本文所述为一个由C#编写的音乐播放器的主Form代码，里面有一些小技巧还是不错的，现共享给大家参考一下。里面有播放器背景设置、线程定义、调用读取文件目录方法、播放时间计数器、设置LV背景、获取播放歌曲、播放按钮，切换播放or暂停、切换歌曲到下一首，调用切歌方法、显示播放列表、歌词局中、播放窗体最小化隐藏到托盘设置、进度条滚动模块、从歌曲列表中删除文件等等功能。且各个功能模板均备有较为详细的注释，便于大家阅读理解。

程序主要代码如下：

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.IO; using System.Drawing.Imaging; using System.Threading; namespace MyMusicBox { public partial class MainForm : Form { public MainForm() { InitializeComponent(); SetStyle(ControlStyles.UserPaint, true); SetStyle(ControlStyles.OptimizedDoubleBuffer, true); SetStyle(ControlStyles.AllPaintingInWmPaint, true); SetStyle(ControlStyles.DoubleBuffer, true); } Song mySong = null;//播放的歌曲对象 ListViewItem itemLrc;//打开歌词路径项 Bitmap bm ;//用于动态设置LV背景 public SavingInfo sa = null;//持久化信息类 Thread thread;//后台线程 #region 加载事件 private void MainForm_Load(object sender, EventArgs e) { //调用读取配置文件方法 Path.ReadPath(); //窗体背景设置为配置文件中的图片 this.BackgroundImage = Image.FromFile(Path.bgPath); //调用读取文件目录方法 Path.ReadSong(); //读取播放列表 sa = new SavingInfo(); sa.LoadPlayList(); //绑定LV BindAllLV(); BindPlayLV(); SetLV(); SetLrcBG(); timer1.Enabled = Path.Playing; //显示时间 lblTime.Text = System.DateTime.Now.ToString(); //两个lbl用来根据歌曲总长和播放长度显示进度，设置位置重叠 lblRuning.Location = lblLong.Location; //启动线程 thread = new Thread(Renovate); thread.IsBackground = true; thread.Start(); } #endregion #region 后台刷新 /// <summary> /// 时间计数状态等刷新 /// </summary> private void Renovate() { //while (true) //{ // //计数 // Count(); // //获取当前时间 // lblTime.Text = System.DateTime.Now.ToString(); // //无歌曲提示，如果播放列表为空且当前播放列表为显示状态 // if (lvPlay.Items.Count == 0 && lvPlay.Visible) // lblTs.Visible = true; // else // lblTs.Visible = false; // Thread.Sleep(1000); //} } #endregion #region 设置LV背景 /// <summary> /// 设置LV背景 /// </summary> public void SetLV() { bm = new Bitmap(this.BackgroundImage, this.Width, this.Height); //绘制矩形，定义起始位置和宽高 Rectangle r = new Rectangle(lvPlay.Location.X, lvPlay.Location.Y, lvPlay.Width, lvSong.Height); //按矩形尺寸和起始位置截取bm的一部分 bm= bm.Clone(r,bm.PixelFormat); //把截取到的图片设置为lv背景，达到与主窗体背景完美契合的效果 lvSong.BeginUpdate(); lvSong.BackgroundImage = (Image)bm; lvSong.EndUpdate(); lvPlay.BeginUpdate(); lvPlay.BackgroundImage = (Image)bm; lvPlay.EndUpdate(); } #endregion #region 获取歌曲 /// <summary> /// 获取播放歌曲 /// </summary> private void GetSong() { //接收播放歌曲方法，获得一个歌曲对象 this.mySong = PlayList.Play(); //如果歌曲对象不为空 if (mySong != null) { //播放器路径设置为该歌曲路径 wmp.URL = mySong.FileName; //调用方法，显示歌曲名、歌手 lblName.Text = PlayList.GetName(); lblSinger.Text = PlayList.GetSinger(); mySong.SongState = SongPlayState.played;//修改播放状态 //播放按钮图片修改为暂停图片 btnPlay.Image = Image.FromFile("Imagesstop.png"); try { //读取歌词路径 Path.ReadLrc(); AddLrc(); //启动一个定时器，此定时器只控制歌词轮播 timer2.Start(); } catch (Exception) { LrcNull(); itemLrc = new ListViewItem(); itemLrc.SubItems.Add("找不到该歌曲歌词文件！"); itemLrc.ForeColor = Color.Blue; itemLrc.Font = new Font("微软雅黑", 14.25F, ((FontStyle)((FontStyle.Bold | FontStyle.Underline))), GraphicsUnit.Point, ((byte)(134))); lvLrc.Items.Add(itemLrc); } } } #endregion #region 主定时器 //定时器1 private void timer1_Tick(object sender, EventArgs e) { if (Path.songPath == "") { timer1.Enabled = false; return; } //如果当前无播放歌曲，调用获取歌曲的方法 if (this.mySong == null) { GetSong(); } //自动下一首，如果当前播放完毕 if (this.wmp.playState == WMPLib.WMPPlayState.wmppsStopped) { this.mySong = null; // 将歌曲设为空 Path.lrcPath = ""; Path.dicLrc.Clear(); PlayModel(); PlayList.PlayNext(); Thread.Sleep(1000); } // 切歌，当前有播放歌曲且播放状态为cut if (this.mySong != null && this.mySong.SongState == SongPlayState.cut) { this.wmp.URL = "";//置空 timer2.Stop(); Path.dicLrc.Clear(); Path.lrcPath = ""; this.mySong = null; } //如果当前有播放歌曲，需要获取的一些属性 if (wmp.URL!="") { //设置当前播放歌曲颜色 SongColor(); //获取音量控件显示值，根据控制刻度数量计算 this.trackBar1.Value = wmp.settings.volume / 10; //歌曲时间显示，一个是总长度，一个是已播放长度，字符串类型 lblAll.Text = wmp.currentMedia.durationString; lblRun.Text = wmp.Ctlcontrols.currentPositionString; //进度条,使用了两个lbl控件，歌曲长度/已播放长度=lbl1的宽/lbl2的宽 //乘1000为防止数据过小出现错误 double temp = (wmp.currentMedia.duration*1000) / (wmp.Ctlcontrols.currentPosition*1000); double width = lblLong.Width; double avg = width / temp; //判断>1为了防止avg数值小于int界限 if(avg>1) lblRuning.Width = Convert.ToInt32(avg); picRun.Left = lblRuning.Right; //托盘显示播放歌曲 this.notifyIcon1.Text =lblName.Text + lblSinger.Text; } } #endregion #region 播放按钮 /// <summary> /// 播放按钮，切换播放or暂停 /// </summary> private void btnPlay_Click(object sender, EventArgs e) { if(!timer1.Enabled) timer1.Start(); //如果当前为正在播放 if (wmp.playState == WMPLib.WMPPlayState.wmppsPlaying) { //暂停播放 wmp.Ctlcontrols.pause(); //按钮图片修改为播放 btnPlay.Image = Image.FromFile("Imagesplay.png"); //停止控制歌词滚动的定时器 if (timer2.Enabled) timer2.Stop(); } else if (wmp.playState == WMPLib.WMPPlayState.wmppsPaused) { //开始播放 wmp.Ctlcontrols.play(); //按钮图片修改为暂停 btnPlay.Image = Image.FromFile("Imagesstop.png"); //启动歌词滚动 if (!timer2.Enabled&&Path.dicLrc.Count>0) timer2.Start(); } } #endregion #region 切歌 //切换下一首，调用切歌方法 private void btnRight_Click(object sender, EventArgs e) { PlayList.Cut(false); } //上一首，调用切歌方法 private void btnLeft_Click(object sender, EventArgs e) { PlayList.Cut(true); } #endregion #region 音量 //静音，静音！=音量为0 private void btnModel_Click(object sender, EventArgs e) { //如果播放器非静音状态，前景文字显示红叉，状态改为静音 if (wmp.settings.mute == false) { btnSound.Text = "×"; wmp.settings.mute = true; } else//反之，已是静音状态，清空红叉，设置非静音状态 { btnSound.Text = ""; wmp.settings.mute = false; } } //设置音量，此事件为控制刻度值变化时 private void trackBar1_Scroll(object sender, EventArgs e) { //音量设置为控制刻度*10（因为初始化的时候是/10） wmp.settings.volume = this.trackBar1.Value * 10; } #endregion #region 歌曲列表操作 /// <summary> /// 绑定所有歌曲LV数据 /// </summary> private void BindAllLV() { //如果所有歌曲集合为空，结束 if (PlayList.song == null) return; lvSong.Items.Clear(); //遍历集合绑定到所有歌曲LV foreach (Song s in PlayList.song) { ListViewItem item = new ListViewItem(s.Name); item.Tag = s; item.SubItems.Add(s.Singer); lvSong.Items.Add(item); } } //点击显示所有歌曲 private void tslblAll_Click(object sender, EventArgs e) { //隐藏播放列表 lvPlay.Visible = false; //两个LV位置重叠 lvSong.Location = lvPlay.Location; //点击后改变背景色 tslblAll.BackColor = Color.Silver; tslblPlay.BackColor = Color.Transparent; //显示所有歌曲LV lvSong.Visible = true; } //点击显示播放列表 private void tslblPlay_Click(object sender, EventArgs e) { //调用绑定播放LV数据 BindPlayLV(); //背景色改变 tslblPlay.BackColor = Color.Silver; tslblAll.BackColor = Color.Transparent; //隐藏所有歌曲LV lvSong.Visible = false; //显示播放LV lvPlay.Visible = true; } /// <summary> /// 绑定播放列表 /// </summary> private void BindPlayLV() { //如果播放集合不为空 if (PlayList.play!=null) { lvPlay.Items.Clear(); //遍历集合绑定播放LV foreach (Song s in PlayList.play) { int id = lvPlay.Items.Count + 1; s.Id = id; ListViewItem item = new ListViewItem(id.ToString()); item.SubItems.Add(s.Name); item.Tag = s; lvPlay.Items.Add(item); } } } /// <summary> /// 歌曲计数 /// </summary> private void Count() { //if (lvSong.Visible) // lblCount.Text = "已选" + lvSong.CheckedItems.Count + "总" + lvSong.Items.Count; //if (lvPlay.Visible) // lblCount.Text = "总" + lvPlay.Items.Count; } #endregion #region 歌词操作 /// <summary> /// 设置歌词背景 /// </summary> public void SetLrcBG() { bm = new Bitmap(this.BackgroundImage, this.Width, this.Height); //绘制矩形，定义起始位置和宽高 Rectangle r = new Rectangle(lvLrc.Location.X, lvLrc.Location.Y, lvLrc.Width, lvLrc.Height); //按矩形尺寸和起始位置截取bm的一部分 bm = bm.Clone(r, PixelFormat.Undefined); //把截取到的图片设置为lv背景，达到与主窗体背景完美契合的效果 lvLrc.BeginUpdate(); lvLrc.BackgroundImage = (Image)bm; lvLrc.EndUpdate(); } int nullCount;//记录空行位置 /// <summary> /// 设置空行，使歌词局中 /// </summary> private void LrcNull() { lvLrc.Items.Clear(); nullCount = (int)Math.Ceiling(Convert.ToDouble(lvLrc.Height / 30 / 2)); for (int i = 0; i <= nullCount; i++) { lvLrc.Items.Add(""); } } /// <summary> /// 添加歌词 /// </summary> private void AddLrc() { LrcNull(); foreach (string key in Path.dicLrc.Keys) { ListViewItem item = new ListViewItem(); item.SubItems.Add(Path.dicLrc[key]); item.Tag = key; lvLrc.Items.Add(item); } } //只控制歌词轮播 private void timer2_Tick(object sender, EventArgs e) { //调用显示歌词的方法 ShowLrc(); } /// <summary> /// 显示歌词 /// </summary> private void ShowLrc() { foreach (ListViewItem item in lvLrc.Items) { if (item.Tag == null) continue; if (item.Tag.ToString() == lblRun.Text ) { item.ForeColor = Color.DarkOrange; item.Font = new Font("华文琥珀", 16F, FontStyle.Regular, GraphicsUnit.Point, ((byte)(134))); lvLrc.Items[item.Index -1].ForeColor = Color.Silver; lvLrc.Items[item.Index - 1].Font = new Font("微软雅黑", 12F, FontStyle.Regular, GraphicsUnit.Point, ((byte)(134))); if (item.Index + 1<lvLrc.Items.Count) lvLrc.Items[item.Index+1].EnsureVisible(); } } } #endregion #region 窗体隐藏到托盘设置 //最小化到托盘 private void btnMix_Click(object sender, EventArgs e) { this.Hide(); } //主窗体大小状态变化时 private void MainForm_SizeChanged(object sender, EventArgs e) { if (this.WindowState == FormWindowState.Minimized) { //启动一个控件，该控制可以让程序在右下角显示图标，需要提前设置该控制显示的图标图片 this.notifyIcon1.Visible = true; } } //托盘显示，双击显示窗体 private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e) { ShowMain(); } /// <summary> /// 显示主窗体 /// </summary> public void ShowMain() { if (!this.Visible) { this.TopMost = true; this.Show(); this.TopMost = false; } else { this.TopMost = true; this.TopMost = false; } } //托盘打开窗体 private void tsmiShow_Click(object sender, EventArgs e) { ShowMain(); } //托盘退出 private void tsmiExit_Click(object sender, EventArgs e) { Application.Exit(); } #endregion #region 窗体位移 Point mouseOff;//鼠标移动位置变量 bool leftFlag;//标记是否为左键 private void pnlMain_MouseDown(object sender, MouseEventArgs e) { if (e.Button == MouseButtons.Left) { mouseOff = new Point(-e.X, -e.Y); //得到变量的值 leftFlag = true; //点击左键按下时标注为true; } } private void pnlMain_MouseMove(object sender, MouseEventArgs e) { if (leftFlag) { Point mouseSet = Control.MousePosition; mouseSet.Offset(mouseOff.X, mouseOff.Y); //设置移动后的位置 Location = mouseSet; } } private void pnlMain_MouseUp(object sender, MouseEventArgs e) { if (leftFlag) { leftFlag = false;//释放鼠标后标注为false; } } #endregion #region 进度条滚动块移动 int runX;//记录滚动块初始位置 private void picRun_MouseDown(object sender, MouseEventArgs e) { runX = e.X; } //释放鼠标位移，进度前进 private void picRun_MouseUp(object sender, MouseEventArgs e) { picRun.Left += e.X - runX - picRun.Width / 2; if (picRun.Left > lblLong.Right) picRun.Left = lblLong.Right; if(picRun.Left<lblLong.Left) picRun.Left = lblLong.Left; if (mySong != null) { lblRuning.Width = picRun.Right- lblRuning.Left; double temp = (lblLong.Width*1000.0 )/ (lblRuning.Width*1000.0); wmp.Ctlcontrols.currentPosition = wmp.currentMedia.duration / temp; } } #endregion #region 歌曲增删操作 //添加歌曲到播放列表 private void tsmiAdd_Click(object sender, EventArgs e) { if (lvSong.CheckedItems.Count > 0) { foreach (ListViewItem item in lvSong.CheckedItems) { // 遍历播放集合，如果存在不添加 foreach (Song s in PlayList.play) { if (s.Name == item.Text) { PlayList.play.Remove(s); break; } } PlayList.play.Add(item.Tag as Song); } } } //所有歌曲：删除选中歌曲 private void tsmiDel_Click(object sender, EventArgs e) { foreach (ListViewItem item in lvSong.Items) { if (item.Checked) { PlayList.song.Remove(item.Tag as Song); } } BindAllLV(); } //全选歌曲 private void tsmiCheck_Click(object sender, EventArgs e) { foreach (ListViewItem item in lvSong.Items) { if (tsmiCheck.Text == "全部选中") { item.Checked = true; if(item.Index+1==lvSong.Items.Count) tsmiCheck.Text = "取消选中"; } else { item.Checked = false; if (item.Index + 1 == lvSong.Items.Count) tsmiCheck.Text = "全部选中"; } } } //选中项的同时选中复选框 private void lvSong_MouseDown(object sender, MouseEventArgs e) { if (lvSong.SelectedItems.Count > 0 && e.Button == MouseButtons.Left) { lvSong.SelectedItems[0].Checked = true; } } //播放列表删除事件 private void tsmiPlayDel_Click(object sender, EventArgs e) { foreach (ListViewItem item in lvPlay.Items) { if (item.Selected) { //PlayList.id = (lvPlay.Items[item.Index+1].Tag as Song).Id; //this.song = null; PlayList.play.Remove(item.Tag as Song); } } BindPlayLV(); } //清空播放列表 private void tsmiPlayClear_Click(object sender, EventArgs e) { PlayList.play.Clear(); this.mySong = null; BindPlayLV(); } //从播放列表删除文件 private void tsmiPlayDelFile_Click(object sender, EventArgs e) { if (lvPlay.SelectedItems.Count > 0) { DelFile(lvPlay.SelectedItems[0]); } } /// <summary> /// 删除某项对应文件 /// </summary> /// <param name="item"></param> private void DelFile(ListViewItem item) { try { string path = (item.Tag as Song).FileName; File.Delete(path); BindAllLV(); BindPlayLV(); } catch (Exception) { MessageBox.Show("该文件为只读文件或用户权限不够，无法删除！"); } } //从所有歌曲中删除文件 private void tsmiDelFile_Click(object sender, EventArgs e) { if (lvSong.SelectedItems.Count > 0) { DelFile(lvSong.SelectedItems[0]); } } //双击列表项播放歌曲 private void lvPlay_DoubleClick(object sender, EventArgs e) { if (!timer1.Enabled) { PlayList.id = (lvPlay.SelectedItems[0].Tag as Song).Id; timer1.Start(); } if (lvPlay.SelectedItems.Count > 0) { PlayList.id = (lvPlay.SelectedItems[0].Tag as Song).Id; this.mySong = null; } } #endregion #region 设置 //跳转设置窗体 private void btnSet_Click(object sender, EventArgs e) { SetForm set = new SetForm(); set.parent = this;//把主窗体传过去 set.Show(this); } #endregion #region 回滚 /// <summary> /// 路径重置后 /// </summary> public void Back() { BindAllLV(); PlayList.Update(); timer1.Start(); } #endregion #region 退出 //关闭时保存列表 private void MainForm_FormClosing(object sender, FormClosingEventArgs e) { if (Path.SaveList) sa.SavePlayList(); } //面板退出 private void btnExit_Click(object sender, EventArgs e) { if (Path.Exit) { Application.Exit(); } else { this.Hide(); } } #endregion #region 背景颜色等变换控制 private void btnLeft_MouseEnter(object sender, EventArgs e) { ((Button)sender).BackgroundImage = Image.FromFile("Images//allbtn_highlight.png"); } private void btnLeft_MouseLeave(object sender, EventArgs e) { ((Button)sender).BackgroundImage = null; } private void tslblPlay_MouseEnter(object sender, EventArgs e) { ((ToolStripLabel)sender).BackgroundImage = Image.FromFile("Images//Album_bkg_wubian.png"); } private void tslblPlay_MouseLeave(object sender, EventArgs e) { ((ToolStripLabel)sender).BackgroundImage = null; } //选中改变颜色 private void lvSong_ItemChecked(object sender, ItemCheckedEventArgs e) { foreach (ListViewItem item in lvSong.Items) { if (item.Checked) { item.ForeColor = Color.DarkOrange; } else { item.ForeColor = Color.DimGray; } } } /// <summary> /// 当前播放歌曲改变颜色 /// </summary> private void SongColor() { foreach (ListViewItem item in lvPlay.Items) { if (item.SubItems[1].Text == lblName.Text) { item.ForeColor = Color.DeepSkyBlue; } else { item.ForeColor = Color.White; } } } #endregion #region 选择歌词 private void lvLrc_MouseDown(object sender, MouseEventArgs e) { if (lvLrc.SelectedItems.Count>0&&lvLrc.SelectedItems[0] == itemLrc) { if (Path.OpenLrc()) { AddLrc(); //启动一个定时器，此定时器只控制歌词轮播 timer2.Start(); } } } #endregion #region 窗体最大化设置 Size now;//原始尺寸 Point pN;//原始位置 //最大化 private void btnMax_Click(object sender, EventArgs e) { Size max = new Size(Screen.PrimaryScreen.WorkingArea.Width - 10, Screen.PrimaryScreen.WorkingArea.Height - 20); if (this.Size != max) { pN = this.Location; now= this.Size; this.Size = max; this.Left = 5; this.Top = 5; btnMax.Image = Image.FromFile("Images//max1.png") ; } else { this.Location = pN; this.Size = now; btnMax.Image = Image.FromFile("Images//max.png"); } SetLV(); SetLrcBG(); } #endregion #region 歌词、MV切换 private void tsmiLrc_Click(object sender, EventArgs e) { lvLrc.Visible = true; wmp.Visible = false; tsmiLrc.BackColor = Color.LawnGreen; tsmiMv.BackColor = Color.Transparent; } private void tsmiMv_Click(object sender, EventArgs e) { wmp.Location = lvLrc.Location; wmp.Size = lvLrc.Size; lvLrc.Visible = false; wmp.Visible = true; tsmiLrc.BackColor = Color.Transparent; tsmiMv.BackColor = Color.LawnGreen; } #endregion #region 播放模式切换 /// <summary> /// 播放模式 /// </summary> private void PlayModel() { if (tsmiOne.Checked) { PlayList.PlayOne(); } else if (tsmiSJ.Checked) { PlayList.PlayRandom(); } } private void tsmiXH_Click(object sender, EventArgs e) { ToolStripMenuItem ts=((ToolStripMenuItem)sender); foreach(ToolStripMenuItem item in tsmiModel.DropDownItems) { if (ts.Checked && ts == item) { continue; } else { item.Checked = false; } } } #endregion } }

希望本文所述示例对大家的C#程序开发能够起到一定的借鉴价值。