while (stream8_12.Position < stream8_12.Length)//126
                        {
                            var yyyy_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);
                            var MM_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);
                            var dd_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);
                            var hh_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);
                            var mm_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);
                            var ss_08HTemp = Convert.ToString(stream8_12.ReadByte(), 16);

                            var sd = Convert.ToString(stream8_12.ReadByte(), 16);
                            var zt =Convert.ToString(stream8_12.ReadByte(), 2).PadLeft(8, '0');
                            DataRow tempSix = resultDtListSix_12.NewRow();
                            tempSix[0] = "20" + statr_yyyy_08H + "-" + statr_MM_08H + "-" + statr_dd_08H + ":" + statr_hh_08H + ":" + statr_mm_08H + ":" + statr_ss_08H;
                            tempSix[1] = sd;
                            for (int ss = 0; ss < zt.Length; ss++)
                            {
                                tempSix[ss + 2] = zt[ss].ToString() == "0" ? "是" : "否";
                            }
                        }

stream8_12 是流 

规则

即这样的规则：

1 2 3 4 5 6 ~~~~~~~~~~~~~~~~~~126

127 128 129 130 131 132 ~~~~~~~252

253 254 255 256 257 258 259~~~~~~ 504

循环的时候 前面6个只循环一次