C#计数器

 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;

 //添加以下命名空间
 using System.IO;
 using System.Reflection;
 using System.Resources;
 namespace 帅的计时器哈哈
 {
     public partial class Form1 : Form
     {
         private int _nowsecond = ;
         //类字段：冒号控制标志
         private Boolean _colonFlag = true;

         //数码管位图数组
         private Bitmap[] _bmpShow = new Bitmap[];

         //自定义方法：由显示字符获取对应的数码管位图
         private Image GetResourceImage(string displayStr)
         {
             if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == "")
                 return _bmpShow[];
             else if (displayStr == ".")
                 return _bmpShow[];
             else if (displayStr == ":")
                 return _bmpShow[];
             else
                 return _bmpShow[];
         }

         public Form1()
         {
             InitializeComponent();
             //初始化时间计数值(秒)
             _nowsecond = ;
             //装载数码管位图文件(注意：要保证Debug目录下有images子目录及bmp文件，否则会报错)
             _bmpShow[] = new Bitmap("images/0.bmp");
             _bmpShow[] = new Bitmap("images/1.bmp");
             _bmpShow[] = new Bitmap("images/2.bmp");
             _bmpShow[] = new Bitmap("images/3.bmp");
             _bmpShow[] = new Bitmap("images/4.bmp");
             _bmpShow[] = new Bitmap("images/5.bmp");
             _bmpShow[] = new Bitmap("images/6.bmp");
             _bmpShow[] = new Bitmap("images/7.bmp");
             _bmpShow[] = new Bitmap("images/8.bmp");
             _bmpShow[] = new Bitmap("images/9.bmp");
             _bmpShow[] = new Bitmap("images/dot1.bmp");
             _bmpShow[] = new Bitmap("images/dot2.bmp");
             _bmpShow[] = new Bitmap("images/blank.bmp");
         }

         private void label3_Click(object sender, EventArgs e)
         {

         }

            //按钮"开始"的Click事件响应方法
         private void buttonStart_Click(object sender, EventArgs e)
         {
             label2.Visible = false;
             _nowsecond = ;
             //启动定时器
             timer1.Enabled = true;           timer2.Enabled = true;

             //初始化时间计数值
             labelHour.Text = "";
             labelMinute.Text = "";
             labelSecond.Text = "";
             labelColon1.Visible = true;
             labelColon2.Visible = true;
             //启用或禁用有关按钮
             buttonStart.Enabled = false;     buttonPauseContinue.Enabled = true;     buttonStop.Enabled = true;
             //改变按钮文字
             buttonPauseContinue.Text = "暂停";
             buttonStart.BackColor=buttonStart.BackColor == Color.Blue ? Color.Yellow : Color.Blue;
             //冒号控制标志设置为true
             _colonFlag = true;
             //隐藏冒号
             pictureBoxColon1.Image = GetResourceImage(" ");
             pictureBoxColon2.Image = GetResourceImage(" ");

         }

         private void timer1_Tick(object sender, EventArgs e)
         {
             _nowsecond++;
             int hour = _nowsecond / ;
             int minute = (_nowsecond % ) / ;
             int second = (_nowsecond % ) % ;

             if(hour<=)
                 labelHour.Text=""+hour.ToString();
             else labelHour.Text = hour.ToString();
             if(minute<=)
                 labelMinute.Text = "" + minute.ToString();
             else labelMinute.Text = minute.ToString();
             if(second<=)
                 labelSecond.Text = "" + second.ToString();
             else labelSecond.Text = second.ToString();
             //显示当前的秒
             this.pictureBoxSecond1.Image = GetResourceImage((second / ).ToString());
             this.pictureBoxSecond2.Image = GetResourceImage((second % ).ToString());
             //显示当前的分
             this.pictureBoxMinute1.Image = GetResourceImage((minute / ).ToString());
             this.pictureBoxMinute2.Image = GetResourceImage((minute % ).ToString());
             //显示当前的小时
             this.pictureBoxHour1.Image = GetResourceImage((hour / ).ToString());
             this.pictureBoxHour2.Image = GetResourceImage((hour % ).ToString());

         }

         private void labelHour_Click(object sender, EventArgs e)
         {

         }

         private void labelMinute_Click(object sender, EventArgs e)
         {

         }

         private void labelSecond_Click(object sender, EventArgs e)
         {

         }

         //Timer2定时器的Tick事件响应方法
         private void timer2_Tick(object sender, EventArgs e)
         {
             //让中间的冒号闪烁起来
             if (labelColon1.Visible == true)
             {
                 labelColon1.Visible = false;
                 labelColon2.Visible = false;
             }
             else
             {
                 labelColon1.Visible = true;
                 labelColon2.Visible = true;
             }
             //切换冒号显示控制标志
             _colonFlag = !_colonFlag;

             //判断冒号控制标志是否为true
             if (_colonFlag == true)
             {
                 pictureBoxColon1.Image = GetResourceImage(" ");
                 pictureBoxColon2.Image = GetResourceImage(" ");
             }
             else
             {
                 pictureBoxColon1.Image = GetResourceImage(":");
                 pictureBoxColon2.Image = GetResourceImage(":");
             }
         }

         private void buttonStart_MouseDown(object sender, MouseEventArgs e)
         {
         }

         private void buttonStart_KeyPress(object sender, KeyPressEventArgs e)
         {

         }

         private void Form1_Load(object sender, EventArgs e)
         {
             buttonStart.Enabled = true;
             buttonPauseContinue.Enabled = false;
             buttonStop.Enabled = false;
             buttonPauseContinue.Text = "暂停";
             labelColon1.Visible = true;
             labelColon2.Visible = true;
             label2.Visible = false;
             //初始化所有ImageBox控件的初始位图
             pictureBoxHour1.Image = GetResourceImage("");
             pictureBoxHour2.Image = GetResourceImage("");
             pictureBoxMinute1.Image = GetResourceImage("");
             pictureBoxMinute2.Image = GetResourceImage("");
             pictureBoxSecond1.Image = GetResourceImage("");
             pictureBoxSecond2.Image = GetResourceImage("");
             pictureBoxColon1.Image = GetResourceImage(":");
             pictureBoxColon2.Image = GetResourceImage(":");

         }

         private void buttonStop_Click(object sender, EventArgs e)
         {
             _nowsecond = ;
             timer1.Enabled = false;
             timer2.Enabled = false;
             buttonStart.Enabled = true; buttonPauseContinue.Enabled = false; buttonStop.Enabled = false;
             buttonPauseContinue.Text = "暂停";
             labelColon2.Visible = true;
             labelColon1.Visible = true;
             buttonStart.BackColor = Color.Yellow;
             labelHour.Text = "";
             labelMinute.Text = "";
             labelSecond.Text = "";
             label2.Visible = true;
             //冒号控制标志设置为true
             _colonFlag = true;
             //显示冒号
             pictureBoxColon1.Image = GetResourceImage(":");
             pictureBoxColon2.Image = GetResourceImage(":");

             //清空时间计数值(秒)
             _nowsecond = ;
             pictureBoxHour1.Image = GetResourceImage("");
             pictureBoxHour2.Image = GetResourceImage("");
             pictureBoxMinute1.Image = GetResourceImage("");
             pictureBoxMinute2.Image = GetResourceImage("");
             pictureBoxSecond1.Image = GetResourceImage("");
             pictureBoxSecond2.Image = GetResourceImage("");
             pictureBoxColon1.Image = GetResourceImage(":");
             pictureBoxColon2.Image = GetResourceImage(":");
         }

         private void buttonPauseContinue_Click(object sender, EventArgs e)
         {
             if (buttonPauseContinue.Text== "暂停")
             {
                  labelColon2.Visible = true;
                  labelColon1.Visible = true;
                 timer1.Enabled = false;
                 timer2.Enabled = false;
                 buttonPauseContinue.Text = "继续";
             }
             else
             {
                  labelColon2.Visible = true;
                  labelColon1.Visible = true;
                     timer1.Enabled = true;
                     timer2.Enabled = true;
                 buttonPauseContinue.Text = "暂停";
             }
             pictureBoxColon1.Image = GetResourceImage(":");
             pictureBoxColon2.Image = GetResourceImage(":");
         }

         private void Form1_Move(object sender, EventArgs e)
         {
             //停靠屏幕左右边框
             int screenRight = Screen.PrimaryScreen.Bounds.Right;
             int formRight = this.Left + this.Size.Width;
             if (Math.Abs(screenRight - formRight) <= )
                 this.Left = screenRight - this.Size.Width;
             if (Math.Abs(this.Left) <= )
                 this.Left = ;

             //停靠屏幕上下边框
             int screenBottom = Screen.PrimaryScreen.Bounds.Bottom;
             int formBottom = this.Top + this.Size.Height;
             if (Math.Abs(screenBottom - formBottom) <= )
                 this.Top = screenBottom - this.Size.Height;
             if (Math.Abs(this.Top) <= )
                 this.Top = ;
         }

         private void pictureBox2_Click(object sender, EventArgs e)
         {

         }

         private void pictureBox5_Click(object sender, EventArgs e)
         {

         }

         private void pictureBoxHour1_Click(object sender, EventArgs e)
         {

         }
     }
 }