save project

my_music.py

 import pygame
 from pygame import locals
-import os
 
 pygame.init()  # 初始化
 # 创建窗口
@@ -13,15 +12,9 @@ last_img = pygame.image.load('last.png')  # 上一曲按钮
 next_img = pygame.image.load('next.png')  # 下一曲按钮
 logo_img = pygame.image.load('logo.png')  # 下一曲按钮
 
-# 音乐
-music_list = []
-path = "C:\\Users\\bellcode\\Desktop\\test"
-filelist = os.listdir(path)
-for i in filelist:
-    if i[-4:] == ".ogg" or i[-4:] == ".wav":
-        music_list.append(i)
-
-num = -1    
+# 载入音乐
+filelist=['歌曲1.wav','歌曲2.wav','歌曲3.wav','歌曲4.ogg']
+num=-1
 volume = 0.2
 pygame.mixer.music.set_volume(volume)  # 初始播放音量
 click = 0
@@ -35,7 +28,7 @@ while True:
         if event.type == locals.KEYDOWN:
             if event.key == locals.K_UP:
                 volume += 0.1
-                if volume > 1:
+                if volume > 1:  
                     volume = 1
                 pygame.mixer.music.set_volume(volume)
             if event.key == locals.K_DOWN:
@@ -43,25 +36,30 @@ while True:
                 if volume < 0:
                     volume = 0
                 pygame.mixer.music.set_volume(volume)
-
-        if event.type == locals.MOUSEBUTTONDOWN:
-            if event.button == 1:  # 左击
-                x, y = event.pos
-                if x > 270 and x < 370 and y > 350 and y < 450:
-                    click += 1
-                    if click % 2 == 0:
-                        play_button = stop_img
-                        pygame.mixer.music.unpause()
-                    else:
-                        play_button = play_img
-                        pygame.mixer.music.pause()
-
+    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: 
+                click += 1 
+                if click % 2 == 0:
+                    play_button = stop_img
+                    pygame.mixer.music.unpause()
+                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(filelist)-1
+                pygame.mixer.music.load(filelist[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
-        print(num)
-        pygame.mixer.music.load(path + "\\"+music_list[num])
+        num+=1
+        if num>len(filelist)-1:
+            num=0
+        pygame.mixer.music.load(filelist[num])
         pygame.mixer.music.play()
 
     # 绘制画面