C#字符串转UNICODE

 public static string StringToUnicode(string s)//字符串转UNICODE代码
        {

            char[] charbuffers = s.ToCharArray();

            byte[] buffer;

            StringBuilder sb = new StringBuilder();

            for (int i = ; i < charbuffers.Length; i++)

            {

                buffer = System.Text.Encoding.Unicode.GetBytes(charbuffers[i].ToString());

                sb.Append(String.Format("\\u{0:X2}{1:X2}", buffer[], buffer[]));

            }

            return sb.ToString();

        }