Shihong-Delta.Injection.Iot/Sln.Iot.Business/ToolBusiness.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Sln.Iot.Business
{
    public class ToolBusiness
    {
        /// <summary>
        /// 将偶数长度的byte数组中每对相邻元素（偶数下标和奇数下标）互换位置
        /// </summary>
        /// <param name="inputBytes">输入的byte数组（必须非空且长度为偶数）</param>
        /// <returns>处理后的新byte数组</returns>
        /// <exception cref="ArgumentNullException">输入数组为空时抛出</exception>
        /// <exception cref="ArgumentException">输入数组长度为奇数时抛出</exception>
        public static byte[] SwapAdjacentBytes(byte[] inputBytes)
        {
            // 校验输入：数组不能为空
            if (inputBytes == null)
            {
                throw new ArgumentNullException(nameof(inputBytes), "输入的byte数组不能为null");
            }

            // 校验输入：数组长度必须为偶数
            if (inputBytes.Length % 2 != 0)
            {
                throw new ArgumentException("输入的byte数组长度必须为偶数", nameof(inputBytes));
            }

            // 创建原数组的副本，避免修改原数组
            byte[] resultBytes = (byte[])inputBytes.Clone();

            // 遍历数组，步长为2，交换每对相邻元素
            for (int i = 0; i < resultBytes.Length; i += 2)
            {
                // 交换偶数下标(i)和奇数下标(i+1)的元素
                byte temp = resultBytes[i];
                resultBytes[i] = resultBytes[i + 1];
                resultBytes[i + 1] = temp;
            }

            return resultBytes;
        }
    }
}