QiFeng.ZWY.Utility/DataHelper/ByteHelper.cs

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

namespace QiFeng.LMSD.Utility
{
    public class ByteHelper
    {
        // 把字节型转换成十六进制字符串

        public static string ByteToString(byte[] InBytes)
        {
            string StringOut = "";
            foreach (byte InByte in InBytes)
            {
                StringOut = StringOut + String.Format("{0:X2} ", InByte);
            }
            return StringOut;
        }
        // 把十六进制字符串转换成字节型

        public static byte[] StringToByte(string InString)
        {
            string[] ByteStrings;
            ByteStrings = InString.Trim().Split(" ".ToCharArray());
            byte[] ByteOut;
            ByteOut = new byte[ByteStrings.Length];
            for (int i = 0; i <= ByteStrings.Length - 1; i++)
            {
                ByteOut[i] = Convert.ToByte("0x" + ByteStrings[i], 16);
            }
            return ByteOut;
        }

        /// <summary>
        /// 截取字节数组
        /// </summary>
        /// <param name="srcBytes">要截取的字节数组</param>
        /// <param name="startIndex">开始截取位置的索引</param>
        /// <param name="length">要截取的字节长度</param>
        /// <returns>截取后的字节数组</returns>
        public static byte[] SubByte(byte[] srcBytes, int startIndex, int length)
        {
            var bufferStream = new System.IO.MemoryStream();
            byte[] returnByte = new byte[] { };
            if (srcBytes == null) { return returnByte; }
            if (startIndex < 0) { startIndex = 0; }
            if (startIndex < srcBytes.Length)
            {
                if (length < 1 || length > srcBytes.Length - startIndex) { length = srcBytes.Length - startIndex; }
                bufferStream.Write(srcBytes, startIndex, length);
                returnByte = bufferStream.ToArray();
                bufferStream.SetLength(0);
                bufferStream.Position = 0;
            }
            bufferStream.Close();
            bufferStream.Dispose();
            return returnByte;