学生时代做的一个非常低级的卡拉OK播放器
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学生时代做的一个非常低级的C#卡拉OK播放器。
实现了桌面卡拉OK[单行，双行]，繁简转换，歌曲搜索，3种播放模式[单首，循环，随机]，全屏歌词，全局快捷键，XML配置，指定歌词文件夹，等等一些简单的功能。
源码点击下载
无意中翻出来了，看看，听听歌，有别有一番乐趣，想当初做这个的时候才接触编程1年。里面用了太多的集合，歌词判断也非常不准备。呵呵。算是用一种非常笨的方法实现的吧。里面没什么高深的技术。主要就是用到了双缓冲[一种防止歌词刷新时屏幕闪烁的技术]、注册全局快捷键等。
已经好久没有接触C#了，虽然这是曾经非常感兴趣的东西，却为了学习编程思想选择了JAVA。如果现在再让我做，我一定会把里面的代码简化简化再简化吧。看着那些乱七八糟的代码，想想自己当年的何其的菜鸟水平的作品。也是一种人生的乐趣。
主界面：
窗体卡拉OK
桌面卡拉OK显示[支持单行，双行]：
配置：
歌词配置[当时我还没有学XML，实现来源于网上]：
<configuration> <appSettings> <add key="lrcDir" value="E:\music\AIRPLAY.DAT\Lyrics" /> <add key="playState" value="2" /> <add key="sound" value="28" /> <add key="DeskIsDoubleline" value="true" /> <add key="DeskFontFamily" value="英章楷书" /> <add key="DeskFontSize" value="27.75" /> <add key="DeskFontStyle" value="bold" /> <add key="DeskNormalColor" value="-65536" /> <add key="DeskLightColor" value="-16711936" /> <add key="FontSize" value="15" /> <add key="NormalColor" value="-4144960" /> <add key="LightColor" value="-16711872" /> <add key="BackColor" value="-16777216" /> <add key="FontStyle" value="bold" /> <add key="FontFamily" value="英章楷书" /> <add key="DeskBackColor" value="-16777216" /> </appSettings></configuration>
读取配置文件的核心处理类：
using System;using System.Collections.Generic;using System.Text;using System.Xml;namespace LrcCollection{ internal class Config { public static string GetValue(string AppKey) { try { XmlDocument document = new XmlDocument(); document.Load(System.AppDomain.CurrentDomain.BaseDirectory + "LrcSet.xml"); XmlElement element = (XmlElement)document.SelectSingleNode("//appSettings").SelectSingleNode("//add[@key='" + AppKey + "']"); if (element != null) { return element.GetAttribute("value"); } return null; } catch { return null; } } public static void SetValue(string AppKey, string AppValue) { try { XmlDocument document = new XmlDocument(); document.Load(System.AppDomain.CurrentDomain.BaseDirectory + "LrcSet.xml"); XmlNode node = document.SelectSingleNode("//appSettings"); XmlElement element = (XmlElement)node.SelectSingleNode("//add[@key='" + AppKey + "']"); if (element != null) { element.SetAttribute("value", AppValue); } else { XmlElement newChild = document.CreateElement("add"); newChild.SetAttribute("key", AppKey); newChild.SetAttribute("value", AppValue); node.AppendChild(newChild); } document.Save(System.AppDomain.CurrentDomain.BaseDirectory + "LrcSet.xml"); } catch { SetValue(AppKey, AppValue, true); } } public static void SetValue(string AppKey, string AppValue, bool tt) { XmlDocument document = new XmlDocument(); XmlNode node = document.CreateNode(XmlNodeType.Element, "configuration", ""); document.AppendChild(node); XmlNode node2 = document.CreateNode(XmlNodeType.Element, "appSettings", ""); node.AppendChild(node2); XmlElement newChild = document.CreateElement("add"); newChild.SetAttribute("key", AppKey); newChild.SetAttribute("value", AppValue); node2.AppendChild(newChild); document.Save(System.AppDomain.CurrentDomain.BaseDirectory + "LrcSet.xml"); } }}下面是画歌词的处理类[现在自己都看不懂当初是如何实现的了，贴在这里吧。]:
说一说主要的思想：
画歌词的面板一定要继承UserControl类，然后重写其protected override void OnPaint(PaintEventArgs pe)方法，实现双缓冲，在这里面画歌词。
画卡拉OK歌词的原理是：先画背景[底层]，再画你要显示的所有歌词[中间层]，每行歌词都是顺序向下的，中间有间距，然后再你画好的歌词上面，画卡拉OK歌词，也就是高亮显示的那一行歌词[最上层]，这一行歌词会覆盖之前画的中间层歌词的那一行，当然这样它还不是卡拉OK显示的，卡拉OK显示就要取出当前这句歌词和下一句歌词之间的时间，然后从左至右，匀速的画上高亮显示的这一行，看起来就是卡拉OK显示出来了。像酷狗这种歌词是经过精准处理的。
桌面歌词就很简单了，主要是一个无标题的窗体，做上鼠标移动事件即可拖动，单行，双行歌词也只不过是多了一层判断。双行就是每次唱完一句就取出下一句画在面板上。单行就是唱一句画一句。
using System;using System.Collections.Generic;using System.ComponentModel;using System.Drawing;using System.Data;using System.Linq;using System.Text;using System.Windows.Forms;using System.Drawing.Text;using System.Drawing.Drawing2D;using System.IO;using System.Runtime.Serialization.Formatters.Binary;using System.Collections;using LrcCollection;namespace MediaPlayer{ public partial class DeskLrcControl : UserControl { public DeskLrcControl() { InitializeComponent(); Size1(this.Size); Components(); this.DoubleBuffered = true; } #region 字段 public LrcPanel lrcPanel = null; private ArrayList lrcConfig = new ArrayList(); int width = 0; Bitmap imgBack; Bitmap imgLrc; int middleTime = 0; public string currentPosition = null; int minute; int second; public Dictionary<int, string> lrcSortedList = new Dictionary<int, string>();//用来保存歌词和时间排序后的集合 private SolidBrush backBrush; private SolidBrush lightBrush; private Color backColor; private Font fontStyle; private StringFormat stringFormatter; [Description("普通歌词颜色"), Category("歌词样式设置")] public SolidBrush BackBrush { get { return backBrush; } set { backBrush = value; } } [Description("高亮歌词颜色"), Category("歌词样式设置")] public SolidBrush LightBrush { get { return lightBrush; } set { lightBrush = value; } } [Description("歌词背景颜色"), Category("歌词样式设置")] public Color BackColors { get { return backColor; } set { backColor = value; } } [Description("当前歌曲时间"), Category("歌词样式设置")] public string CurrentPosition { get { return currentPosition; } set { currentPosition = value; } } [Description("歌词字体样式"), Category("歌词样式设置")] public Font FontSty { get { return fontStyle; } set { fontStyle = value; } } [Description("歌词字体排序"), Category("歌词样式设置")] public StringFormat StringFormatter { get { return stringFormatter; } set { stringFormatter = value; } } public override Color BackColor { get { return backColor; } set { base.BackColor = value; } } public void Size1(Size s) { if (imgBack != null) { imgBack.Dispose(); } if (imgLrc != null) { imgLrc.Dispose(); } imgBack = new Bitmap(s.Width, s.Height); imgLrc = new Bitmap(s.Width, s.Height); //maxWidth = 0; //lrcSortedList.Clear(); //Graphics g = Graphics.FromHwnd(this.contextMenuStrip1.Handle); //for (int i = 0; i < tempTime.Length; i++) //{ // if (i + 1 < tempTime.Length) // { // if (g.MeasureString(lrcList.ElementAt(i).Value, fontStyle).Width > maxWidth) // { // maxWidth = (int)g.MeasureString(lrcList.ElementAt(i).Value, fontStyle).Width; // } // } // lrcSortedList.Add(tempTime[i], lrcList[tempTime[i]]); //} //g.Dispose(); //imgBack = new Bitmap(maxWidth + 2, this.Height); //imgLrc = new Bitmap(maxWidth + 2, this.Height); //this.Refresh(); } public override Size MinimumSize { get { return new Size(200, 20); } set { base.MinimumSize = value; } } #endregion protected override void OnPaint(PaintEventArgs pe) { if (currentPosition != null) { if (load == false) { Components(); load = true; } DrawString(currentPosition, pe.Graphics, BackBrush, LightBrush, this.fontStyle, this.BackColor, stringFormatter); pe.Dispose(); } } bool load = false; #region //初始化 public void Components() { try { backBrush = new SolidBrush(Color.FromArgb(Convert.ToInt32(Config.GetValue("DeskNormalColor")))); lightBrush = new SolidBrush(Color.FromArgb(Convert.ToInt32(Config.GetValue("DeskLightColor")))); backColor = Color.FromArgb(Convert.ToInt32(Config.GetValue("DeskBackColor"))); FontStyle f = FontStyle.Regular; if (Config.GetValue("DeskFontStyle") == "bold") { f = FontStyle.Bold; } else if (Config.GetValue("DeskFontStyle") == "italic") { f = FontStyle.Italic; } else if (Config.GetValue("DeskFontStyle") == "strikeout") { f = FontStyle.Strikeout; } else if (Config.GetValue("DeskFontStyle") == "underline") { f = FontStyle.Underline; } else { f = FontStyle.Regular; } fontStyle = new Font(Config.GetValue("DeskFontFamily"), float.Parse(Config.GetValue("DeskFontSize")),f); if (Config.GetValue("DeskIsDoubleline") != null) { isDoubleLine = Convert.ToBoolean(Config.GetValue("DeskIsDoubleline")); } stringFormatter = new StringFormat(); stringFormatter.Alignment = StringAlignment.Center; stringFormatter.LineAlignment = StringAlignment.Center; stringFormatter.Trimming = StringTrimming.Character; } catch { backBrush = new SolidBrush(Color.Blue); lightBrush = new SolidBrush(Color.Red); backColor = Color.Black; fontStyle = new Font("幼圆", 34f); stringFormatter = new StringFormat(); stringFormatter.Alignment = StringAlignment.Center; stringFormatter.LineAlignment = StringAlignment.Center; stringFormatter.Trimming = StringTrimming.Character; } } #endregion #region 画歌词 public bool isKana = true; public bool isTranKey = true; public bool isDoubleLine = true; SizeF imgSize = SizeF.Empty; SizeF img1 = SizeF.Empty; public string DrawString(string nowTime, Graphics g, SolidBrush backBrush, SolidBrush lightBrush, Font f, Color backColor, StringFormat format) { if (isTranKey == true) { this.BackColors = Color.Transparent; this.FindForm().BackColor = Color.Turquoise; this.FindForm().TransparencyKey = Color.Turquoise; } if (lrcSortedList.Count > 0 && LrcConnections.lrcPath != null) { Size1(this.FindForm().Size);//歌词居中 imgLrc = DrawLrcImg(nowTime, lightBrush, backBrush, f, backColor, format); if (isKana == true) { imgBack = ShowLrc(backBrush, f, backColor, format);//画背景歌词 g.CompositingQuality = CompositingQuality.HighQuality; g.SmoothingMode = SmoothingMode.AntiAlias; g.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit; if (imgLrc != null && imgBack != null) { Rectangle rec = new Rectangle(0, 0, width, this.imgLrc.Height); g.DrawImage(imgBack, 0, 0); //画当前高亮显示的歌词，其实就是画歌词图像的一部分，以像素显示会呈现卡拉OK歌词 g.DrawImage(imgLrc, 0, 0, rec, GraphicsUnit.Pixel); //g.Flush(); } } else if (imgLrc != null) { g.DrawImage(imgLrc, 0, 0); //g.Flush(); } } else { if (LrcConnections.lrcPath == null) { Graphics gg = Graphics.FromImage(imgBack); gg.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit; gg.CompositingQuality = CompositingQuality.HighQuality; gg.SmoothingMode = SmoothingMode.AntiAlias; SizeF imgSize = gg.MeasureString("对不起,没有找到歌词,您可以手动指定歌词", f);//当前歌词长度 this.FindForm().Size = new Size((int)imgSize.Width, (int)imgSize.Height); Size1(this.Size); gg.Dispose(); gg = Graphics.FromImage(imgBack); gg.DrawString("对不起,没有找到歌词,您可以手动指定歌词", f, backBrush, 0, 0); gg.Dispose(); g.DrawImage(imgBack, 0, 0); } } return null; } #endregion #region 显示高亮歌词的方法 private Bitmap DrawLrcImg(string currentTime, SolidBrush lightBrush, SolidBrush backBrush, Font f, Color backColor, StringFormat format) { if (currentTime == "" || currentTime == null) { return null; } if (imgLrc == null) { return null; } Graphics gra = Graphics.FromImage(imgLrc); gra.Clear(backColor); minute = Convert.ToInt32(currentTime.Substring(0, 2)) * 60;//分钟转为秒 second = Convert.ToInt32(currentTime.Substring(3)); for (int i = 0; i < lrcSortedList.Count - 1; i++) { if (lrcSortedList.ElementAt(i).Key == (minute + second))//高亮显示当前歌词 { //float lrcWidth = g.MeasureString(lrcSortedList.ElementAt(i).Value, f).Width; UserHelper.currentLrcIndex = i; width = 0; break; } } if ((UserHelper.currentLrcIndex + 1) <= lrcSortedList.Count) { middleTime = lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Key - lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Key; } imgSize = gra.MeasureString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f);//当前歌词长度 if (isDoubleLine == false) { this.FindForm().Size = new Size((int)imgSize.Width, (int)imgSize.Height); Size1(this.Size); } else//如果是双行的话 { if (UserHelper.currentLrcIndex < lrcSortedList.Count - 1) { img1 = gra.MeasureString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Value, f); } if (imgSize.Width > img1.Width) { this.FindForm().Size = new Size((int)imgSize.Width, (int)imgSize.Height * 2); Size1(this.Size); } else { this.FindForm().Size = new Size((int)img1.Width, (int)img1.Height * 2); Size1(this.Size); } gra.Dispose(); } if (width == 0) { width++; } else { width += (int)(imgSize.Width / (middleTime * 6));//歌词匀速以卡拉OK形式前进,毫秒化为秒 } Graphics g = Graphics.FromImage(imgLrc); g.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit; g.CompositingQuality = CompositingQuality.HighQuality; g.SmoothingMode = SmoothingMode.AntiAlias; if (isDoubleLine == false) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, lightBrush, 0, 0); } else { if (UserHelper.currentLrcIndex % 2 == 0) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, lightBrush, 0, 0); if (UserHelper.currentLrcIndex < lrcSortedList.Count - 1) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Value, f, backBrush, 0, f.Height); } } else { if (UserHelper.currentLrcIndex < lrcSortedList.Count - 1) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Value, f, backBrush, 0, 0); } g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, lightBrush, 0, f.Height); } } //g.Flush(); g.Dispose(); return imgLrc; } #endregion #region 显示背景歌词的方法 public Bitmap ShowLrc(SolidBrush backBrush, Font f, Color backColor, StringFormat format) { Graphics gra = Graphics.FromImage(imgBack); gra.Clear(backColor); //Font f1 = new Font(f.FontFamily, f.Size + 0.2f, FontStyle.Regular); //for (int index = 0; index < lrcSortedList.Count - 1; index++) //{ // Graphics g = Graphics.FromImage(imgBack); // g.SmoothingMode = SmoothingMode.AntiAlias; // g.DrawString(lrcSortedList.ElementAt(index).Value, f1, new SolidBrush(Color.Blue), this.imgBack.Width / 2, f.Height * (index + space + 1 + lines), format); // g.Dispose(); //} //f1.Dispose(); //显示歌词 Graphics g = Graphics.FromImage(imgBack); g.TextRenderingHint = TextRenderingHint.SingleBitPerPixelGridFit; g.CompositingQuality = CompositingQuality.HighQuality; g.SmoothingMode = SmoothingMode.AntiAlias; if (isDoubleLine == false) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, backBrush, 0, 0); } else { if (UserHelper.currentLrcIndex % 2 == 0) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, backBrush, 0, 0); if (UserHelper.currentLrcIndex < lrcSortedList.Count - 1) { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Value, f, backBrush, 0, f.Height); } } else { g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex + 1).Value, f, backBrush, 0, 0); g.DrawString(lrcSortedList.ElementAt(UserHelper.currentLrcIndex).Value, f, backBrush, 0, f.Height); } } //g.Flush(); g.Dispose(); return imgBack; } #endregion }}歌词繁简转换也很容易：
/// <summary> /// 简体到繁体转换 /// </summary> /// <param name="simplifiedChinese">简体</param> /// <returns>繁体</returns> private string SimplifiedToTraditional(string simplifiedChinese) { string traditionalChinese = string.Empty; System.Globalization.CultureInfo vCultureInfo = new System.Globalization.CultureInfo("zh-CN", false); traditionalChinese = Microsoft.VisualBasic.Strings.StrConv(simplifiedChinese, Microsoft.VisualBasic.VbStrConv.TraditionalChinese, vCultureInfo.LCID); return traditionalChinese; } /// <summary> /// 繁体到简体转换 /// </summary> /// <param name="traditionalChinese">繁体</param> /// <returns>简体</returns> private string TraditionalToSimplified(string traditionalChinese) { string simplifiedChinese = string.Empty; System.Globalization.CultureInfo vCultureInfo = new System.Globalization.CultureInfo("zh-CN", false); simplifiedChinese = Microsoft.VisualBasic.Strings.StrConv(traditionalChinese, Microsoft.VisualBasic.VbStrConv.SimplifiedChinese, vCultureInfo.LCID); return simplifiedChinese; }歌词窗体出现时是动态显示的，以及全局快捷键的[当时只知道使用系统的user32.dll实现的]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.Threading;using System.Runtime.InteropServices;using System.Collections;using System.IO;using System.Runtime.Serialization.Formatters.Binary;namespace MediaPlayer{ public partial class LrcFrm : Form { public AxWMPLib.AxWindowsMediaPlayer axWmplayer; public System.Windows.Forms.Timer timer; //动画窗体调用 [System.Runtime.InteropServices.DllImport("user32")] private static extern bool AnimateWindow(IntPtr hwnd, int dwTime, int dwFlags); const int AW_HOR_POSITIVE = 0x0002; const int AW_HOR_NEGATIVE = 0x0004; const int AW_VER_POSITIVE = 0x0008; const int AW_VER_NEGATIVE = 0x00016; const int AW_CENTER = 0x0010; const int AW_HIDE = 0x10000; const int AW_ACTIVATE = 0x20000; const int AW_SLIDE = 0x20000; const int AW_BLEND = 0x80000; public LrcFrm(AxWMPLib.AxWindowsMediaPlayer axWmplayer,System.Windows.Forms.Timer timer) { InitializeComponent(); this.DoubleBuffered = true; LrcConnections.lrcfrm = this; LrcConnections.lrcPanel = this.lrcPanel1; this.axWmplayer = axWmplayer; this.timer = timer; } #region 字段 public override Size MinimumSize { get { return new Size(100, 100); } set { base.MinimumSize = value; } } #endregion #region //注册热键 [DllImport("user32.dll", SetLastError = true)] public static extern bool RegisterHotKey( IntPtr hWnd, // handle to window int id, // hot key identifier KeyModifiers fsModifiers, // key-modifier options System.Windows.Forms.Keys vk // virtual-key code ); [DllImport("user32.dll", SetLastError = true)] public static extern bool UnregisterHotKey( IntPtr hWnd, // handle to window int id // hot key identifier ); [Flags] public enum KeyModifiers { None = 0, Alt = 1, Control = 2, Shift = 4, Windows = 8 } private const int WM_HOTKEY = 0x312; //窗口消息-热键 private const int WM_CREATE = 0x1; //窗口消息-创建 private const int WM_DESTROY = 0x2; //窗口消息-销毁 private const int MOD_ALT = 0x1; //ALT private const int MOD_CONTROL = 0x2; //CTRL private const int MOD_SHIFT = 0x4; //SHIFT private const int VK_SPACE = 0x20; //SPACE protected override void WndProc(ref Message m) { //base.WndProc(ref m); switch (m.Msg) { case WM_HOTKEY: //窗口消息-热键 switch (m.WParam.ToString()) { case "1989": this.lrcPanel1.showFullScreen(); break; case "11": //热键ID this.lrcPanel1.KanaOK(); break; case "12": this.lrcPanel1.showLrcSetFrm(); break; case "13": this.lrcPanel1.showLrc(); break; case "14": this.lrcPanel1.showFullScreen(); break; case "15": //热键ID Helper.main.PlayNext(); break; case "16": Helper.main.playPre(); break; //case "17": // this.lrcPanel1.showLrc(); // break; //case "18": // this.lrcPanel1.showFullScreen(); // break; default: break; } break; case WM_CREATE: //窗口消息-创建 RegisterHotKey(this.Handle, 1989, KeyModifiers.None, Keys.Escape); RegisterHotKey(this.Handle, 11, KeyModifiers.Control | KeyModifiers.Alt, Keys.K); RegisterHotKey(this.Handle, 12, KeyModifiers.Control | KeyModifiers.Alt, Keys.G); RegisterHotKey(this.Handle, 13, KeyModifiers.Control | KeyModifiers.Alt, Keys.D); RegisterHotKey(this.Handle, 14, KeyModifiers.Control | KeyModifiers.Alt, Keys.F); //播放控制 //下一首 RegisterHotKey(this.Handle, 15, KeyModifiers.Control | KeyModifiers.Alt, Keys.Right); //上一首 RegisterHotKey(this.Handle, 16, KeyModifiers.Control | KeyModifiers.Alt, Keys.Left); //音量加 // RegisterHotKey(this.Handle, 17, KeyModifiers.Control | KeyModifiers.Alt, Keys.Up); //音量减 // RegisterHotKey(this.Handle, 18, KeyModifiers.Control | KeyModifiers.Alt, Keys.Down); break; case WM_DESTROY: //窗口消息-销毁 UnregisterHotKey(this.Handle, 1989); UnregisterHotKey(this.Handle, 11); //销毁热键 UnregisterHotKey(this.Handle, 12); UnregisterHotKey(this.Handle, 13); UnregisterHotKey(this.Handle, 14); UnregisterHotKey(this.Handle, 15); UnregisterHotKey(this.Handle, 16); // UnregisterHotKey(this.Handle, 17); // UnregisterHotKey(this.Handle, 18); break; default: break; } base.WndProc(ref m); } #endregion private void LrcFrm_Load(object sender, EventArgs e) { Thread t = new Thread(loadLrc); t.IsBackground = true; t.Start(); //动画由小渐大,现在取消 AnimateWindow(this.Handle, 2000, AW_CENTER | AW_ACTIVATE); } private void loadLrc() { int i = 0; while (LrcConnections.isReading == true) { Thread.Sleep(1000); i++; if (LrcConnections.isReading == false || i == 5) { break; } } if (LrcConnections.isReading == false) { this.lrcPanel1.lrcSortedList = LrcConnections.lrcSortedList; } Thread.CurrentThread.Abort(); } #region//改变窗体大小时 歌词面板改变 private void LrcFrm_Resize(object sender, EventArgs e) { this.lrcPanel1.Size1(this.Size);//歌词居中 this.lrcPanel1.ChangeSize(); } #endregion private void LrcFrm_FormClosing(object sender, FormClosingEventArgs e) { this.Visible = false; e.Cancel = true; //存储当前状态 } }}如果你想单独试试双缓冲，可以试试这个，你可以拿它和没有使用双缓冲的timer比较下：
using System;using System.Collections.Generic;using System.ComponentModel;using System.Drawing;using System.Data;using System.Linq;using System.Text;using System.Windows.Forms;namespace MediaPlayer{ public partial class myLabel : UserControl { public myLabel() { InitializeComponent(); Timer t = new Timer(); this.DoubleBuffered = true; t.Interval = 1000; t.Tick += new EventHandler(t_Tick); t.Enabled = true; } protected override void OnPaint(PaintEventArgs pe) { Draw(pe.Graphics); pe.Dispose(); } //程序人生 人生如戏 戏如人生 却不能游戏人生 void t_Tick(object sender, EventArgs e) { this.Refresh(); } private void Draw(Graphics g) { g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias; Font f = new Font("华文行楷", 35F, FontStyle.Italic); SolidBrush fontB = new SolidBrush(Color.Gray); SolidBrush fontA = new SolidBrush(Color.Red); //先画阴影，坐标偏移5 g.DrawString("程序", f, fontB, 15, 30); g.DrawString("人生", f, fontB, 15, this.Size.Height / 2 + 15); //再画字体 g.DrawString("程序", f, fontA, 0, 15); g.DrawString("人生", f, fontA, 0, this.Size.Height / 2); } //Font f1 = new Font("幼圆", 15F, FontStyle.Regular); //SolidBrush fontC = new SolidBrush(Color.LightGray); //for (int i = 0; i <= 360; i += 60) //{ // //平移Graphics对象到窗体中心 // g.TranslateTransform(this.Width / 2, this.Height / 2); // //设置Graphics对象的输出角度 // g.RotateTransform(i); // //设置文字填充颜色 // //旋转显示文字 // g.DrawString("土豆水印", f1, fontC, 10, 10); // //恢复全局变换矩阵 // g.ResetTransform(); //} }}搜索歌词的方法，一种很笨的方法：
string song = null; List<int> songIndex = new List<int>(); private void btnFind_Click(object sender, EventArgs e) { if (song != null && song != txtSong.Text.Trim()) { songIndex.Clear(); song = txtSong.Text.Trim(); } else if (song == null) { song = txtSong.Text.Trim(); } if (song != null && song != "") { for (int flag = 0; flag < lbPlayerList.Items.Count; flag++) { if (songIndex.Contains(flag)) { continue; } if (lbPlayerList.Items[flag].ToString().Contains(txtSong.Text.Trim())) { songIndex.Add(flag); lbPlayerList.SelectedIndex = flag; break; } else { //如果到了末尾，清空集合。下次从新开始 if (flag == lbPlayerList.Items.Count - 1) { MessageBox.Show("已经到了末尾..."); songIndex.Clear(); } } } } }如果你看到了关于窗体，你可能找不到上面显示的文字从哪来，事实上里面有2个dll文件，它描述的版本，作者，制作时间等信息，只有用特性和反射机制才可能读出来。
特性：
using System;using System.Collections.Generic;using System.Linq;using System.Text;using AttributeTudou;namespace AttributeReflection{ /// <summary> /// 特性，更新版本时可用反射读取此程序的信息 /// /// 作者，创建时间，最后修改时间，公司名称，产品名称，版本，声明 /// </summary> [AttibuteTuDou("很拽の土豆", "2009年12月", "2011年2月", "土豆工作室", "雅风随风", "1.0.0", "CopyRight 2011 很拽の土豆 All Rights Reserved", "以上一切信息版权归原作者所有\r\n\r\n郑重声明:版权所有,翻版不究\r\n\r\n\r\t\r\t2009.12\r\t很拽の土豆\r\nQQ：475589699\r\n邮箱：yaerfeng1989@163.com")] public class Tudou { }}using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace AttributeTudou{ [AttributeUsage(AttributeTargets.All, AllowMultiple = true)]//允许多个访问，可以对任何应用程序的元素应用此特性 public class AttibuteTuDou : Attribute { public AttibuteTuDou() { } public AttibuteTuDou(string author,string createDate,string lastUpDate,string comp,string producter,string version,string copyRight,string otherDesc) { this.Author = author; this.CreateDate = createDate; this.LastUpTime = lastUpDate; this.Company = comp; this.Producter = producter; this.Version = version; this.CopyRight = copyRight; this.OtherDesc =otherDesc; } private string author; public string Author { get { return author; } set { author = value; } } private string createDate; public string CreateDate { get { return createDate; } set { createDate = value; } } private string lastUpTime; public string LastUpTime { get { return lastUpTime; } set { lastUpTime = value; } } private string version; public string Version { get { return version; } set { version = value; } } private string company; public string Company { get { return company; } set { company = value; } } private string producter; public string Producter { get { return producter; } set { producter = value; } } private string otherDesc; public string OtherDesc { get { return otherDesc; } set { otherDesc = value; } } private string copyRight; public string CopyRight { get { return copyRight; } set { copyRight = value; } } }}如何读取：
如果你眼睛好，你会发现这里面还有2个方法
1个是用记事本打开歌词的，1个是定位文件[给一个路经它，它会自动在电脑上帮你定位这个文件]的。前者可能简单，但后者却更实用。
实现方法分别为：
System.Diagnostics.Process.Start("NOTEPAD.EXE", 文本的路径);
System.Diagnostics.Process.Start("explorer.exe", "/select," + 文本的路径);
整体代码如下：
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.Runtime.Serialization.Formatters.Binary;using LrcCollection;using AttributeTudou;using System.Reflection;namespace MediaPlayer{ public partial class LrcSetFrm : Form { //private Font fontStyle; private Color normalColor; private Color lightColor; private Color backColor; private LrcPanel lrcPanel; public LrcSetFrm(LrcPanel lrcPanel) { InitializeComponent(); this.lrcPanel = lrcPanel; tudou = AssemblyTitle; this.Text = String.Format("关于 {0}", AssemblyProduct); this.labelProductName.Text = AssemblyProduct; this.labelVersion.Text = String.Format("版本 {0}", AssemblyVersion); this.labelCopyright.Text = AssemblyCopyright; this.labelCompanyName.Text = AssemblyCompany; this.textBoxDescription.Text = AssemblyDescription; } private void btnOpenLrc_Click(object sender, EventArgs e) { if (txtPath.Text.Trim() != "" && txtPath.Text.Trim() != null) { if (File.Exists(txtPath.Text)) { System.Diagnostics.Process.Start("NOTEPAD.EXE", txtPath.Text); } else { MessageBox.Show("对不起，不存在该文件！"); } } } private void btnOpenLrcFile_Click(object sender, EventArgs e) { if (textBox1.Text.Trim() != "" && textBox1.Text.Trim() != null) { if (Directory.Exists(textBox1.Text)) { System.Diagnostics.Process.Start("explorer.exe", "/select," + textBox1.Text); } else { MessageBox.Show("对不起，不存在该文件夹,请重新指定文件夹！"); } } } AttibuteTuDou tudou = null; #region 程序集属性访问器 public AttibuteTuDou AssemblyTitle { get { Assembly ass = Assembly.Load("AttributeReflection"); Type[] t = ass.GetTypes(); foreach (Type type in t) { Attribute[] attributes = Attribute.GetCustomAttributes(type); if (attributes.Length > 0) { foreach (Attribute a in attributes) { tudou = (AttibuteTuDou)a; return tudou; } } } return null; } } public string AssemblyVersion { get { if (tudou != null) { return tudou.Version; } return "1.0.0"; } } public string AssemblyDescription { get { if (tudou != null) { return tudou.OtherDesc; } return "支持作者 支持原创"; } } public string AssemblyProduct { get { if (tudou != null) { return tudou.Producter; } return "土豆作品"; } } public string AssemblyCopyright { get { if (tudou != null) { return tudou.CopyRight; } return "CopyRights € 2010"; } } public string AssemblyCompany { get { if (tudou != null) { return tudou.Company; } return "土豆工作室"; } } public string CreateDate { get { if (tudou != null) { return tudou.CreateDate; } return null; } } public string LastUpDate { get { if (tudou != null) { return tudou.LastUpTime; } return null; } } public string author { get { if (tudou != null) { return tudou.Author; } return "很拽の土豆"; } } #endregion private void btnDel_Click(object sender, EventArgs e) { if (this.txtPath.Text != null) { FileInfo f = new FileInfo(this.txtPath.Text); if (f.Exists) { if (MessageBox.Show("确认永久删除歌词" + f.FullName + "?","警告",MessageBoxButtons.OKCancel,MessageBoxIcon.Warning) == DialogResult.OK) { f.Delete(); } } } } }}想想曾经为做这个付出的心血，不得不自己苦笑一下，兴趣吧，也许只是因为曾经的兴趣，有机会，我会再研究一下C#的。等我快老了吧。
一个非常简单的东西我却会用到高级特性，反射，系统热键注册，双缓冲，也许是因为有了需求，才有了结果吧。
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