大家好，求助，帮忙编写倒计时，100分！

[loveluo616]

大家好呀，可以帮忙编写倒计时程序吗？具体要求：分秒就可以了，但是在到了指定的时间时需出现声音提醒，已达到提醒功能，可以的话，邦个忙吧，小弟是新手，探索了N久，实在是做不出来了，实在不好意思麻烦大家了，使用C#2005。

[jacklee_008]

...

[zgke]

你自己写写把 这东西不难把..


使用Timer和 TimeSpan很简单的.
private void Form1_Load(object sender, EventArgs e)
{
_Timer.Interval = 1000;
_Timer.Tick += new EventHandler(_Timer_Tick);
_Timer.Enabled = true;
}
private Timer _Timer = new Timer();
private TimeSpan _TimSpan = new TimeSpan(1, 0, 0);
void _Timer_Tick(object sender, EventArgs e)
{
this.Text = _TimSpan.ToString();
_TimSpan=_TimSpan.Add(new TimeSpan(0, 0, -1));
if (_TimSpan.TotalSeconds == 0) _Timer.Enabled = false;
}

[mawering]

倒计时用Timer,调用声音用Wrindows Media控件就行，不难写的。

[mabailin]

顶，学习下

[A海阔天空]

Timer

[skycc999]

楼主参考一下2楼的方法，主要用到的就是Timer。

[路人乙e]

System.Timers.Timer tmr = new System.Timers.Timer(1000);
tmr.Elapsed += delegate
{
if(DateTime.Now==指定时间) 提示声音
};
tmr.Start();

[热学沸腾56]

timer...lz要是想显示的话，还可以画出来..

[Roc_Lee]

用timer。

[loveluo616]

用time我也会呀 就是实现不了呀 我也说不清楚了 还是那位大哥帮帮忙吧 实在是头疼呀 最好是完整的代码呀 感激不尽 还可以再加分！

[jcyluck]

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


namespace WindowsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        DateTime start;
        Timer ti = new Timer();
        private void Form1_Load(object sender, EventArgs e)
        {
            start = DateTime.Parse("00:00:01");//倒计时开始时间
            calculagraph(500);//假设500毫秒跳表一次
        }
        private void calculagraph(int interval)
        {

            ti.Interval = interval;
            ti.Tick += new EventHandler(ti_Tick);
            ti.Start();      
        }

        [DllImport("kernel32.dll")]
        public static extern bool Beep(int f, int d);
        void ti_Tick(object sender, EventArgs e)
        {
            Timer ti1 = sender as Timer;
            start = start.AddMilliseconds(-ti.Interval);
            textBox1.Text = start.ToString("mm:ss:ffff");
            if (textBox1.Text =="00:00:0000")
            {
                ti.Stop();
                //MessageBox.Show("时间到");
                Beep(800,3000);
            }
        }
    }
}

上面代码你在窗口加上一个TEXTBOX控件就行
另外声音提示的方法有很多种
你可以GOOGLE一下

[wartim]

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

namespace WindowsApplication19
{
    public partial class Form1 : Form
    {
        [DllImport("kernel32.dll")]
        private static extern bool Beep(int freq, int dur);
       
        public Form1()
        {
            InitializeComponent();
            label1.Text  = "还剩01分10秒";
            timer1.Interval = 1000;
            timer1.Enabled = true;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            DateTime DT = DateTime.ParseExact(label1.Text, "还剩mm分ss秒", null);
            DT = DT.AddSeconds(-1);
            label1.Text = DT.ToString("还剩mm分ss秒");
            if (DT.Minute == 0 && DT.Second == 0)
            {
                timer1.Enabled = false;
                Beep(800, 300); // 机箱蜂鸣器发"di"的一声
            }
        }
    }
}

[zzxap]

http://download.csdn.net/down/450065/love8872

[code=HTML]

<form name="form1">
<div align="center" align="middle">
<center>离2010年还有:<br>
<input type="textarea" name="left" size="35" style="text-align: center">
</center>
</div>
</form>
<script LANGUAGE="javascript">
startclock()
var timerID = null;
var timerRunning = false;
function showtime() {
Today = new Date();
var NowHour = Today.getHours();
var NowMinute = Today.getMinutes();
var NowMonth = Today.getMonth();
var NowDate = Today.getDate();
var NowYear = Today.getYear();
var NowSecond = Today.getSeconds();
if (NowYear <2000)
NowYear=1900+NowYear;
Today = null;
Hourleft = 23 - NowHour
Minuteleft = 59 - NowMinute
Secondleft = 59 - NowSecond
Yearleft = 2009 - NowYear
Monthleft = 12 - NowMonth - 1
Dateleft = 31 - NowDate
if (Secondleft<0)
{
Secondleft=60+Secondleft;
Minuteleft=Minuteleft-1;
}
if (Minuteleft<0)
{
Minuteleft=60+Minuteleft;
Hourleft=Hourleft-1;
}
if (Hourleft<0)
{
Hourleft=24+Hourleft;
Dateleft=Dateleft-1;
}
if (Dateleft<0)
{
Dateleft=31+Dateleft;
Monthleft=Monthleft-1;
}
if (Monthleft<0)
{
Monthleft=12+Monthleft;
Yearleft=Yearleft-1;
}
Temp=Yearleft+'年, '+Monthleft+'月, '+Dateleft+'天, '+Hourleft+'小时, '+Minuteleft+'分, '+Secondleft+'秒'
document.form1.left.value=Temp;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
}
var timerID = null;
var timerRunning = false;
function stopclock () {
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}
function startclock () {
stopclock();
showtime();
}
// -->
</script>
[/CODE]

[修改一下昵称]

[Quote=引用 12 楼 wartim 的回复:]
C# codeusing System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;

namespace WindowsApplication19
{
public partial class Form1 : Form
{
[DllImport("kernel32.dll")]
private static extern bool Beep(int freq, int dur);
…
[/Quote]
正解！

[loveluo616]

有哪位大哥能帮忙写个完整的呀

[sushou2009]

[Quote=引用 2 楼 zgke 的回复:]
你自己写写把 这东西不难把..


使用Timer和 TimeSpan很简单的.
private void Form1_Load(object sender, EventArgs e)
{
_Timer.Interval = 1000;
_Timer.Tick += new EventHandler(_Timer_Tick);
_Timer.Enabled = true;
}
private Timer _Timer = new Timer();
private TimeSpan _TimSpan = ne…
[/Quote]
出来大半了~

[LGP88864237]

学习中