?using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace 加密解密
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string a = textBox1.Text;
            
            textBox2.Text=Base64.Encrypt(a);
        }

        private void button2_Click(object sender, EventArgs e)
        {
            textBox3.Text = Base64.Decrypt(textBox2.Text);
        }
    }
}