本文目录一览：
- 1、还是关于JavaScript中倒计时的问题
- 2、初学javascript，要求编写一个倒计时，格式如00:00:00该怎么实现？时间是自己设定，想设置多少秒就多少秒
- 3、求JS倒计时程序(高分)
- 4、谁能给我一个倒计时的代码啊？
- 5、怎样用javascript写倒计时
还是关于JavaScript中倒计时的问题
剩余时间保存在cookie里面就可以：
一、页面显示剩余时间的时候，先检查cookie里面是否有值，为空才从3599开始，否则使用cookie的数值；
二、每次剩余时间更新时候，同时修改cookie数值
初学javascript，要求编写一个倒计时，格式如00:00:00该怎么实现？时间是自己设定，想设置多少秒就多少秒
我也是业余爱好者, 以下试编写脚本如下:
html
head
title倒计时测试/title
script language="JavaScript"
var DifferenceHour = -1;
var DifferenceMinute = -1;
var DifferenceSecond = -1;
var Tday = new Date(2012,2,10,22,0,0,0); //倒计时时间点-年,月,日,时,分,秒,毫秒
var DAY_MS = 24 * 60 * 60 * 1000;
var HOUR_MS = 60 * 60 * 1000;
var SECOND_MS = 60 * 1000;
var MS = 1000;
function formatstr(value)
{
return (value9)?"0"+value:value;
}
function clock()
{
var time = new Date();
if(Tday.getTime()time.getTime())
{
alert("当前倒计时已终止!");
return;
};
var nowtime = time.toLocaleString();
var totime = Tday.toLocaleString();
var Diffms = Tday.getTime() - time.getTime(); //毫秒差
DifferenceHour = Math.floor(Diffms / DAY_MS); //转换成小时
Diffms -= DifferenceHour * DAY_MS;
DifferenceMinute = Math.floor(Diffms / HOUR_MS); //转换成分钟
Diffms -= DifferenceMinute * HOUR_MS;
DifferenceSecond = Math.floor(Diffms / SECOND_MS); //转换成秒
Diffms -= DifferenceSecond * SECOND_MS;
var dSecs = Math.floor(Diffms / MS); //转换成毫秒
var havetime = formatstr(DifferenceMinute)+" : "+formatstr(DifferenceSecond)+" : "+formatstr(dSecs);
document.formnow.totime.value = totime;
document.formnow.nowtime.value = nowtime;
document.formnow.havetime.value = havetime;
setTimeout("clock()",1000);
}
/script
/head
!--BODY里面的ONLOAD注意--
body onload="clock();return true" text="red"
!--实现显示--
form name="formnow"
!--input name="dd" type="text" style="border:0;" size=2
天--
设定时间:
input name="totime" type="text" style="border:0;" size=25 /
br /
当前时间:
input name="nowtime" type="text" style="border:0;" size=25 /
br /br /
倒计时时间:
input name="havetime" type="text" style="border:0;" size=25 /
br /
/form
求JS倒计时程序(高分)
倒计时生成器JS脚本
说明: 用来生成倒计时JS代码的脚本
效果: 点这里在新窗口中看效果！
代码: 要完成此效果需要两个步骤
第一步：把如下代码加入到head区域中
SCRIPT language=javascript
!--
function generate(form){
for(var q=0;q12;q++){
if(document.me.m.options[document.me.m.selectedIndex].value==q){
var m2=q+1
}
var txt='!-- 要完成此效果需要三个步骤:\r\n\r\n'
+' 1. 将第一部分粘贴到HTML的HEAD区\r\n'
+' 2. 将OnLoad事件加入BODY标签内\r\n'
+' 3. 将最后一部分代码加入BODY区 --\r\n\r\n'
+'!-- 第一步: 将如下代码加入到HEAD区域中--\r\n\r\n'
+'HEAD\r\n\r\nSCRIPT LANGUAGE="JavaScript"\r\n\r\n'
+'!-- Begin\r\n'
+'var Temp2;\n'
+'var timerID = null;\n'
+'var timerRunning = false;\n'
+'function arry() {\n'
+'this.length = 12;\n'
+'this[0] = 31;\n'
+'this[1] = 28;\n'
+'this[2] = 31;\n'
+'this[3] = 30;\n'
+'this[4] = 31;\n'
+'this[5] = 30;\n'
+'this[6] = 31;\n'
+'this[7] = 31;\n'
+'this[8] = 30;\n'
+'this[9] = 31;\n'
+'this[10] = 30;\n'
+'this[11] = 31;\n'
+'}\n'
+'var date = new arry();\n'
+'\n'
+'function stopclock() {\n'
+'if(timerRunning)\n'
+'clearTimeout(timerID);\n'
+'timerRunning = false;\n'
+'}\n'
+'\n'
+'function startclock() {\n'
+'stopclock();\n'
+'showtime();\n'
+'}\n'
+'\n'
+'function showtime() {\n'
+'now = new Date();\n'
+'var CurMonth = now.getMonth();\n'
+'var CurDate = now.getDate();\n'
+'var CurYear = now.getFullYear();\n'
+'now = null;\n'
+'if ('+document.me.d.options[document.me.d.selectedIndex].value+'CurDate) {\n'
+'CurDate -= date[CurMonth]; CurMonth++;\n'
+'}\n'
+'if ('+document.me.m.options[document.me.m.selectedIndex].value+' CurMonth) {\n'
+'CurMonth -= 12; CurYear++;\n'
+'}\n'
+'\n'
+'var Yearleft = '
+document.me.y.options[document.me.y.selectedIndex].value+' - CurYear;\n'
+'var Monthleft = '
+document.me.m.options[document.me.m.selectedIndex].value+' - CurMonth;\n'
+'var Dateleft = '
+document.me.d.options[document.me.d.selectedIndex].value+' - CurDate;\n'
+'\n'
+'document.dateform.a.value = Yearleft;\n'
+'document.dateform.b.value = Monthleft;\n'
+'document.dateform.c.value = Dateleft;\n'
+'\n'
+'timerID = setTimeout("showtime()",1000);\n'
+'timerRunning = true;\n'
+'}\n'
+'/\/ End --\r\n\/script\r\n'
+'\/H'+'EAD\r\n\r\n'
+'!-- 第二步：把OnLoad事件加在BODY标记里 --\r\n\r\n'
+'BO'+'DY Onload="startclock()"\r\n\r\n'
+'!-- 第三步：把如下代码加入到BODY区域中 --\r\n\r\n'
+'form name=dateform距离'
+m2+'/'+document.me.d.options[document.me.d.selectedIndex].value+'/'
+document.me.y.options[document.me.y.selectedIndex].value
+'还有\n'
+'input type=text name=a size=2 value=""年\n'
+'input type=text name=b size=2 value=""月\n'
+'input type=text name=c size=2 value=""天\n'
+'/fo'+'rm\r\n\r\n'
+''+'!-- 代码长度: 1.95 KB --'+''
;}document.mail.source.value=txt;document.mail.source2.value=txt;}
//--
/SCRIPT
第二步：把如下代码加入到body区域中
div align="center"
table border=5 bordercolor=#000000 borderlight=green
tr
td align=centerfont size="4" color="#CCCC00" face="楷体_GB2312"
倒计时JS代码生成器/font
/td
/tr
tr
td align=center
form name=me
p
select name=m size=1
option value=0January /option
option value=1February /option
option value=2March /option
option value=3April /option
option value=4May /option
option value=5June /option
option value=6July /option
option value=7August /option
option value=8September /option
option value=9October /option
option value=10November /option
option value=11December /option
/select
select name=d size=1
option value=11 /option
option value=22 /option
option value=33 /option
option value=44 /option
option value=55 /option
option value=66 /option
option value=77 /option
option value=88 /option
option value=99 /option
option value=1010 /option
option value=1111 /option
option value=1212 /option
option value=1313 /option
option value=1414 /option
option value=1515 /option
option value=1616 /option
option value=1717 /option
option value=1818 /option
option value=1919 /option
option value=2020 /option
option value=2121 /option
option value=2222 /option
option value=2323 /option
option value=2424 /option
option value=2525 /option
option value=2626 /option
option value=2727 /option
option value=2828 /option
option value=2929 /option
option value=3030 /option
option value=3131 /option
/select
select name=y size=1
option value=19991999 /option
option value=20002000 /option
option value=20012001 /option
option value=20022002 /option
option value=20032003 /option
option value=20042004 /option
option value=20052005 /option
option value=20062006 /option
option value=20072007 /option
option value=20082008 /option
option value=20092009 /option
/selectbr
input type=button onclick=generate() value=生成代码 class=yk9
p/p
/form
form name=mail
input type=hidden name=scriptname value="Countdown Creator"
input type=hidden name=source2 value
table bgcolor=dedfdf border=1 cellpadding=1 width=396
tr
td align=center height=218
textarea name=source rows=12 cols=55 class=yk9
/textarea
brbr/td
td/td
/tr
/table
/form
/td
/tr
/table
/div
参考资料：
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
怎样用javascript写倒计时
form name="form1" action=""
div align="center" align="middle"
center离2010年还有:br
input type="textarea" name="left" size="35" style="text-align: center" mce_style="text-align: center"
/center
/div
/form
mce: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();
}
// --/mce:script
别地方复制的，测试有效
你把里面的时间数据改成你想要的结果就可以了
