1 using System.Runtime.InteropServices; 2 using System; 3 namespace Common 4 { 5     public class MP3Player 6     { 7         /// <summary>    8 /// 文件地址   9 /// </summary>10         public string FilePath;11         /// <summary>   12 /// 播放音乐  13 /// </summary>14         public void Play()15         {16             string tmepstr="";17             tmepstr = tmepstr.PadLeft(128, Convert.ToChar(" "));18             mciSendString("close all", "", 0, 0);19             mciSendString("open " + FilePath + " alias media", tmepstr, tmepstr.Length, 0);                     mciSendString("play media", "", 0, 0);            20         }21 22         /// <summary>   23 /// 暂停  24 /// </summary>25         public void Pause()26         {27             mciSendString("pause media", "", 0, 0);28         }29 30         /// <summary>   31 /// 停止  32 /// </summary>33         public void Stop()34         {35             mciSendString("close media", "", 0, 0);36         }37     /// <summary>   38 /// 继续播放  39 /// </summary>40         public void Resume()41         {42             string TemStr = "";43             TemStr = TemStr.PadLeft(128, Convert.ToChar(" "));44             mciSendString("resume media", TemStr, TemStr.Length, 0);45         }46 47 //获取音乐长度48         public int GetMusicLength49         {50             get51             {52                string durLength = "";53                 durLength = durLength.PadLeft(128, Convert.ToChar(" "));54                 mciSendString("status media length", durLength, durLength.Length, 0);55                 durLength = durLength.Trim();56                 if (durLength == "" || durLength == "\0") return 0;57                 return (int)(Convert.ToDouble(durLength));58             }59         }60         /// <summary>   61 /// API函数  62 /// </summary>63         [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]64         private static extern int mciSendString(65          string lpstrCommand,66          string lpstrReturnString,67          int uReturnLength,68          int hwndCallback69         );70     }71 }

[DllImport("kernel32.dll ", CharSet = CharSet.Auto)]public static extern int GetShortPathName([MarshalAs(UnmanagedType.LPTStr)] string path,[MarshalAs(UnmanagedType.LPTStr)] StringBuilder shortPath,int shortPathLength);StringBuilder shortMusicPath = new StringBuilder(80);int result = GetShortPathName(mymp3list[0], shortMusicPath, shortMusicPath.Capacity);string s = shortMusicPath.ToString();