/// <summary>

        /// 播放声音文件

        /// </summary>

        /// <param name="FileName">文件全名</param>

        public void PlaySound(string FileName)

        {//要加载COM组件:Microsoft speech object Library

            if (!System.IO.File.Exists(FileName))

            {

                return;

            }

            SpeechLib.SpVoiceClass pp = new SpeechLib.SpVoiceClass();

            SpeechLib.SpFileStreamClass spFs = new SpeechLib.SpFileStreamClass();

            spFs.Open(FileName, SpeechLib.SpeechStreamFileMode.SSFMOpenForRead, true);

            SpeechLib.ISpeechBaseStream Istream = spFs as SpeechLib.ISpeechBaseStream;

            pp.SpeakStream(Istream, SpeechLib.SpeechVoiceSpeakFlags.SVSFIsFilename);

            spFs.Close();

        }