C#含Unicode的字符串转换问题

碰到传输问题，Java接口那边版本低，给的字符串里头包含特殊字符

(&frac12) == ½

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N上面加个波浪符号，只能进行特殊转换，直接对整个字符串进行Unicode转换

 

    /// <summary>
    /// Unicode字符串转换帮助类
    /// </summary>
    public class UniCodeHelper
    {
        /// <summary>
        /// 特殊字符String转Unicode
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string ToUnicodeString(string str)
        {
            StringBuilder strResult = new StringBuilder();
            if (!string.IsNullOrEmpty(str))
            {
                for (int i = 0; i < str.Length; i++)
                {
                    strResult.Append("\\u");
                    strResult.Append(((int)str[i]).ToString("x"));
                }
            }
            return strResult.ToString();
        }

        /// <summary>
        /// 含Unicode字符转String
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string FromUnicodeString(string str)
        {
            //最直接的方法Regex.Unescape(str);
            StringBuilder strResult = new StringBuilder();
            if (!string.IsNullOrEmpty(str))
            {
                string[] strlist = str.Replace("\\", "").Split('u');
                try
                {
                    for (int i = 1; i < strlist.Length; i++)
                    {
                        int charCode = Convert.ToInt32(strlist[i], 16);
                        strResult.Append((char)charCode);
                    }
                }
                catch (FormatException ex)
                {
                    return Regex.Unescape(str);
                }
            }
            return strResult.ToString();
        }
    }

 

 

感谢： https://blog.csdn.net/u011511086/article/details/72865006 

https://blog.csdn.net/cy_baicai/article/details/82897724