串口编程补充

 /// <summary>
        /// 数据转换
        /// </summary>
        /// <param name="values">要转换的byte数组</param>
        /// <param name="factor">计算因子</param>
        /// <param name="reh">高位字符</param>
        /// <returns></returns>
        private double ByteConvertDouble(byte[] values,int factor = 0, bool reh = false)
        {
            string hexStr = string.Empty;
            for (int i = 0; i < values.Length; i++)
            {
                hexStr += GetHexStr(values[i]);
            }
            if (reh)
                hexStr = hexStr.Substring(1);
            double temp = Convert.ToInt32(hexStr, 16) * Math.Pow(0.1, factor);
            if (reh)
                temp *= (-1);
            return temp;
        }
        /// <summary>
        /// byte 转十六进制字符
        /// </summary>
        /// <param name="b"></param>
        /// <returns></returns>
        private string GetHexStr(byte b)
        {
            return (b / 16).ToString("X") + (b % 16).ToString("X");
        }