前言

本文给大家分享的是如何通过利用Python实现多功能音乐播放器，废话不多直接开整~

开发工具

Python版本： 3.6

相关模块：

os模块

sys模块

time模块

random模块

PyQt5模块

环境搭建

安装Python并添加到环境变量，pip安装需要的相关模块即可。

文中完整源码，评论留言获取。

代码实现

初始化

	def __initialize(self):self.setWindowTitle('音乐播放器-Python工程狮')self.setWindowIcon(QIcon('icon.ico'))self.songs_list = []self.song_formats = ['mp3', 'm4a', 'flac', 'wav', 'ogg']self.settingfilename = 'setting.ini'self.player = QMediaPlayer()self.cur_path = os.path.abspath(os.path.dirname(__file__))self.cur_playing_song = ''self.is_switching = Falseself.is_pause = True# 界面元素# --播放时间self.label1 = QLabel('00:00')self.label1.setStyle(QStyleFactory.create('Fusion'))self.label2 = QLabel('00:00')self.label2.setStyle(QStyleFactory.create('Fusion'))# --滑动条self.slider = QSlider(Qt.Horizontal, self)self.slider.sliderMoved[int].connect(lambda: self.player.setPosition(self.slider.value()))self.slider.setStyle(QStyleFactory.create('Fusion'))# --播放按钮self.play_button = QPushButton('播放', self)self.play_button.clicked.connect(self.playMusic)self.play_button.setStyle(QStyleFactory.create('Fusion'))# --上一首按钮self.preview_button = QPushButton('上一首', self)self.preview_button.clicked.connect(self.previewMusic)self.preview_button.setStyle(QStyleFactory.create('Fusion'))# --下一首按钮self.next_button = QPushButton('下一首', self)self.next_button.clicked.connect(self.nextMusic)self.next_button.setStyle(QStyleFactory.create('Fusion'))# --打开文件夹按钮self.open_button = QPushButton('打开文件夹', self)self.open_button.setStyle(QStyleFactory.create('Fusion'))self.open_button.clicked.connect(self.openDir)# --显示音乐列表self.qlist = QListWidget()self.qlist.itemDoubleClicked.connect(self.doubleClicked)self.qlist.setStyle(QStyleFactory.create('windows'))# --如果有初始化setting, 导入settingself.loadSetting()# --播放模式self.cmb = QComboBox()self.cmb.setStyle(QStyleFactory.create('Fusion'))self.cmb.addItem('顺序播放')self.cmb.addItem('单曲循环')self.cmb.addItem('随机播放')# --计时器self.timer = QTimer(self)self.timer.start(1000)self.timer.timeout.connect(self.playByMode)# 界面布局self.grid = QGridLayout()self.setLayout(self.grid)self.grid.addWidget(self.qlist, 0, 0, 5, 10)self.grid.addWidget(self.label1, 0, 11, 1, 1)self.grid.addWidget(self.slider, 0, 12, 1, 1)self.grid.addWidget(self.label2, 0, 13, 1, 1)self.grid.addWidget(self.play_button, 0, 14, 1, 1)self.grid.addWidget(self.next_button, 1, 11, 1, 2)self.grid.addWidget(self.preview_button, 2, 11, 1, 2)self.grid.addWidget(self.cmb, 3, 11, 1, 2)self.grid.addWidget(self.open_button, 4, 11, 1, 2)

根据播放模式播放音乐

	def playByMode(self):if (not self.is_pause) and (not self.is_switching):self.slider.setMinimum(0)self.slider.setMaximum(self.player.duration())self.slider.setValue(self.slider.value() + 1000)self.label1.setText(time.strftime('%M:%S', time.localtime(self.player.position()/1000)))self.label2.setText(time.strftime('%M:%S', time.localtime(self.player.duration()/1000)))# 顺序播放if (self.cmb.currentIndex() == 0) and (not self.is_pause) and (not self.is_switching):if self.qlist.count() == 0:returnif self.player.position() == self.player.duration():self.nextMusic()# 单曲循环elif (self.cmb.currentIndex() == 1) and (not self.is_pause) and (not self.is_switching):if self.qlist.count() == 0:returnif self.player.position() == self.player.duration():self.is_switching = Trueself.setCurPlaying()self.slider.setValue(0)self.playMusic()self.is_switching = False# 随机播放elif (self.cmb.currentIndex() == 2) and (not self.is_pause) and (not self.is_switching):if self.qlist.count() == 0:returnif self.player.position() == self.player.duration():self.is_switching = Trueself.qlist.setCurrentRow(random.randint(0, self.qlist.count()-1))self.setCurPlaying()self.slider.setValue(0)self.playMusic()self.is_switching = False

代码有点多~~

剩余代码

'''打开文件夹'''def openDir(self):self.cur_path = QFileDialog.getExistingDirectory(self, "选取文件夹", self.cur_path)if self.cur_path:self.showMusicList()self.cur_playing_song = ''self.setCurPlaying()self.label1.setText('00:00')self.label2.setText('00:00')self.slider.setSliderPosition(0)self.is_pause = Trueself.play_button.setText('播放')'''导入setting'''def loadSetting(self):if os.path.isfile(self.settingfilename):config = configparser.ConfigParser()config.read(self.settingfilename)self.cur_path = config.get('MusicPlayer', 'PATH')self.showMusicList()'''更新setting'''def updateSetting(self):config = configparser.ConfigParser()config.read(self.settingfilename)if not os.path.isfile(self.settingfilename):config.add_section('MusicPlayer')config.set('MusicPlayer', 'PATH', self.cur_path)config.write(open(self.settingfilename, 'w'))'''显示文件夹中所有音乐'''def showMusicList(self):self.qlist.clear()self.updateSetting()for song in os.listdir(self.cur_path):if song.split('.')[-1] in self.song_formats:self.songs_list.append([song, os.path.join(self.cur_path, song).replace('\\', '/')])self.qlist.addItem(song)self.qlist.setCurrentRow(0)if self.songs_list:self.cur_playing_song = self.songs_list[self.qlist.currentRow()][-1]'''双击播放音乐'''def doubleClicked(self):self.slider.setValue(0)self.is_switching = Trueself.setCurPlaying()self.playMusic()self.is_switching = False'''设置当前播放的音乐'''def setCurPlaying(self):self.cur_playing_song = self.songs_list[self.qlist.currentRow()][-1]self.player.setMedia(QMediaContent(QUrl(self.cur_playing_song)))'''提示'''def Tips(self, message):QMessageBox.about(self, "提示", message)'''播放音乐'''def playMusic(self):if self.qlist.count() == 0:self.Tips('当前路径内无可播放的音乐文件')returnif not self.player.isAudioAvailable():self.setCurPlaying()if self.is_pause or self.is_switching:self.player.play()self.is_pause = Falseself.play_button.setText('暂停')elif (not self.is_pause) and (not self.is_switching):self.player.pause()self.is_pause = Trueself.play_button.setText('播放')'''上一首'''def previewMusic(self):self.slider.setValue(0)if self.qlist.count() == 0:self.Tips('当前路径内无可播放的音乐文件')returnpre_row = self.qlist.currentRow()-1 if self.qlist.currentRow() != 0 else self.qlist.count() - 1self.qlist.setCurrentRow(pre_row)self.is_switching = Trueself.setCurPlaying()self.playMusic()self.is_switching = False'''下一首'''def nextMusic(self):self.slider.setValue(0)if self.qlist.count() == 0:self.Tips('当前路径内无可播放的音乐文件')returnnext_row = self.qlist.currentRow()+1 if self.qlist.currentRow() != self.qlist.count()-1 else 0self.qlist.setCurrentRow(next_row)self.is_switching = Trueself.setCurPlaying()self.playMusic()self.is_switching = False'''run'''
if __name__ == '__main__':app = QApplication(sys.argv)gui = musicPlayer()gui.show()sys.exit(app.exec_())

结果展示

最后

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