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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using System.Threading.Tasks;
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namespace WIDESEA_Comm.DataHandle
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{
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public class DataParse
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{
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/// <summary>
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/// 字节转bit字符串(注意偏移量0，对应的是下标0)
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/// </summary>
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/// <param name="b">字节</param>
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/// <returns></returns>
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public static char[] Byte2Bit(byte b)
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{
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var strTemp = Convert.ToString(b, 2).PadLeft(8, '0').ToCharArray();
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Array.Reverse(strTemp);
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return strTemp;
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}
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/// <summary>
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/// 获取字符串【西门子】
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/// </summary>
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/// <param name="socure">源</param>
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/// <param name="start">起始位置</param>
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/// <returns></returns>
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public static string GetStr(byte[] socure, int start)
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{
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//有效长度
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int truelength = socure[start + 1];
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//前两位是西门标识位
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if (truelength > socure.Length - 2)
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{
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truelength = socure.Length - 2;
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}
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List<byte> newByte = new List<byte>();
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for (int i = 0; i < truelength; i++)
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{
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newByte.Add(socure[start + i + 2]);
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}
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return Encoding.ASCII.GetString(newByte.ToArray()).Replace("\0", "");
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}
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/// <summary>
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/// 8比特位转字节
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/// </summary>
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/// <param name="bitStr">第一个权重最低</param>
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/// <returns></returns>
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public static byte Bit2Byte(char[] chardatas)
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{
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if (chardatas.Length != 8)
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{
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throw new Exception("请输入8位的bit字符串");
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}
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int res = 0;
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for (int i = 0; i < 8; i++)
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{
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var value = short.Parse(chardatas[i].ToString()) * Math.Pow(2, i);
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res += (int)value;
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}
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if (res > 255)
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{
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throw new Exception("bit超出字节大小255");
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}
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return (byte)res;
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}
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}
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}
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