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   源码介绍

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
using System.Runtime.InteropServices;
using System.Diagnostics;
using System.IO;

namespace 定时自动关机
{
    /// <summary>
    /// Window1.xaml 的交互逻辑
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }
        [DllImport("user32")]
        public static extern int ExitWindowsEx(int x, int y);

        private DispatcherTimer Timer1 = new DispatcherTimer();
        private int second = 30;
        private void Grid_Loaded(object sender, RoutedEventArgs e)
        {
            AutoRun();
            ShutDown();
        }

        private void Timer1_Tick(object sender, EventArgs e)
        {
            second--;
            this.label2.Content = second.ToString()   "秒";
            if (second==0)
            {
                ExitWindowsEx(1,0);
            }
        }
        private void btnStop_Click(object sender, RoutedEventArgs e)
        {
            if (Timer1.IsEnabled == true)
            {
                btnStop.Content = "开始";
                Timer1.Stop();
            }
            else
            {
                btnStop.Content = "停止";
                Timer1.IsEnabled = true;
            }
        }

        private void btnAbort_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }

        //自启动
        public void AutoRun()
        {
            string StartupPath = System.Environment.GetFolderPath(System.Environment.SpecialFolder.Startup);
            string strEXEpath = Process.GetCurrentProcess().MainModule.FileName;
            string strFilepath = Environment.CurrentDirectory;
            int l=strEXEpath.LastIndexOf("\\");
            string strEXEName = strEXEpath.Substring(l 1);
            System.IO.File.Copy(strEXEpath, StartupPath   strEXEName, true);

            //获得文件的当前路径
            string dir = Directory.GetCurrentDirectory();
            //获取可执行文件的全部路径
            string exeDir = dir   "自动关机任务.exe";

            //获取Run键
            Microsoft.Win32.RegistryKey key1 = Microsoft.Win32.Registry.LocalMachine;
            Microsoft.Win32.RegistryKey key2 = key1.CreateSubKey("SOFTWARE");
            Microsoft.Win32.RegistryKey key3 = key2.CreateSubKey("Microsoft");
            Microsoft.Win32.RegistryKey key4 = key3.CreateSubKey("Windows");
            Microsoft.Win32.RegistryKey key5 = key4.CreateSubKey("CurrentVersion");
            Microsoft.Win32.RegistryKey key6 = key5.CreateSubKey("Run");
            //在Run键中写入一个新的键值
            key6.SetValue("自动关机", exeDir);
            key6.Close();

            //如果要取消的话就将key6.SetValue("myForm",exeDir);改成
            //key6.SetValue("myForm",false);

        }
        

        //进入倒计时关机
        public void ShutDown()
        {
            Timer1.Interval = TimeSpan.FromSeconds(1.0);
            Timer1.IsEnabled = true;
            Timer1.Tick  = new EventHandler(Timer1_Tick);
            Timer1.Start();
        }
 
    }
}