UNICODE字符转为中文

#region ConvertUnicodeStringToChinese
        //UNICODE字符转为中文 对这个方法做一点改进 使他支持中英混排
        public string ConvertUnicodeStringToChinese(string unicodeString)
        {
            if (string.IsNullOrEmpty(unicodeString))
                return string.Empty;

            string outStr = unicodeString;

            Regex re = new Regex("\\\\u[0123456789abcdef]{4}", RegexOptions.IgnoreCase);
            MatchCollection mc = re.Matches(unicodeString);
            foreach (Match ma in mc)
            {
                outStr = outStr.Replace(ma.Value, ConverUnicodeStringToChar(ma.Value).ToString());
            }
            return outStr;
        }

        private char ConverUnicodeStringToChar(string str)
        {
            char outStr = Char.MinValue;
            outStr = (char)int.Parse(str.Remove(0, 2), System.Globalization.NumberStyles.HexNumber);
            return outStr;
        }
        #endregion