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";
      }
    }
  }
}