/// <summary>

     /// 转换扩展类

     /// </summary>

     public static class ConvertExtend

     {

         /// <summary>

         /// 将byte[]转换为16进制字符串

         /// </summary>

         /// <param name="bytes"></param>

         /// <returns></returns>

         public static string ToString16(this byte[] bytes)

         {

             return bytes.ToList().ToString16();

         }

         /// <summary>

         /// 将List<byte>转换为16进制字符串

         /// </summary>

         /// <param name="bytes"></param>

         /// <returns></returns>

         public static string ToString16(this List<byte> bytes)

         {

             return string.Join(" ", bytes.ConvertAll(b => Convert.ToString(b, )));

         }

         /// <summary>

         /// 将16进制字符串转换为byte[]

         /// </summary>

         /// <param name="str16"></param>

         /// <returns></returns>

         public static byte[] ToByte(this string str16)

         {

             return str16.Split(' ').ToList().ConvertAll(s => Convert.ToByte(s, )).ToArray();

         }

     }