字符串和Unicode互转

字符串转Unicode

/// <summary>
       /// <summary>
       /// 字符串转Unicode
       /// </summary>
       /// <param name="source">源字符串</param>
       /// <returns>Unicode编码后的字符串</returns>
       public static string StringUnicode(string source)
       {
           byte[] bytes = Encoding.Unicode.GetBytes(source);
           StringBuilder stringBuilder = new StringBuilder();
           for (int i = 0; i < bytes.Length; i += 2)
           {
               stringBuilder.AppendFormat("\\u{0}{1}", bytes[i + 1].ToString("x").PadLeft(2, '0'), bytes[i].ToString("x").PadLeft(2, '0'));
           }
           return stringBuilder.ToString();
       }

Unicode转字符串

/// <summary>
       /// Unicode转字符串
       /// </summary>
       /// <param name="source">经过Unicode编码的字符串</param>
       /// <returns>正常字符串</returns>
       public static string UnicodeString(string source)
       {
           return new Regex(@"\\u([0-9A-F]{4})", RegexOptions.IgnoreCase | RegexOptions.Compiled).Replace(
               source, x => string.Empty + Convert.ToChar(Convert.ToUInt16(x.Result("$1"), 16)));
       }