public static class StringExtension

{

    #region unicode 字符转义

    /// <summary>

    /// 转换输入字符串中的任何转义字符。如：Unicode 的中文 \u8be5

    /// </summary>

    /// <param name="str"></param>

    /// <returns></returns>

    public static string UnicodeDencode(this string str)

    {

        if (string.IsNullOrWhiteSpace(str))

            return str;

        return Regex.Unescape(str);

    }

    /// <summary>

    /// 将字符串进行 unicode 编码

    /// </summary>

    /// <param name="str"></param>

    /// <returns></returns>

    public static string UnicodeEncode(this string str)

    {

        if (string.IsNullOrWhiteSpace(str))

            return str;

        StringBuilder strResult = new StringBuilder();

        if (!string.IsNullOrEmpty(str))

        {

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

            {

                strResult.Append("\\u");

                strResult.Append(((int)str[i]).ToString("x4"));

            }

        }

        return strResult.ToString();

    }

    #endregion

}