C# 校验码计算器

   校验码计算方法，就是 1^2^3 的运算，先看效果

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 看代码:

  

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace CheckCode
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnClear_Click(object sender, EventArgs e)
        {
            tb16.Text = "";
            tbValue.Text = "";
        }

        private void btnJisuan_Click(object sender, EventArgs e)
        {
            byte[] bys = strToToHexByte(tb16.Text.Trim());
            int va = bys[0];
            for (int i = 1; i < bys.Length;i++ )
            {
                va = va ^ bys[i];
            }
            tbValue.Text = va.ToString("X2");
            
        }

        private  byte[] strToToHexByte(string hexString)
        {
            hexString = hexString.Replace(" ", "");
            if ((hexString.Length % 2) != 0)
                hexString += " ";
            byte[] returnBytes = new byte[hexString.Length / 2];
            for (int i = 0; i < returnBytes.Length; i++)
                returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
            return returnBytes;
        }

        public string byteToHexStr(byte[] bytes)
        {
            string returnStr = "";
            if (bytes != null)
            {
                for (int i = 0; i < bytes.Length; i++)
                {
                    returnStr += bytes[i].ToString("X2");
                }
            }
            return returnStr;
        }

    }
}