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Windows有文字转语音功能，C#提供了调用的类库Interop.SpeechLib.dll

使用方法很简单，在你的项目中添加Interop.SpeechLib.dll引用，在类中引用：

using SpeechLib;

这里提供一个CVoice类 帮助实现语音播报

 public class CVoice{private static Speach mysp = Speach.instance();private static SoundPlayer _voiceplayer = new SoundPlayer();private static Thread threadplay;private static string _sound;public static string SoundfileName{get { return _sound; }}private static string _soundtext;public static string SoundText{get { return CVoice._soundtext; }}public static void Playfile(string soundfile){_sound = soundfile;threadplay = new Thread(mysoundplay);threadplay.Start();}public static void Play(string soundtext){try{_soundtext = soundtext.Replace("重", "虫");  //解决都“zhong”的问题mysp.AnalyseSpeak(soundtext);}catch{}}public static void RePlay() //播放最后一次的语音{mysp.AnalyseSpeak(_soundtext);}public static void Pause() //播放最后一次的语音{mysp.Pause();}public static void Continue() //播放最后一次的语音{mysp.Continue();}public static void Stop(){//if (threadplay.ThreadState == ThreadState.Running)//{//    threadplay.Abort();//}mysp.Stop();}private static void mysoundplay(){try{_voiceplayer.SoundLocation = _sound;_voiceplayer.Play();}catch{}}public static Speach Speech{get{return mysp;}}}public class Speach{private static Speach _Instance = null;private SpeechLib.SpVoiceClass voice = null;private Speach(){BuildSpeach();}public static Speach instance(){if (_Instance == null)_Instance = new Speach();return _Instance;}public void SelectVoice(int index){try{voice.Voice = voice.GetVoices("", "").Item(index);}catch{}}private void BuildSpeach(){if (voice == null) voice = new SpVoiceClass();SelectVoice(0);}public int Volume{get{return voice.Volume;}set{voice.SetVolume((ushort)(value));}}public int Rate{get{return voice.Rate;}set{voice.SetRate(value);}}private void Speak(string strSpeack){try{int nn = voice.Speak(strSpeack.Replace("重", "虫"), SpeechLib.SpeechVoiceSpeakFlags.SVSFlagsAsync);Console.WriteLine(nn);}catch (Exception err){throw (new Exception("发生一个错误：" + err.Message));}}public void AnalyseSpeak(string strSpeak){Speak(strSpeak);}public void Stop(){voice.Speak(string.Empty, SpeechLib.SpeechVoiceSpeakFlags.SVSFPurgeBeforeSpeak);}public void Pause(){voice.Pause();}public void Continue(){voice.Resume();}}在需要的地方只需要CVoice.Play（“语音播报内容”）；
需要dll文件的私聊我！