用pyqt5做一个简易的音乐播放器

需求

要求可以读取音频文档，有播放和暂停的功能

附上代码
（1）UI界面

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'UiForm.ui'
#
# Created by: PyQt5 UI code generator 5.15.1
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Form(object):
    def setupUi(self, Form):
        Form.setObjectName("Form")
        Form.resize(750, 350)
        self.btn_readMusic = QtWidgets.QPushButton(Form)
        self.btn_readMusic.setGeometry(QtCore.QRect(140, 200, 93, 28))
        self.btn_readMusic.setObjectName("btn_readMusic")
        self.btn_play = QtWidgets.QPushButton(Form)
        self.btn_play.setGeometry(QtCore.QRect(310, 200, 93, 28))
        self.btn_play.setObjectName("btn_play")
        self.btn_pause = QtWidgets.QPushButton(Form)
        self.btn_pause.setGeometry(QtCore.QRect(490, 200, 93, 28))
        self.btn_pause.setObjectName("btn_pause")
        self.label = QtWidgets.QLabel(Form)
        self.label.setGeometry(QtCore.QRect(50, 110, 81, 21))
        self.label.setObjectName("label")
        self.label_MusicMessage = QtWidgets.QLabel(Form)
        self.label_MusicMessage.setGeometry(QtCore.QRect(140, 110, 591, 21))
        self.label_MusicMessage.setObjectName("label_MusicMessage")

        self.retranslateUi(Form)
        QtCore.QMetaObject.connectSlotsByName(Form)

    def retranslateUi(self, Form):
        _translate = QtCore.QCoreApplication.translate
        Form.setWindowTitle(_translate("Form", "Form"))
        self.btn_readMusic.setText(_translate("Form", "读取音频"))
        self.btn_play.setText(_translate("Form", "播放"))
        self.btn_pause.setText(_translate("Form", "停止"))
        self.label.setText(_translate("Form", "当前播放:"))
        self.label_MusicMessage.setText(_translate("Form", "暂无"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Ui_Form()
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

（2）逻辑处理类

# -*- coding: utf-8 -*-
# @Time    : 2021/4/2 22:23
# @Author  : Zeeland
# @File    : FunEdit.py
# @Software: PyCharm

from PyQt5.QtWidgets import QWidget,QApplication,QFileDialog,QMessageBox
from UiForm import Ui_Form
import sys,time,pygame




class FunEdit(QWidget,Ui_Form):
    '''
    初始化各方面信息
    '''
    def __init__(self):
        super(FunEdit, self).__init__()
        self.setupUi(self)#Ui初始化
        self.init()

    '''
    该方法用于信号与槽的绑定
    '''
    def init(self):
        self.btn_readMusic.clicked.connect(self.readMusic)
        self.btn_play.clicked.connect(self.start)
        self.btn_pause.clicked.connect(self.pause)

    '''
    读取音频
    '''
    def readMusic(self):
        #读取特定格式的文件,传入一个self,"标题名","初始显示文件夹的路径","特定格式(以两个分号区分)"
        #该方法返回一个Tuple,分别为str类型的路径名和file的type(eg:MP3)
        self.fdir,self.ftype =QFileDialog.getOpenFileName(self,"Open File","","Mp3(*.mp3);;Wav(*.wav)")

        # 判断是否为空路径，如果为空路径，则不能加载音频，否则会闪退
        if self.fdir=="":
            print("没有选择文件")
            return

        print(self.fdir)
        pygame.init()#初始化音乐播放装置，初始化后才可以使用
        self.track =pygame.mixer.music.load(str(self.fdir))#加载音频文件(放入缓存池)
        self.label_MusicMessage.setText(str(self.fdir))


    '''
    播放
    '''
    def start(self):
        if self.label_MusicMessage.text()=='暂无':
            QMessageBox.about(self,'message','当前暂无播放的音乐')
            return
        pygame.mixer.music.play()#播放


    '''
    停止播放
    '''
    def pause(self):
        if self.label_MusicMessage.text()=='暂无':
            QMessageBox.about(self,'message','当前暂无播放的音乐')
            return
        pygame.mixer.music.stop()#暂停
        self.label_MusicMessage.setText("暂停中")

'''
主方法运行入口
'''
if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = FunEdit()
    win.show()
    sys.exit(app.exec())