如何将Latin string转换为Cyrillic？

Question

我试图将标签从拉丁语打印到cyrilic，这些是我尝试了很多次但没有成功的方法，结果是：

System.Text.ASCIIEncoding: ????? ??????????
System.Text.UTF8Encoding: ИВÐÐÐ Ð’ÐСИЛЕВСКÐ
System.Text.UnicodeEncoding: ИВÐÐÐ Ð’ÐСИЛЕВСКÐ

我无法弄清楚我在这里做错了什么：

protected void Button1_Click(object sender, EventArgs e)
    {
        string path = @"c:\Kitchen\bar.xls";


        if (!File.Exists(path))
        {
            using (StreamWriter sw = File.CreateText(path))
            {
                string cyrillicText = "ЗДРАВО НА СИТЕ";
               string cyrillicText1 = "HELLO everyone";

                System.Text.ASCIIEncoding encodingASCII = new System.Text.ASCIIEncoding();
                System.Text.UTF8Encoding encodingUTF8 = new System.Text.UTF8Encoding();
                System.Text.UnicodeEncoding encodingUNICODE = new System.Text.UnicodeEncoding();

                byte[] textBytesASCII = encodingASCII.GetBytes(cyrillicText);
                byte[] textBytesUTF8 = encodingUTF8.GetBytes(cyrillicText);
                byte[] textBytesCyrillic =   encodingUNICODE.GetBytes(cyrillicText);
      byte[] textBytesCyrillic1 = encodingUNICODE.GetBytes(cyrillicText1);

                sw.WriteLine("{0}: {1}", encodingASCII.ToString(), encodingASCII.GetString(textBytesASCII));
                sw.WriteLine("{0}: {1}", encodingUTF8.ToString(), encodingUTF8.GetString(textBytesUTF8));
                sw.WriteLine("{0}: {1}", encodingUNICODE.ToString(), encodingUNICODE.GetString(textBytesCyrillic));
   sw.WriteLine("{0}: {1}", encodingUNICODE.ToString(), encodingUNICODE.GetString(textBytesCyrillic1));





                System.Text.Encoding iso_8859_2 = System.Text.Encoding.GetEncoding("windows-1251");
                System.Text.Encoding utf_8 = System.Text.Encoding.UTF8;

                NameValueCollection n = HttpUtility.ParseQueryString("RT=Може",iso_8859_2 );
                sw.Write(n["RT"]);

            }
        }
    }