame.mixer.music.play()
-
     # 绘制画面
     # 绘制画面
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(bg_img, (0, 0))      # 填充背景
     screen.blit(play_button, (270, 330))   # 暂停按钮
     screen.blit(play_button, (270, 330))   # 暂停按钮