C# 简单的定时关机

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            using
             System;

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            using
             System.Collections.Generic;

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            using
             System.ComponentModel;

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            using
             System.Data;

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            using
             System.Drawing;

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            using
             System.Linq;

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            using
             System.Text;

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            using
             System.Windows.Forms;

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             10
            namespace
             AutoCloseComputer

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            {

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            public
            partial
            class
             Form1 : Form

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                {

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            public
             Form1()

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                    { 

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             17
                        InitializeComponent();

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             19
            //
            设置默认时间为当前时间
             20             nud_hour.Value = Convert.ToDecimal(DateTime.Now.Hour);
 21             nud_min.Value = Convert.ToDecimal(DateTime.Now.Minute);
 22 23             txt_sencods.Text = "600";  //设置默认时间为10*60秒 24 25        }
 26 27///<summary> 28/// 启动定时关机程序
 29///</summary> 30///<param name="sender"></param> 31///<param name="e"></param> 32privatevoid btnCloseComputer_Click(object sender, EventArgs e)
 33        {
 34             lab_result.Text = "";
 35 36string str = txt_sencods.Text.Trim();
 37if (string.IsNullOrEmpty(str))
 38            {
 39                 lab_result.Text = "时间不能为空";
 40return;
 41            }
 42 43int seconds = 0;
 44if (int.TryParse(str, out seconds))
 45            { 
 46                 OperateComputer("shutdown -s -t " + seconds); 
 47            }
 48else 49            {
 50                 lab_result.Text = "时间格式只能输入数字";
 51            }
 52        }
 53 54///<summary> 55/// 取消关机命令
 56///</summary> 57///<param name="sender"></param> 58///<param name="e"></param> 59privatevoid btnCancelClose_Click(object sender, EventArgs e)
 60        {
 61             OperateComputer("shutdown -a"); 
 62        }
 63 64 65///<summary> 66/// 操作电脑命令
 67///</summary> 68///<param name="command"></param> 69privatevoid OperateComputer(string command)
 70        {
 71var startInfo = new System.Diagnostics.ProcessStartInfo("cmd.exe");
 72             startInfo.UseShellExecute = false;
 73             startInfo.RedirectStandardInput = true;
 74             startInfo.RedirectStandardOutput = true;
 75             startInfo.RedirectStandardError = true;
 76             startInfo.CreateNoWindow = true;
 77var myProcess = new System.Diagnostics.Process();
 78             myProcess.StartInfo = startInfo;
 79            myProcess.Start();
 80            myProcess.StandardInput.WriteLine(command);
 81        }
 82 83 84///<summary> 85/// 指定时间关机
 86///</summary> 87///<param name="sender"></param> 88///<param name="e"></param> 89privatevoid btnTimeClose_Click(object sender, EventArgs e)
 90        {
 91int hour = Convert.ToInt32(nud_hour.Value);
 92int min = Convert.ToInt32(nud_min.Value);
 93 94             DateTime closedt = DateTime.Now;
 95 96//当时间小于当前时认为是第二天的时间 97if(hour<DateTime.Now.Hour)
 98            {
 99string strdt = DateTime.Now.AddDays(1D).ToString("yyyy-MM-dd") + "" + hour.ToString().PadLeft(2,‘0‘) + ":" + min.ToString().PadLeft(2,‘0‘);
100                 closedt = Convert.ToDateTime(strdt);
101102             }else103            {
104string strdt = DateTime.Now.ToString("yyyy-MM-dd") + "" + hour.ToString().PadLeft(2, ‘0‘) + ":" + min.ToString().PadLeft(2, ‘0‘);
105                 closedt = Convert.ToDateTime(strdt);
106            }
107//计算出时间差108int total = Convert.ToInt32((closedt - DateTime.Now).TotalSeconds);
109             OperateComputer("shutdown -s -t " + total);
110111//一下命令没有效果
112//string command = "at " + hour + ":" + min + " shutdown -s";
113//OperateComputer(command); 114115        }
116117    }
118 }