“byte[] utf8Bytes  = System.Text.Encoding.UTF8.GetBytes    ("0123456789"); byte[] utf16Bytes = System.Text.Encoding.Unicode.GetBytes ("0123456789"); byte[] utf32Bytes = System.Text.Encoding.UTF32.GetBytes   ("0123456789"); Console.WriteLine (utf8Bytes.Length);    // 10 Console.WriteLine (utf16Bytes.Length);   // 20 Console.WriteLine (utf32Bytes.Length);   // 40”