用于获取MP3内部信息，包括歌曲名，歌手名等……  namespace FileBatchRemaer.domain{    /// <summary>    /// Mp3信息结构     /// </summary>    public struct Mp3Info    {        public string identify;     //TAG，三个字节         public string Title;        //歌曲名,30个字节         public string Artist;       //歌手名,30个字节         public string Album;        //所属唱片,30个字节         public string Year;         //年,4个字符         public string Comment;      //注释,28个字节         public char reserved1;      //保留位，一个字节         public char reserved2;      //保留位，一个字节         public char reserved3;      //保留位，一个字节     }    /// <summary>    /// Mp3文件信息类    /// </summary>    public class Mp3FileInfo    {        Mp3Info info;        /// <summary>        /// 构造函数,输入文件名即得到信息        /// </summary>        /// <param name="mp3FilePos"></param>        public Mp3FileInfo(String mp3FilePos)        {            info = getMp3Info(getLast128(mp3FilePos));        }        /// <summary>        /// 获取整理后的Mp3文件名,这里以标题和艺术家名定文件名        /// </summary>        /// <returns></returns>        public String GetOriginalName()        {            return formatString(info.Title.Trim()) + "-" + formatString(info.Artist.Trim());        }        /// <summary>        /// 去除\0字符        /// </summary>        /// <param name="str"></param>        /// <returns></returns>        private String formatString(String str)        {            return str.Replace("\0", "");        }        /// <summary>         /// 获取MP3文件最后128个字节         /// </summary>         /// <param name="FileName">文件名</param>         /// <returns>返回字节数组</returns>         private byte[] getLast128(string FileName)        {            FileStream fs = new FileStream(FileName, FileMode.Open, FileAccess.Read);            Stream stream = fs;            stream.Seek(-128, SeekOrigin.End);            const int seekPos = 128;            int rl = 0;            byte[] Info = new byte[seekPos];            rl = stream.Read(Info, 0, seekPos);            fs.Close();            stream.Close();            return Info;        }        /// <summary>         /// 获取MP3歌曲的相关信息         /// </summary>         /// <param name = "Info">从MP3文件中截取的二进制信息</param>         /// <returns>返回一个Mp3Info结构</returns>         private Mp3Info getMp3Info(byte[] Info)        {            Mp3Info mp3Info = new Mp3Info();            string str = null;            int i;            int position = 0;//循环的起始值             int currentIndex = 0;//Info的当前索引值             //获取TAG标识             for (i = currentIndex; i < currentIndex + 3; i++)            {                str = str + (char)Info[i];                position++;            }            currentIndex = position;            mp3Info.identify = str;            //获取歌名             str = null;            byte[] bytTitle = new byte[30];//将歌名部分读到一个单独的数组中             int j = 0;            for (i = currentIndex; i < currentIndex + 30; i++)            {                bytTitle[j] = Info[i];                position++;                j++;            }            currentIndex = position;            mp3Info.Title = this.byteToString(bytTitle);            //获取歌手名             str = null;            j = 0;            byte[] bytArtist = new byte[30];//将歌手名部分读到一个单独的数组中             for (i = currentIndex; i < currentIndex + 30; i++)            {                bytArtist[j] = Info[i];                position++;                j++;            }            currentIndex = position;            mp3Info.Artist = this.byteToString(bytArtist);             //获取唱片名             str = null;            j = 0;            byte[] bytAlbum = new byte[30];//将唱片名部分读到一个单独的数组中             for (i = currentIndex; i < currentIndex + 30; i++)            {                bytAlbum[j] = Info[i];                position++;                j++;            }            currentIndex = position;            mp3Info.Album = this.byteToString(bytAlbum);             //获取年             str = null;            j = 0;            byte[] bytYear = new byte[4];//将年部分读到一个单独的数组中             for (i = currentIndex; i < currentIndex + 4; i++)            {                bytYear[j] = Info[i];                position++;                j++;            }            currentIndex = position;            mp3Info.Year = this.byteToString(bytYear);            //获取注释             str = null;            j = 0;            byte[] bytComment = new byte[28];//将注释部分读到一个单独的数组中             for (i = currentIndex; i < currentIndex + 25; i++)            {                bytComment[j] = Info[i];                position++;                j++;            }            currentIndex = position;            mp3Info.Comment = this.byteToString(bytComment);            //以下获取保留位             mp3Info.reserved1 = (char)Info[++position];            mp3Info.reserved2 = (char)Info[++position];            mp3Info.reserved3 = (char)Info[++position];            return mp3Info;        }        /// <summary>        /// 将字节数组转换成字符串         /// </summary>         /// <param name = "b">字节数组</param>         /// <returns>返回转换后的字符串</returns>        private string byteToString(byte[] b)        {            Encoding enc = Encoding.GetEncoding("GB2312");            string str = enc.GetString(b);            str = str.Substring(0, str.IndexOf("#CONTENT#") >= 0 ? str.IndexOf("#CONTENT#") : str.Length);//去掉无用字符                         return str;        }    }}  wma:利用shell32获取信息：首先在项目中添加shell32.dll,在windows\system32\下面 1        public string[] getSongInfoFromWma(string FileName) 2        { 3            string[] wmaFileStruct = new string[3]; 4            MP3File mp3=new MP3File();  5            //create shell instance 6            Shell32.Shell shell  = new Shell32.ShellClass(); 7            //set the namespace to file path 8            Shell32.Folder folder = shell.NameSpace(FileName.Substring(0,FileName.LastIndexOf("\\"))); 9            //get ahandle to the file10            Shell32.FolderItem folderItem = folder.ParseName(FileName.Substring(FileName.LastIndexOf("\\")+1));11            //did we get a handle ?12            13            14            wmaFileStruct[0] = folder.GetDetailsOf(folderItem,10);  //歌曲名称15            wmaFileStruct[1] = folder.GetDetailsOf(folderItem,9);   //歌手名称16            wmaFileStruct[2] = folder.GetDetailsOf(folderItem,21);  //播放时间1718            return wmaFileStruct;19        }20