如何实现语音和朗诵的功能：

using System;

using System.Windows.Forms; using System.IO; using System.Media; using System.Runtime.InteropServices;

namespace 播放TTS

{     public partial class Form1 : Form     {         public Form1()         {             InitializeComponent();         }         //根目录         string address = System.AppDomain.CurrentDomain.BaseDirectory;         private void btnPlay_Click(object sender, EventArgs e)         {                          foreach (string s in textBox1.Text.Split(' '))             {                 //string wavFile = @".\Video" + s + ".wav";                 string wavFile = " + s.ToLower() + ".wav";                 if (File.Exists(wavFile))                 {                     SoundPlayer sp = new SoundPlayer(wavFile);                     sp.PlaySync();                 }             }         }         [DllImport("winmm.dll", EntryPoint = "mciSendString", CharSet = CharSet.Auto)]         private static extern int mciSendString(          string lpstrCommand,          string lpstrReturnString,          int uReturnLength,          int hwndCallback         );

        private static void mciSendString(String cmd)

        {             mciSendString(cmd, "", 0, 0);         }

        private static void StartRecord()

        {             mciSendString("close movie");             mciSendString("open new type WAVEAudio alias movie");             mciSendString("record movie");         }

        private static void StopRecord(string filename)

        {             mciSendString("stop movie");             mciSendString("save movie " + filename);             mciSendString("close movie");         }

        //开始录音

        private void btnBegin_Click(object sender, EventArgs e)         {             StartRecord();         }

        private void btnStop_Click(object sender, EventArgs e)

        {             string title = ttbTitle.Text;             string saveAddress = address + @"\Video\" + title.ToLower() + ".wav";             if (File.Exists(saveAddress))             {                 MessageBox.Show("文件已存在，重命名");             }             else             {                 StopRecord(saveAddress);                 MessageBox.Show("录音完毕");             }                                   }

    }

}