c# 文字朗读

  private static  dynamic _comTts;
            Type type = Type.GetTypeFromProgID("SAPI.SpVoice");
        private void Read(string text)
        {
            Task.Factory.StartNew(() =>
            {
                try
                {
                    _comTts = Activator.CreateInstance(type);
                    _comTts.Speak(text);
                }
                catch{}
            });

        }