简单秒表计时器的制作

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标题

 

这个简单计时器的功能如下：

• 1、点击开始，进行计时，此时开始按钮灰度，停止和重置按钮正常运行。
• 2、点击停止按钮，计时停止，此时停止按钮灰度，开始和重置按钮正常运行。
• 3、点击重置按钮，无论当前是计时状态还是停止状态，均恢复至开始计时初始界面。

 

 

---

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 Exercise
{
    public partial class 计时器 : Form
    {
        private DateTime timeSum;
        public 计时器()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            this.timeSum = new DateTime(0); //开始显示时间 0.0.0：0
            this.label1.Text = timeSum.Hour + "." + timeSum.Minute + "." + timeSum.Second + ":" + timeSum.Millisecond;
            this.button2.Enabled = false;

        }

        private void IncreaseTime(double seconds)
        {
            this.timeSum = this.timeSum.AddSeconds(seconds);
            this.label1.Text = timeSum.Hour + "." + timeSum.Minute + "." + timeSum.Second + ":" + timeSum.Millisecond;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            this.IncreaseTime(0.1);
        }

        private void button1_Click(object sender, EventArgs e)
        {
            this.timer1.Start();
            this.button1.Enabled = false;
            this.button2.Enabled = true;

        }

        private void button2_Click(object sender, EventArgs e)
        {
            this.timer1.Stop();
            this.button1.Enabled = true;
            this.button2.Enabled = false;
        }

        private void button3_Click(object sender, EventArgs e)
        {
            this.timeSum = new DateTime(0); //开始显示时间 0.0.0：0
            this.timer1.Stop();
            this.label1.Text = timeSum.Hour + "." + timeSum.Minute + "." + timeSum.Second + ":" + timeSum.Millisecond;
            this.button1.Enabled = true;
            this.button2.Enabled = true;

        }
    }
}