?using System;
using System.Collections.Generic;
using System.Windows.Forms;

namespace WindowsApplication1
{
    static class Program
    {
        /// <summary>
        /// 應(yīng)用程序的主入口點(diǎn)。
        /// </summary>
        [STAThread]
        static void Main()
        {
            Menu m;
            Application.EnableVisualStyles();
            Application.SetCompatibleTextRenderingDefault(false);
     loop1: Login f1 = new Login();
            Application.Run(f1);
            
            if (f1.getRg == true)
            {
                Register rg = new Register();
                rg.setFlag = f1.getFlag;
                Application.Run(rg);
                if (rg.flag1 == false) goto loop1;
                m = new Menu();
                m.setlimit = rg.getlimit;
                m.setname = rg.getname;
                Application.Run(m);
                if (m.flag) goto loop1;
            }
            else if(f1.closeWin)
            {
                m = new Menu();
                m.setlimit = f1.getlimit;
                m.setname = f1.getname;
                Application.Run(m);
                if (m.flag) goto loop1;
            }           
          
        }
    }
}