save project

my_music.py

 import pygame
 from pygame import locals
+import os
 
 pygame.init()  # 初始化
 # 创建窗口
@@ -13,6 +14,12 @@ next_img = pygame.image.load('next.png')  # 下一曲按钮
 logo_img = pygame.image.load('logo.png')  # 下一曲按钮
 
 # 载入音乐
+filelist=os.listdir(r'C:\Users\HD4\Documents\pygame_lesson5_diy1')
+music_list=[]
+for i in filelist:
+    if i[-4:]=='.wav':
+        music_list.append(i)
+num=-1
 pygame.mixer.music.load('歌曲4.ogg')  # 载入音乐      
 
 volume = 0.2
@@ -39,16 +46,37 @@ while True:
 
         # 按下鼠标
         if event.type == locals.MOUSEBUTTONDOWN:
-                # 次数增加
-                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.button==1:
+                x,y=event.pos
+                if 270<x<370 and 330<y<430:
+                    # 次数增加
+                    click += 1
+                    if click % 2 == 0:
+                        play_button = stop_img
+                        pygame.mixer.music.unpause()
+                    else:
+                        play_button = play_img
+                        pygame.mixer.music.pause()
+                if 120<x<220 and 350<y<400:
+                    num-=1
+                    if num<0:
+                        num=len(music_list)-1
+                    pygame.mixer.music.load(music_list[num])  # 载入音乐 
+                    pygame.mixer.music.play()
+                if 420<x<520 and 350<y<400:
+                    num+=1
+                    if num>len(music_list)-1:
+                        num=0
+                    pygame.mixer.music.load(music_list[num])  # 载入音乐 
+                    pygame.mixer.music.play()
+
+
 
     if pygame.mixer.music.get_busy() == False:
+        num+=1
+        if num>len(music_list)-1:
+            num=0
+        pygame.mixer.music.load(music_list[num])  # 载入音乐 
         pygame.mixer.music.play()
 
     # 绘制画面