CaiQie/RfidWeb/FormMain.cs

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 RfidWeb
{
    public partial class FormMain : Form
    {
        public FormMain()
        {
            InitializeComponent();
            if (this.FormBorderStyle == FormBorderStyle.None)
            {
                this.FormBorderStyle = FormBorderStyle.FixedSingle;
                this.WindowState = FormWindowState.Normal;
            }
            else
            {
                this.FormBorderStyle = FormBorderStyle.None;
                this.WindowState = FormWindowState.Maximized;
            }

        }

        private void btnExit_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }
    }
}