简单的Winform秒表工具

核心代码：

using static System.Windows.Forms.VisualStyles.VisualStyleElement.TaskbarClock;
using System.Diagnostics;
using Timer = System.Windows.Forms.Timer;

namespace StopWatch
{
   
   
    public partial class Main : Form
    {
   
   
        public Main()
        {
   
   
            InitializeComponent();
            sw = new Stopwatch();
            time.Tick += new EventHandler(time_Tick);
            time.Interval = 1;
        }
        Timer time = new Timer();
        Stopwatch sw; //秒表
        TimeSpan ts;//计时

        private void Start_Click(object sender, EventArgs e)
        {
   
   
            if (Start.Text=="Start")
            {
   
   
                sw.Reset();
                time.Stop();
                sw.Start();
                time.Start();
            }
            else if (Start.Text=="Continue")
            {
   
   
                sw.Start();
                time.Start();
            }

        }
        void time_Tick(object? sender, EventArgs e)
        {
   
   
            ts = sw.Elapsed;
            timeLabel.Text = string.Format("{0}:{1}:{2}:{3}", ts.Hours, ts.Minutes, ts.Seconds, ts.Milliseconds / 10);
        }

        private void Suspend_Click(object sender, EventArgs e)
        {
   
   
            Start.Text = "Continue";
            sw.Stop();
            time.Stop();
        }

        private void End_Click(object sender, EventArgs e)
        {
   
   
            Start.Text = "Start";
            sw.Stop();
            time.Stop();
            timeLabel.Text = string.Format("{0}:{1}:{2}:{3}", 0, 0, 0, 0);
        }

        private void Main_FormClosing(object sender, FormClosingEventArgs e)
        {
   
   
            sw.Stop();
            time.Stop();
        }
    }
}