C# 自动关机和闹钟 实例源码下载

【实例截图】

【核心代码】

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace 试一试定时消息
{
    public partial class Form1 : Form
    {
        int k=0,i,lab1,count;
        int time,remain,time5;
        string time2;
        public Form1()
        {
            
            InitializeComponent();
            timer2.Enabled = false;
            timer3.Enabled = false;
            timer4.Enabled = false;
            timer5.Enabled = false;
            label4.Visible = false;
            label5.Visible = false;
            label6.Visible = false;
            button1.Text = "确定";
            label1.Text = null;
            timer6.Enabled = true;
            timer6.Interval = 1000;
           
        }

      //  private void Form1_Load(object sender, EventArgs e)
      //  {

      //  }

        private void label1_Click(object sender, EventArgs e)
        {

        }

        private void timer1_Tick(object sender, EventArgs e)
        {
        //    label2.Text = DateTime.Now.ToString(); 
        }
      
        private void timer2_Tick(object sender, EventArgs e)
        {
            timer2.Enabled = false;
           
            System.Reflection.Assembly music;
            System.Media.SoundPlayer media;
           // music = System.Reflection.Assembly.GetExecutingAssembly();
            media = new System.Media.SoundPlayer(global::试一试定时消息.Properties.Resources.夜的钢琴曲);
            media.PlayLooping();
             MessageBox.Show("闹钟！！！");
        }

        private void label3_Click(object sender, EventArgs e)
       {}

        private void textBox1_TextChanged(object sender, EventArgs e)
        {
           
            //char[] ss =textBox1.Text.ToCharArray ();
          //  if( ss[count]< (char)48) ;
           // else
         //   {
            if (textBox1.Text.Length == 0) ;
                //if (int.Parse(textBox1.Text) >= 0)
            else 
                    i = int.Parse(textBox1.Text);
                //textBox1.Text =null;
         //   } count  ;
        }

        private void button1_Click(object sender, EventArgs e)
        {
        
           // timer2.Enabled = true;
           // timer5.Enabled = true;
          // textBox1_TextChanged(null,null);
          
                if (i != 0)
                {
                    label4.Visible = true;
                    label5.Visible = true;
                    label6.Visible = true;
                    timer2.Interval = i * 1000;
                    timer2.Enabled = true;
                    timer5.Interval = 1000;
                    time5 = i;
                    label4.Text = i.ToString();
                    time5--;
                    timer5.Enabled = true;
                    label10.Text =  i.ToString() ;
                    label4.Text = i.ToString();
                    // MessageBox.Show("定时器");
                }
        }

        private void button2_Click(object sender, EventArgs e)
        {
            System.Diagnostics.ProcessStartInfo pf = new System.Diagnostics.ProcessStartInfo("cmd.exe");
            pf.UseShellExecute = false;
            pf.RedirectStandardInput = true;
            pf.RedirectStandardOutput = true;
            pf.RedirectStandardError = true;
            pf.CreateNoWindow = true;
            var pf2 = new System.Diagnostics.Process();
            pf2.StartInfo = pf;
            pf2.Start();
            pf2.StandardInput.WriteLine("shutdown -s -t"  " "  time*60);
            timer3.Interval = 1000;
            timer3.Enabled = true;
            timer4.Interval =  60000;
            label11.Text = (time-1).ToString();
            timer4.Enabled = true;
            remain = time * 60; remain--;
            MessageBox.Show("电脑将在"   time   "分钟后关闭");
        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            if (textBox2.Text.Length == 0) ;
            else
            {
                time2 = textBox2.Text;
                time = int.Parse(textBox2.Text);
            }
        }

        private void timer3_Tick(object sender, EventArgs e)
        {
            remain--;
            label13.Text = (remain % 60).ToString();
        }

       

        private void label13_Click(object sender, EventArgs e)
        {
        }

        private void timer4_Tick(object sender, EventArgs e)
        {
           label11.Text = (remain / 60).ToString();
        }

        private void timer5_Tick(object sender, EventArgs e)
        {
            label4.Text = (time5--).ToString();
            if (time5 < -1)
            {
                // textBox1.Text = null;
                label4.Visible =false;
                label5.Visible =false;
                label6.Visible  = false;
                timer5.Enabled = false;
            }
            
            
            
            
        }

        private void timer6_Tick(object sender, EventArgs e)
        {
            label1.Text = "当前时间:";
            label2.Text =  DateTime.Now.ToString();
        }
    }
 }