public static string PrintHex(byte[] data, int rowLength)        {            if (rowLength % 2 == 1)                throw new ArgumentException("必须是偶数！");            var buffer = new StringBuilder();            string segmentNumber = "";            string bytes = "";            string ascii = "";            for (int i = 1; i <= data.Length; i++)            {                bytes += (data[i - 1].ToString("X2")) + " ";                if (data[i - 1] < 0x21 || data[i - 1] > 0x7e)                {                    ascii += ".";                }                else                {                    ascii += Encoding.ASCII.GetString(new byte[1] { data[i - 1] });                }                if (i % rowLength != 0 && i % (rowLength / 2) == 0)                {                    bytes += " ";                    ascii += " ";                }                if (i % rowLength == 0)                {                    segmentNumber = ((((i - rowLength) / rowLength) * rowLength).ToString("X4"));                    buffer.AppendLine(segmentNumber + "  " + bytes + "  " + ascii);                    bytes = "";                    ascii = "";                    continue;                }                if (i == data.Length)                {                    segmentNumber = (((((i - rowLength) / rowLength) + 1) * rowLength).ToString("X4"));                    buffer.AppendLine(segmentNumber + "  " + bytes.PadRight(rowLength * 3 + 1, ‘ ‘) + "  " + ascii);                }            }            return buffer.ToString();        }