Question

c#写的一个音乐播放器的程序每行代码的都什么意思

private OpenFileDialog openFileDialog = null;

private MediaPlayer mediaPlayer = null;

private Timer timer = null;

private int playSeconds = 0;

private int playPosition = 0;

private bool isPlaying = false;

private bool isOpened = false;

private delegate void TimerDispatcherDelegate();
public MainWindow()
{
openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Music File|*.mp3";
openFileDialog.FileOk += fileOK;
mediaPlayer = new MediaPlayer();
mediaPlayer.MediaOpened += mediaOpen;
mediaPlayer.MediaEnded += replay;
InitializeComponent();
getVolImg();
}

Answer 1

openFileDialog = new OpenFileDialog(); //调用打开文件对象
openFileDialog.Filter = "Music File|*.mp3"; // 文件类型过滤为mp3
openFileDialog.FileOk += fileOK; //点击OK执行..
mediaPlayer = new MediaPlayer(); //系统自带播放对象
mediaPlayer.MediaOpened += mediaOpen;
mediaPlayer.MediaEnded += replay;
InitializeComponent();// 初始化
getVolImg();

Answer 2

上面的代码还不足以实现某种功能，因此也谈不上什么意思。