C#窗口实现定时关机系统

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.windows.forms;

namespace shutdonewindows
{
  public partial class shutdone : form
  {
    public shutdone()
    {
      initializecomponent();
    }

    private void menuitemexit_click(object sender, eventargs e)
    {
      application.exit();
    }

    private void shutdone_load(object sender, eventargs e)
    {
      this.timer1.start();
      datetime dt = system.datetime.now;
      string dt = system.datetime.now.tostring();
      txtdatatime.text = dt;
    }

    private void btnhide_click(object sender, eventargs e)
    {
      this.hide();
      this.notifyicon1.visible = true;
    }

    private void notifyicon1_mousedoubleclick(object sender, mouseeventargs e)
    {
      this.visible = true;
      this.windowstate = formwindowstate.normal;
      this.notifyicon1.visible = false;          
    }

    private void btnshutdone_click(object sender, eventargs e)
    {
      system.diagnostics.process.start("cmd.exe", "/cshutdown -s -t 0");
    }

    private void btnrelogin_click(object sender, eventargs e)
    {
      system.diagnostics.process.start("cmd.exe", "/logoff 0");
    }

    private void btnreboot_click(object sender, eventargs e)
    {
      system.diagnostics.process.start("cmd.exe", "/shutdown -r 0");
    }

    private void timer1_tick(object sender, eventargs e)
    {
      datetime objdatetime = system.datetime.now;
      string cdata = objdatetime.tolongdatestring();
      string ctime = objdatetime.tolongtimestring();
      this.txtdatatime.text = cdata + "" + ctime;
      if (this.chkstrat.checked == true)
      {
        int y = this.dtpcurrentdate.value.year;
        int m = this.dtpcurrentdate.value.month;
        int d = this.dtpcurrentdate.value.day;
        int h = this.dtpcurrenttime.value.hour;
        int min = this.dtpcurrenttime.value.minute;
        int s = this.dtpcurrenttime.value.second;
        objdatetime = new datetime(y, m, d, h, min, s);
        system.timespan remain = objdatetime - system.datetime.now;
        double time = remain.totalseconds;
        if (time < 0)
        {
          this.chkstrat.checked = false;
          messagebox.show("设定的定时时间必须大于当前时间");
        }
        else 
        {
          if (time < 60 && this.rbtnoneminute.checked == true)
          {
            awokeform aw = new awokeform();
            this.timer1.stop();
            this.hide();
            aw.show();
          }
          if (time < 0 && this.rbtnnone.checked == true)
          {
            system.diagnostics.process.start("cmd.exe", "/cshutdown -s -t 0");

          }
        }

      }
    }

    private void chkstrat_checkedchanged(object sender, eventargs e)
    {

    }

    private void rbtnoneminute_checkedchanged(object sender, eventargs e)
    {




    }

    private void rbtnnone_checkedchanged(object sender, eventargs e)
    {

    }
  }
}

using system;
using system.collections.generic;
using system.componentmodel;
using system.data;
using system.drawing;
using system.linq;
using system.text;
using system.windows.forms;

namespace shutdonewindows
{
  public partial class awokeform : form
  {
    public awokeform()
    {
      initializecomponent();
    }

    private void btncancel_click(object sender, eventargs e)
    {
      timer1.stop();
      this.close();      
    }

    private void awokeform_load(object sender, eventargs e)
    {
      this.timer1.start();

      this.lblmessage.text = "距离当前关机还有" +60+ "秒";

    }
    int max = 60;
    private void timer1_tick(object sender, eventargs e)
    {
      this.max = max - 1;
      if (this.max == 0)
      {
        system.diagnostics.process.start("cmd.exe", "/cshutdown -s -t 0");
        this.timer1.stop();
      }
      else
      {
        this.lblmessage.text = "距离当前关机还有" + this.max.tostring() + "秒";
      }
    }
  }
}