基于Python+Tkinter实现音乐播放器

class MusicPlayer:
    def __init__(self, root):
        self.root = root
        self.root.title("音乐播放器")
        self.root.geometry("500x350")

        # 初始化pygame的音频引擎
        pygame.mixer.init()

# 添加文件按钮
btn_add = tk.Button(self.root, text="添加文件", command=self.add_files)
btn_add.pack(pady=5)

# 部分代码略...

btn_play = tk.Button(frame_controls, text="播放", command=self.play_music)
btn_play.grid(row=0, column=0, padx=5)

btn_pause = tk.Button(frame_controls, text="暂停/恢复", command=self.pause_music)
btn_pause.grid(row=0, column=1, padx=5)

btn_stop = tk.Button(frame_controls, text="停止", command=self.stop_music)
btn_stop.grid(row=0, column=2, padx=5)

def add_files(self):
    filetypes = [("音频文件", "*.mp3 *.wav *.ogg")]
    new_files = filedialog.askopenfilenames(title="选择音频文件", filetypes=filetypes)
    for f in new_files:
        if f not in self.playlist:
            self.playlist.append(f)
            self.listbox.insert(tk.END, os.path.basename(f))

def play_music(self):
    if not self.playlist:
        return  # 播放列表为空，直接返回

    selection = self.listbox.curselection()
    if selection:
        index = selection[0]
    else:
        # 部分代码略...

        # 部分代码略...

        # 开启更新进度条的线程
        t = threading.Thread(target=self.update_progress, daemon=True)
        t.start()

def pause_music(self):
    if self.is_stopped or self.current_index is None:
        return
    if not self.is_paused:
        pygame.mixer.music.pause()
        self.is_paused = True
    else:
        pygame.mixer.music.unpause()
        self.is_paused = False

def stop_music(self):
    pygame.mixer.music.stop()
    self.is_stopped = True
    self.is_paused = False
    self.progress['value'] = 0

def update_progress(self):
    sound = pygame.mixer.Sound(self.playlist[self.current_index])
    total_length = sound.get_length()  # 获取音频总时长(秒)

    start_time = time.time()
    while not self.is_stopped and not self.is_paused:
        if not pygame.mixer.music.get_busy():
            break  # 播放结束

        # 部分代码略...

        self.progress['value'] = progress_percent
        self.root.update_idletasks()
        time.sleep(0.2)  # 200ms 刷新一次

    self.progress['value'] = 0

def set_volume(self, val):
    volume = float(val)
    pygame.mixer.music.set_volume(volume)