Question

c#计时器，按button1开始计时，按button2计时结束并用messagebox显示计时时间，非常感谢！！

Answer 1

简单的实现的话，根本不必用Timer的
首先定义两个datetime全局的型缓变量 DateTime startTime = new DateTime();
DateTime endTime = new DateTime();
在button1点击事件里面
private void button1_Click(object sender, EventArgs e)
{
startTime = DateTime.Now;
MessageBox.Show("碧尘计时开始！");
}

private void button2_Click(object sender, EventArgs e)
{
endTime = DateTime.Now;
MessageBox.Show((endTime-startTime).ToString());
}
这样悔租禅就可以了啊。

追问

这个方法很好 时间单位要精确到秒怎么办

追答

DateTime.Now.ToString("hh:mm:ss");
这样就行了

Answer 2

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Threading;

namespace WindowsApplication1
{

public partial class Form1 : Form
{
private Thread MyThread;
public Form1()
{
InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)
{

}

private void JiShi()
{
while (true)
{
label1.Text = DateTime.Now.ToString();
Thread.Sleep(1000);
}
}

private void button2_Click(object sender, EventArgs e)
{
MyThread.Abort();
}

private void button1_Click(object sender, EventArgs e)
{
MyThread = new Thread(new ThreadStart(JiShi));
MyThread.Start();
CheckForIllegalCrossThreadCalls = false;
}

}
}

注意引衡隐高用，在上班携洞，没办法帮你咐尺调试，请见谅