C# 定时记录(类似秒表)

【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.Windows.Forms;
using System.Data.OleDb;
using System.Text.RegularExpressions;

namespace Ceshi
{
    
    public partial class Form1 : Form
    {

        float twice;
        float time = 0 ;
        private DateTime starttime; //启动时间 
        private TimeSpan span;     //已走时间
        private TimeSpan addtime;

        private DateTime dt;
        private TimeSpan timenow;
        //private TimeSpan pausespan;//停止时间
     
      
        public Form1()
        {
            InitializeComponent();
            label5.Text = string.Format("00:00:{0}:000", time.ToString("00"));  
        }

        

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                timer1.Start();
                button1.Enabled = false;
                button3.Enabled = false;
                starttime = DateTime.Now;
                //timer1.Interval = Convert.ToInt32(textBoxTime.Text);

                timer2.Start();
                timer1.Interval = Convert.ToInt32(textBoxTime.Text);
                timer2.Interval = 10;

              
                BaseData(textBoxTime.Text, twice, timenow);
            }
            catch { }
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            span = (DateTime.Now - starttime).Add(addtime);
            //string r = Regex.Replace(span.ToString(), @"\.\d $", string.Empty);    
            //span = TimeSpan.Parse(r); //去掉毫秒
            //label4.Text = string.Format("{0:d}",span.ToString());
            //label4.Text = string.Format("{0}", span.ToString());

            twice = Convert.ToInt32(labelTwice.Text);
            twice  ;
            labelTwice.Text = twice.ToString();
            labelTwice.Font = new Font("genericFamily", 15);

        }
     

        private void button2_Click(object sender, EventArgs e)
        {
            try
            {
                timer1.Stop();

                timer2.Stop();
                addtime = TimeSpan.Parse(label5.Text);

             
                button1.Enabled = true;
                button3.Enabled = true;
                BaseData(textBoxTime.Text, twice, timenow);
            }
            catch { }
        }
   

        private void Form1_Load(object sender, EventArgs e)
        {
            label2.Font = new Font("genericFamily", 15);
            label3.Font = new Font("genericFamily", 15);
            labelTwice.Font = new Font("genericFamily", 15);
            label5.Font = new Font("genericFamily", 15);
            label4.Font = new Font("genericFamily", 15);
            label6.Font = new Font("genericFamily", 15);
            string str = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="   Application.StartupPath   @"\sys.mdb";
            OleDbConnection conn = new OleDbConnection(str);
            conn.Open();

            string sql = "select top 1 * from jk order by 记录时间 desc"; //降序最大时间获得第一行
            //OleDbCommand comm = new OleDbCommand(sql, conn);
            //OleDbDataReader DataRead = new OleDbDataReader ();
            //DataRead = comm.ExecuteReader();
            //while (DataRead.Read())
            //{
            //    string times = DataRead[0].ToString ();
            //}
            //DataRead.Close();
            //conn.Close();
        
            DataTable dt=new DataTable();
            OleDbDataAdapter DataRead = new OleDbDataAdapter(sql, conn);
            DataRead.Fill(dt);
            if (dt.Rows.Count == 0)
                return;      
            //DataColumn dc = dt.Columns[0];   //行
            DataRow DR = dt.Rows[0];            
            string times1 = DR[0].ToString();
            string twice1 = DR[1].ToString();
            string time1 = DR[2].ToString();

            textBoxTime.Text = times1;
            labelTwice.Text = twice1;
            label5.Text = time1;
            addtime = TimeSpan.Parse(time1);
            
            
        }

        private void button3_Click(object sender, EventArgs e)
        {
            
            twice = 0;
            addtime =TimeSpan.Parse(Convert.ToString(0));
            timenow =TimeSpan.Parse(Convert.ToString(0));
            addtime = TimeSpan.Parse(Convert.ToString(0));
            label5.Text = Convert.ToString(timenow   addtime);
            labelTwice.Text = twice.ToString();
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
        }

        private void button4_Click(object sender, EventArgs e)
        {
            Form2 f = new Form2();
            f.Show();
        }
        public void BaseData(string times, float twice, TimeSpan span)
        {
            string str = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="   Application.StartupPath   @"\sys.mdb";
            OleDbConnection conn = new OleDbConnection(str);
            conn.Open();

            string sql = "INSERT INTO jk(间隔时间,次数,总时间,记录时间)values('"   times   "','"   twice   "','"   span   "','"   DateTime.Now   "' )";
            OleDbCommand comm = new OleDbCommand(sql, conn);
            comm.ExecuteNonQuery();
            conn.Close();
        }

        private void timer2_Tick(object sender, EventArgs e)
        {
            timenow = (DateTime.Now - starttime).Add(addtime);

            label5.Text = string.Format("{0:d}", timenow.ToString());

            dt = DateTime.Now;
            label6.Text = dt.ToString();
       
        }
    }
}