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关于javascript倒计时代码的信息

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用js写倒计时~但规定要用以下代码~求助

SCRIPT LANGUAGE="JavaScript"

!--

var maxtime = 60*60;//60*60 //一个小时，按秒计算，自己调整!

function CountDown(){

if(maxtime=0){

//minutes = Math.floor(maxtime/60);

seconds = Math.floor(maxtime%60);

//msg = "距离结束还有"+minutes+"分"+seconds+"秒";

msg = "距离结束还有"+seconds+"秒";

document.all["timer"].innerHTML=msg;

if(maxtime == 5*60){

alert('注意，还有5分钟!');

}

--maxtime;

}else{

clearInterval(timer);

//alert("时间到，结束!");

maxtime=60*60;

timer = setInterval("CountDown()",1000);

}

}

timer = setInterval("CountDown()",1000);

//--

/SCRIPT

div id="timer" style="color:red"/div

SCRIPT LANGUAGE="JavaScript"

!--

var maxtime = 5*60;//60*60 //一个小时，按秒计算，自己调整!

var timer;

function CountDown(){

if(maxtime=0){

var minutes = Math.floor(maxtime/60);

var seconds = Math.floor(maxtime%60);

var msg = "距离刷新还有"+minutes+"分"+seconds+"秒";

$('#timer').html(msg);

//document.all["timer"].innerHTML=msg;

--maxtime;

}else{

clearInterval(timer);

//一下两个方法是倒计时结束后调用的方法

searchTaskList();

myajax();

//设置下一次的倒计时

maxtime=5*60;

timer = setInterval("CountDown()",1000);

}

}

timer = setInterval("CountDown()",1000);

//--

/SCRIPT

div id="timer" style="display:inline;color:red"/div

相关问答

Q1: Javascript实例之如何实现时间倒计时

给你一个实例

调用的时候直接写resetTime（这里传入你要倒计时的数字）

本答案出自“我要编程”软件开发师训练平台免费课程。

//单纯分钟和秒倒计时

function resetTime(time){

  var timer=null;

  var t=time;

  var m=0;

  var s=0;

  m=Math.floor(t/60%60);

  m10(m='0'+m);

  s=Math.floor(t%60);

  function countDown(){

   s--;

   s10(s='0'+s);

   if(s.length=3){

    s=59;

    m="0"+(Number(m)-1);

   }

   if(m.length=3){

    m='00';

    s='00';

    clearInterval(timer);

   }

   console.log(m+"分钟"+s+"秒");

  }

  timer=setInterval(countDown,1000);

}

Q2: 网页点击按钮开始一小时倒计时的JavaScript代码

!DOCTYPE html

html

  head

meta http-equiv="Content-Type" content="text/html; charset=UTF-8"

title/title

script

var interval;

var djs = function(){

if(!!interval) return;

var d = new Date("1111/1/1,1:0:0");

result.innerHTML = d.getHours() + "时" 

+ d.getMinutes() + "分" + d.getSeconds() + "秒";

interval = setInterval(function(){

if(d.getHours() ==0d.getMinutes()==0d.getSeconds()==0) {

clearInterval(interval);

interval =null;

 

}

result.innerHTML = d.getHours() + "时" 

+ d.getMinutes() + "分" + d.getSeconds() + "秒";

d.setSeconds(d.getSeconds() - 1);

},1000);

}  

/script

  /head

body

     div id="result"

 

/div

button onclick="djs()"

倒计时

/button

  /body

/html

Q3: 谁能给我一个倒计时的代码啊？

第一种：精确到秒的javascript倒计时代码

HTML代码:

form name="form1"

div align="center" align="center"

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 (Secondleft0)

{

Secondleft=60+Secondleft;

Minuteleft=Minuteleft-1;

}

if (Minuteleft0)

{

Minuteleft=60+Minuteleft;

Hourleft=Hourleft-1;

}

if (Hourleft0)

{

Hourleft=24+Hourleft;

Dateleft=Dateleft-1;

}

if (Dateleft0)

{

Dateleft=31+Dateleft;

Monthleft=Monthleft-1;

}

if (Monthleft0)

{

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

第二种：某某运动会

HTML代码:

!--倒计时Javascript begin--

script language="JavaScript"

!--

function DigitalTime1()

{

var deadline= new Date("08/13/2007") //开幕倒计时

var symbol="8月13日"

var now = new Date()

var diff = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差

var leave = (deadline.getTime() - now.getTime()) + diff*60000

var day = Math.floor(leave / (1000 * 60 * 60 * 24))

var hour = Math.floor(leave / (1000*3600)) - (day * 24)

var minute = Math.floor(leave / (1000*60)) - (day * 24 *60) - (hour * 60)

var second = Math.floor(leave / (1000)) - (day * 24 *60*60) - (hour * 60 * 60) - (minute*60)

var deadline_2= new Date("08/13/2004") //开幕后计时

var symbol_2="8月13日"

var now_2 = new Date()

var diff_2 = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差

var leave_2 = (now_2.getTime() - deadline_2.getTime()) + diff_2*60000

var day_2 = Math.floor(leave_2 / (1000 * 60 * 60 * 24))

var hour_2 = Math.floor(leave_2 / (1000*3600)) - (day_2 * 24)

var minute_2 = Math.floor(leave_2 / (1000*60)) - (day_2 * 24 *60) - (hour_2 * 60)

var second_2 = Math.floor(leave_2 / (1000)) - (day_2 * 24 *60*60) - (hour_2 * 60 * 60) - (minute_2*60)

day=day+1;

day_2=day_2+1;

if (day0) //还未开幕

{

//LiveClock1.innerHTML = "现在"+symbol+"天"

LiveClock1.innerHTML = "font

setTimeout("DigitalTime1()",1000)

}

if (day0) //已经开幕

{

//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"

LiveClock1.innerHTML = "font

setTimeout("DigitalTime1()",1000)

}

if (day==0) //正在开幕

{

//LiveClock1.innerHTML = "现在"+symbol+"天"

LiveClock1.innerHTML = "font

setTimeout("DigitalTime1()",1000)

}

if (day0 day_219) //某某运动会结束

{

//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"

LiveClock1.innerHTML = "font

setTimeout("DigitalTime1()",1000)

}

}

// --

/script

!--倒计时Javascript end--

body onload=DigitalTime1()

div id= LiveClock1/div

/body 第三种：小时倒计时

HTML代码:

SCRIPT LANGUAGE="JavaScript"

!--

var maxtime = 60*60 //一个小时，按秒计算，自己调整!

function CountDown(){

if(maxtime=0){

minutes = Math.floor(maxtime/60);

seconds = Math.floor(maxtime%60);

msg = "距离结束还有"+minutes+"分"+seconds+"秒";

document.all["timer"].innerHTML=msg;

if(maxtime == 5*60) alert('注意，还有5分钟!');

--maxtime;

}

else{

clearInterval(timer);

alert("时间到，结束!");

}

}

timer = setInterval("CountDown()",1000);

//--

/SCRIPT

div id="timer" style="color:red"/div

第四种：最简倒计时

HTML代码:

Script Language="JavaScript"

!-- Begin

var timedate= new Date("January 14,2006");

var times="研究生考试";

var now = new Date();

var date = timedate.getTime() - now.getTime();

var time = Math.floor(date / (1000 * 60 * 60 * 24));

if (time = 0) ;

document.write("lifont color=#DEDBDE现在离2006年"+times+"还有: font color=#ffffffb"+time +"/b/font 天/font/li");

// End --

/Script

第五种：最简倒计时二

HTML代码:

script language="JavaScript" type="text/javascript"

function djs(){

var urodz= new Date("11/12/2008");　

var now = new Date();

var num

var ile = urodz.getTime() - now.getTime();

var dni = Math.floor(ile / (1000 * 60 * 60 * 24));

if (dni 1)

num=dni+1

else if (dni == 1)　num=2　

else if (dni == 0)　num=1

else num=0　

document.write(num)

}

/script

距某某开幕式还有 [script language="JavaScript" type="text/javascript"djs()/script] 天

第五个：Javascript倒计时器 - 采用系统时间自校验

这次利用系统时间自校验倒计时, 无需手工调校使得倒计时更为精确, 代码及详细注释如下:

span id="clock"00:01:11:00/span

input id="startB" type="button" value="start countdown!" onclick="run()"

input id="endB" type="button" value="stop countdown!" onclick="stop()"

br

input id="diff" type="text"

input id="next" type="text"

script language="Javascript"

/* This notice must be untouched at all times.

countdown.js v. 1.0

The latest version is available at

Copyright (c) 2004 Xinyi.Chen. All rights reserved.

Created 7/30/2004 by Xinyi.Chen.

Web:

E-Mail: chenxinyi1978@hotmail.com

Last modified: 7/30/2004

This program is free software;

you can redistribute it and/or modify it under the terms of the

GNU General Public License as published by the Free Software Foundation;

See the GNU General Public License

at for more details.

*/

var normalelapse = 100;

var nextelapse = normalelapse;

var counter;

var startTime;

var start = clock.innerText;

var finish = "00:00:00:00";

var timer = null;

// 开始运行

function run() {

startB.disabled = true;

endB.disabled = false;

counter = 0;

// 初始化开始时间

startTime = new Date().valueOf();

// nextelapse是定时时间, 初始时为100毫秒

// 注意setInterval函数: 时间逝去nextelapse(毫秒)后, onTimer才开始执行

timer = window.setInterval("onTimer()", nextelapse);

}

// 停止运行

function stop() {

startB.disabled = false;

endB.disabled = true;

window.clearTimeout(timer);

}

window.onload = function() {

endB.disabled = true;

}

// 倒计时函数

function onTimer()

{

if (start == finish)

{

window.clearInterval(timer);

alert("time is up!");

return;

}

var hms = new String(start).split(":");

var ms = new Number(hms[3]);

var s = new Number(hms[2]);

var m = new Number(hms[1]);

var h = new Number(hms[0]);

ms -= 10;

if (ms 0)

{

ms = 90;

s -= 1;

if (s 0)

{

s = 59;

m -= 1;

}

if (m 0)

{

m = 59;

h -= 1;

}

}

var ms = ms 10 ? ("0" + ms) : ms;

var ss = s 10 ? ("0" + s) : s;

var sm = m 10 ? ("0" + m) : m;

var sh = h 10 ? ("0" + h) : h;

start = sh + ":" + sm + ":" + ss + ":" + ms;

clock.innerText = start;

// 清除上一次的定时器

window.clearInterval(timer);

// 自校验系统时间得到时间差, 并由此得到下次所启动的新定时器的时间nextelapse

counter++;

var counterSecs = counter * 100;

var elapseSecs = new Date().valueOf() - startTime;

var diffSecs = counterSecs - elapseSecs;

nextelapse = normalelapse + diffSecs;

diff.value = counterSecs + "-" + elapseSecs + "=" + diffSecs;

next.value = "nextelapse = " + nextelapse;

if (nextelapse 0) nextelapse = 0;

// 启动新的定时器

timer = window.setInterval("onTimer()", nextelapse);

}

/script

Q4: JS 5秒倒计时的代码怎么写？时间要实时显示在屏幕上的。

!DOCTYPE html

html lang="en"

head

meta http-equiv="Content-Type" content="text/html; charset=utf-8" /

titlejs实现倒计时60秒的简单代码(推荐)/title

script type="text/javascript" src="js/jquery.js"/script

/head

body

input type="button" id="btn" value="免费获取验证码" onclick="settime(this)" /

script type="text/javascript"

var countdown=60;

function settime(val) {

if (countdown == 0) {

val.removeAttribute("disabled");

val.value="免费获取验证码";

countdown = 5;

} else {

val.setAttribute("disabled", true);

val.value="重新发送(" + countdown + ")";

countdown--;

setTimeout(function() {

settime(val)

},1000)

}

}

/script

/body

/html

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JavaScript 是一种轻量级的编程语言。

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