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

namespace EC.Utils.Helper
{
    public class ByteHelper
    {
        public static string IntToHex(int i)
        {
            return Convert.ToString(i, 16);
        }
        /// <summary>
        /// int 类型转回为 byte[]
        /// </summary>
        /// <param name="i"></param>
        /// <returns></returns>
        public static byte[] IntToByte2(int i)
        {
            byte[] a = new byte[2];
            a[0] = (byte)(i >> 8);
            a[1] = (byte)i;
            return a;
        }
        /// <summary>
        /// 截取byte 数组
        /// </summary>
        /// <param name="frombyte"></param>
        /// <param name="begIndex"></param>
        /// <param name="lenth"></param>
        /// <returns></returns>
        public static  byte[] SubArr(byte[] frombyte, int begIndex, int lenth)
        {
            byte[] subByte = new byte[lenth];
            int icount = (begIndex + lenth);
            for (int x = begIndex; x< icount; x++) {
                subByte[x - begIndex] = frombyte[x];
            }
            return subByte;
        }
    }
}