save project

my_music.py

 import pygame
 from pygame import locals
+import os
+
 
 pygame.init()  # 初始化
 # 创建窗口
@@ -13,13 +15,15 @@ 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
-pygame.mixer.music.load('歌曲4.ogg')  # 载入音乐      
+pygame.mixer.music.load('歌曲2.wav')  # 载入音乐      
 
 volume = 0.2
 pygame.mixer.music.set_volume(volume)  # 初始播放音量
 click = 0
 play_button = stop_img
 music_list = ['歌曲1.wav','歌曲2.wav','歌曲3.wav','歌曲4.ogg']
+listmusic = []
+os.listdir()
 list_number = -1
 while True:
     for event in pygame.event.get():
@@ -37,8 +41,6 @@ while True:
                 if volume < 0:
                     volume = 0
                 pygame.mixer.music.set_volume(volume)
-
-        # 按下鼠标
         if event.type == locals.MOUSEBUTTONDOWN:
             if event.button == 1:
                 x , y = event.pos
@@ -50,13 +52,20 @@ while True:
                     else:
                         play_button = play_img
                         pygame.mixer.music.pause()
+                if x > 120 and x < 220 and y > 350 and y < 400:
+                    list_number -= 1
+                    if list_number < 0:
+                        list_number = len(listmusic)-1
+                    pygame.mixer.music.load("C:\\Users\\70471\\Documents\\pygame_lesson5_diy1"+"\\"+listmusic(list_number))
+                    pygame.mixer.music.play()
+                    click = 0
+                    play_button = stop_img
     if pygame.mixer.music.get_busy() == False:
         list_number += 1
         if list_number > len(music_list)-1:
             list_number = 0
             pygame.mixer.music.load(music_list[last_number])
         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
@@ -64,4 +73,4 @@ while True:
     screen.blit(last_img, (120, 350))   # 上一曲
     screen.blit(next_img, (420, 350))   # 下一曲
     # 刷新画面
-    pygame.display.update()
+    pygame.display.update()
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