72 lines
2.3 KiB
C#
72 lines
2.3 KiB
C#
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 OrpaonEMS.App.Com
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{
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public class BitHelper
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{
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/// <summary>
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/// 获取字的高字节
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/// </summary>
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public static byte GetHByteUint16(ushort data)
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{
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return (byte)(data >> 8);//高位
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}
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/// <summary>
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/// 获取字的低字节
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/// </summary>
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public static byte GetLByteUint16(ushort data)
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{
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return (byte)(data & 0xff);//低位
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}
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/// <summary>
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/// 根据Int类型的值，返回用1或0(对应True或Flase)填充的数组
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/// <remarks>从右侧开始向左索引(0~31)</remarks>
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/// </summary>
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/// <param name="value"></param>
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/// <returns></returns>
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public static IEnumerable<bool> GetBitList(int value)
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{
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var list = new List<bool>(32);
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for (var i = 0; i <= 31; i++)
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{
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var val = 1 << i;
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list.Add((value & val) == val);
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}
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return list;
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}
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/// <summary>
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/// 返回Int数据中某一位是否为1
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/// </summary>
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/// <param name="value"></param>
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/// <param name="index">32位数据的从右向左的偏移位索引(0~31)</param>
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/// <returns>true表示该位为1，false表示该位为0</returns>
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public static bool GetBitValue(int value, ushort index)
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{
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if (index > 31) throw new ArgumentOutOfRangeException("index"); //索引出错
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var val = 1 << index;
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return (value & val) == val;
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}
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/// <summary>
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/// 设定Int数据中某一位的值
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/// </summary>
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/// <param name="value">位设定前的值</param>
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/// <param name="index">32位数据的从右向左的偏移位索引(0~31)</param>
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/// <param name="bitValue">true设该位为1,false设为0</param>
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/// <returns>返回位设定后的值</returns>
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public static int SetBitValue(int value, ushort index, bool bitValue)
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{
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if (index > 31) throw new ArgumentOutOfRangeException("index"); //索引出错
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var val = 1 << index;
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return bitValue ? (value | val) : (value & ~val);
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}
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}
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}
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