C#实现BCD码

很简单的..不多少了 本月第1篇

 

 string _BcdText = Zgke.ConvertByte.BCD.GetBcdEncode(123456, Zgke.ConvertByte.BCD.BcdType.码8421);

            ulong _Value;

            if(Zgke.ConvertByte.BCD.GetBcdDecode(_BcdText,Zgke.ConvertByte.BCD.BcdType.码8421,out _Value))
            {
                MessageBox.Show(_Value.ToString(), _BcdText);
            }
         

 

 

全部类

 using System;using System.Collections.Generic;using System.Text;using System.Data;namespace Zgke.ConvertByte{ /// <summary> /// BCD码操作 /// [e-mail] /// qq:116149 /// </summary> public class BCD { private static DataTable m_DataTable; public enum BcdType { 码8421, 码5421, 码2421, 余3码, 余3循环码 } /// <summary> /// 或BCD表数据 /// </summary> /// <returns></returns> private static DataTable GetBcdTable() { DataTable _BCDTable = new DataTable(); _BCDTable.Columns.Add("十进制数"); _BCDTable.Columns.Add("码8421"); _BCDTable.Columns.Add("码5421"); _BCDTable.Columns.Add("码2421"); _BCDTable.Columns.Add("余3码"); _BCDTable.Columns.Add("余3循环码"); _BCDTable.Rows.Add(new object[] { "0", "0000", "0000", "0000", "0011", "0010" }); _BCDTable.Rows.Add(new object[] { "1", "0001", "0001", "0001", "0100", "0110" }); _BCDTable.Rows.Add(new object[] { "2", "0010", "0010", "0010", "0101", "0111" }); _BCDTable.Rows.Add(new object[] { "3", "0011", "0011", "0011", "0110", "0101" }); _BCDTable.Rows.Add(new object[] { "4", "0100", "0100", "0100", "0111", "0100" }); _BCDTable.Rows.Add(new object[] { "5", "0101", "1000", "1011", "1000", "1100" }); _BCDTable.Rows.Add(new object[] { "6", "0110", "1001", "1100", "1001", "1101" }); _BCDTable.Rows.Add(new object[] { "7", "0111", "1010", "1101", "1010", "1111" }); _BCDTable.Rows.Add(new object[] { "8", "1000", "1011", "1110", "1011", "1110" }); _BCDTable.Rows.Add(new object[] { "9", "1001", "1100", "1111", "1100", "1010" }); return _BCDTable; } /// <summary> /// BCD解码 /// </summary> /// <param name="p_Value">BCD码</param> /// <param name="p_BcdType">BCD码类型</param> /// <param name="p_LongValue">返回数据</param> /// <returns>false 解码失败 true解编成功</returns> public static bool GetBcdDecode(string p_Value, BcdType p_BcdType, out ulong p_LongValue) { if (m_DataTable == null) m_DataTable = GetBcdTable(); p_LongValue = 0; StringBuilder _Return = new StringBuilder(); if (p_Value.Length % 4 == 0) { int _Count = p_Value.Length / 4; string _ValueText = p_Value.ToString(); for (int i = 0; i != _Count; i++) { DataRow[] _Row = m_DataTable.Select(p_BcdType.ToString() + "=" + _ValueText.Substring(i * 4, 4)); if (_Row.Length == 0) return false; _Return.Append(_Row[0]["十进制数"].ToString()); } p_LongValue = Convert.ToUInt64(_Return.ToString()); return true; } return false; } /// <summary> /// BCD编码 /// </summary> /// <param name="p_Value">数据</param> /// <param name="p_BcdType">编码方式</param> /// <returns>编码 ""</returns> public static string GetBcdEncode(ulong p_Value, BcdType p_BcdType) { if (m_DataTable == null) m_DataTable = GetBcdTable(); StringBuilder _Return = new StringBuilder(); string _ValueText = p_Value.ToString(); for (int i = 0; i != _ValueText.Length; i++) { DataRow[] _Row = m_DataTable.Select("十进制数=" + _ValueText[i].ToString()); if (_Row.Length == 0) return ""; _Return.Append(_Row[0][p_BcdType.ToString()].ToString()); } return _Return.ToString(); } }}