C#将文字读出来

调用系统的扬声器，将输入的文字读出来

    private void btnYuYingBaoDu_Click(object sender, EventArgs e)
    {
        string str = rtxtzhongwen.Text;
        if (str != "")
        {
            SpeechSynthesizer sp = new SpeechSynthesizer();
            sp.SpeakAsync(str);
        }
        else
        {
            MessageBox.Show("请输入一段内容~", "提示:");
        }
    }

…
添加引用
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework.NETFramework\v4.5.2\System.Speech.dll
在C盘中可以找到