C#基础之秒表的简单实现

本文介绍如何使用C#实现一个简单的秒表计时器,具备开始、暂停和停止功能。通过Stopwatch和Timer类实现,点击相应按钮进行操作,界面上显示实时时间。后续计划增加暂停时记录多个中间结果的功能,适用于记录多组数据场景。

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由于目前用到了C#的有关知识,但之前没有C#的基础,所以趁着机会正好学习学习。

本篇博文,记录下利用C#实现一个简单的秒表计时器,基本界面如下图。

功能说明:点击“开始”开始计时,点击“暂停”暂停计时,点击“”停止“”停止计时,再点击“开始”,重新开始计时。

首先,我们在窗体设计窗口画出该界面,由1个Label,3个button构成。双击按钮添加事件。

核心部分是用秒表对象Stopwatch和时钟Timer实现的。


程序源代码如下:

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.Diagnostics;


namespace Ch04Ex04
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }


        Timer time = new Timer();
        Stopwatch sw; //秒表对象
        TimeSpan ts;

        static int count = 1;


        private void button1_Click(object sender, EventArgs e)
        {
            //开始按钮
            button2.Enabled = true;
            button3.Enabled = true;
            if(button2.Text == "继续") //开始后将继续按钮重置为暂停
                button2.Text = "暂停";
            sw = new Stopwatch();
            time.Tick += new EventHandler(time_Tick);  //时钟触发

namespace StopWatch { public partial class Form2 : Form { DateTime examtime; DateTime nowtime; DateTime t = DateTime.Now; int add = 0; public Form2() { InitializeComponent(); } private void Form2_Load(object sender, EventArgs e) { timer1.Enabled = false; examtime = new DateTime(1, 1, 1, 0,0, 0); labTime.Text = "0" + examtime.ToLongTimeString(); if (t.Hour < 10) labT.Text = "0" + DateTime.Now.ToLongTimeString(); else labT.Text = DateTime.Now.ToLongTimeString(); } private void button2_Click(object sender, EventArgs e) { if (add < 1 ) { starttime(); } else { MessageBox.Show("记录已满,请清除记录后再开始记录!"); } } private void button1_Click(object sender, EventArgs e) { if (timer1.Enabled != false) { Add(); } if (add >= 5) { MessageBox.Show("对不起!最多只能记录4条!!"); timer1.Enabled = false; } } private void button3_Click(object sender, EventArgs e) { ClearTime(); add = 0 - 1; Add(); stoptime(); } private void button4_Click(object sender, EventArgs e) { Application.Exit(); } private void timer1_Tick(object sender, EventArgs e) { examtime = examtime.AddSeconds(1); if (examtime.Hour < 10) labTime.Text = "0" + examtime.ToLongTimeString(); else labTime.Text = examtime.ToLongTimeString(); } private void timer2_Tick(object sender, EventArgs e) { if(t.Hour<10) labT.Text = "0"+DateTime.Now.ToLongTimeString(); else labT.Text = DateTime.Now.ToLongTimeString();nowtime = nowtime.AddSeconds(1); } private void Add() { add = add + 1; switch (add) { case 1: textBox1.Text = "0" + examtime.ToLongTimeString(); timer1.Enabled = true; break; case 2: textBox2.Text = "0" + examtime.ToLongTimeString(); timer1.Enabled = true; break; case 3: textBox3.Text = "0" + examtime.ToLongTimeString(); timer1.Enabled = true; break; case 4: textBox4.Text = "0" + examtime.ToLongTimeString(); Program.hash.add(textBox1.Text, textBox2.Text, textBox3.Text, textBox4.Text); timer1.Enabled = true; timer1.Enabled = false; break; case 5: default: break; } } private void ClearTime() { examtime = new DateTime(1, 1, 1, 0, 0, 0); labTime.Text = "0" + examtime.ToLongTimeString(); textBox1.Clear(); textBox2.Clear(); textBox3.Clear(); textBox4.Clear(); textBox1.Text = "0" + examtime.ToLongTimeString(); textBox2.Text = "0" + examtime.ToLongTimeString(); textBox3.Text = "0" + examtime.ToLongTimeString(); textBox4.Text = "0" + examtime.ToLongTimeString(); timer1.Enabled = false; } private void starttime() { timer1.Enabled = true; } private void stoptime() { timer1.Enabled = false; } private void textBox1_TextChanged(object sender, EventArgs e) { } private void textBox2_TextChanged(object sender, EventArgs e) { } private void textBox3_TextChanged(object sender, EventArgs e) { } private void textBox4_TextChanged(object sender, EventArgs e) { } private void pictureBox1_Click(object sender, EventArgs e) { } private void textBox5_TextChanged(object sender, EventArgs e) { } private void labTime_Click(object sender, EventArgs e) { } private void timeshow_Click(object sender, EventArgs e) { Form3 frm = new Form3(); frm.Show(); } } }
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