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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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namespace CommService
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{
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/*
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*类名称：Utility
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*创建人：韩荣伟
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*创建时间：2010-10-30
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*功能描述：工具类
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*/
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class Utility
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{
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/*
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*方法名称：floatStringToBCD
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*创建人：韩荣伟
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*创建时间：2010-10-30
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*参数描述：string sFloat 待转换的浮点数字符串,
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*int nIntSize 整数位数,
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*int nFloat 小数位数,
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*ref byte[] arrBytes 保存的字节数组
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*返回描述：bool true 转换成功，false 失败
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*功能描述：将浮点数转换为BCD码
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*/
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public static bool floatStringToBCD(string sFloat,int nIntSize,int nFloat, ref byte[] arrBytes)
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{
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if (sFloat == "" || (nIntSize + nFloat)%2 > 0)
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{
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return false;
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}
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string sLeft;
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string sRight;
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int nFirstPos = sFloat.IndexOf('.');
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int nOldLen = sFloat.Length;
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int nPos = nFirstPos;
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while (nPos >= 0)
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{
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sFloat = sFloat.Remove(nPos, 1);
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nPos = sFloat.IndexOf('.');
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}
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if (nFirstPos == 0)
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{
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sLeft = new string('0', nIntSize);
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sRight = sFloat;
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}
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else if (nFirstPos == -1 || nFirstPos == (nOldLen - 1))
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{
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sLeft = sFloat;
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sRight = new string('0', nFloat);
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}
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else
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{
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sLeft = sFloat.Substring(0, nFirstPos);
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sRight = sFloat.Substring(nFirstPos, sFloat.Length - nFirstPos);
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}
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sLeft = sLeft.PadLeft(nIntSize, '0');
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sRight = sRight.PadRight(nFloat,'0');
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string sOK = sLeft.Substring(sLeft.Length - nIntSize, nIntSize) + sRight.Substring(0, nFloat);
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arrBytes = new byte[sOK.Length / 2];
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for (int i = 0; i < sOK.Length / 2; i++)
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{
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arrBytes[i] = Convert.ToByte(sOK.Substring(2 * i, 2), 16);
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}
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return true;
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}
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}
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}
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