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- using System;
- using System.Collections.Generic;
- using System.Linq;
- using System.Text;
- /// <summary>
- /// 位操作
- /// </summary>
- public partial class Utils
- {
- /// <summary>
- /// 设置指定位为0 位下标:0-31
- /// </summary>
- /// <param name="val">目标值</param>
- /// <param name="pos">目标位</param>
- /// <returns>修改后的值</returns>
- public static int BitZero(int val, int pos)
- {
- int bit = 1 << pos;
- int mark = 0;
- mark = (~mark) ^ bit;
- val &= mark;
- return val;
- }
- /// <summary>
- /// 设置指定位为1 位下标:0-31
- /// </summary>
- /// <param name="val">目标值</param>
- /// <param name="pos">目标位</param>
- /// <returns>修改后的值</returns>
- public static int BitOne(int val, int pos)
- {
- int bit = 1 << pos;
- val |= bit;
- return val;
- }
- /// <summary>
- /// 获取指定位的值 位下标:0-31
- /// </summary>
- /// <param name="val">目标值</param>
- /// <param name="pos">目标位</param>
- /// <returns>目标位的值0或1</returns>
- public static int GetBit(int val, int pos)
- {
- return (val & (1 << pos)) >> pos;
- }
- }
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