javascript實(shí)現(xiàn)高考倒計(jì)時(shí)效果

script

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var d=new Date();

var dt=new Date();

dt.setFullYear(d.getFullYear(),5,7);

if(dtd)

{

dt.setFullYear(d.getFullYear()+1,5,7);

}

document.write("離高考還有"+(dt-d)/3600/24/1000+"天");

/script

改了，加了個(gè)判斷。剛理解錯(cuò)了。。

如何用js實(shí)現(xiàn)高考倒計(jì)時(shí)

這是2014年高考倒計(jì)時(shí)的代碼，可以自己修改只需要更改BirthDay=new Date("7-6-2014"); 里面的數(shù)字就可以。測試可用。

!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ""

html xmlns=""

head

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

title無標(biāo)題文檔/title

/head

body onload="show_date_time()"

SCRIPT language=javascript

function show_date_time(){

window.setTimeout("show_date_time()", 1000);

BirthDay=new Date("7-6-2014");

today=new Date();

timeold=(BirthDay.getTime()-today.getTime());

sectimeold=timeold/1000

secondsold=Math.floor(sectimeold);

msPerDay=24*60*60*1000

e_daysold=timeold/msPerDay

daysold=Math.floor(e_daysold);

e_hrsold=(e_daysold-daysold)*24;

hrsold=Math.floor(e_hrsold);

e_minsold=(e_hrsold-hrsold)*60;

minsold=Math.floor((e_hrsold-hrsold)*60);

seconds=Math.floor((e_minsold-minsold)*60);

span_dt_dt.innerHTML="balign=centerfont color=00CC00"+daysold+"天"+hrsold+"小時(shí)"+minsold+"分"+seconds+"秒"+"/bbr/font" ;

}

/SCRIPT

balign=centerfont color=#ffffff高考倒計(jì)時(shí)還有：/b/font

span id="span_dt_dt" style='align=center no:1px solid black;background-color:#FFFFFF' /span

/body

/html

求倒計(jì)時(shí)代碼，js，php都行。格式： 距高考還有 145 天

!DOCTYPE?html

html

head

meta?charset="utf-8"

script?type="text/javascript"

window.onload?=?function(){

function?DistenceOfDate(year,month,day,hour,minute,seconds)?{

var?date?=?new?Date();

var?dateMill?=?date.getTime();

var?targetDate?=?new?Date(year,(month?-1),day,hour,minute,seconds);

var?targetMill?=?targetDate.getTime();

var?perDay?=?3600?*?1000?*?24;

var?perHour?=?3600*1000;

var?perMin?=?60000;

var?perSec?=?1000;

var?offset?=?targetMill?-?dateMill?;

var?tmp?=??offset?%?perDay;

var?days?=?parseInt(offset?/?perDay);

log(days);

var?offsetHour?=?tmp?%?perHour?;

var?hours?=?parseInt(tmp/?perHour);

log(hours);

var?offsetMin?=?offsetHour?%?perMin?;

var?min?=?parseInt(offsetHour?/perMin?);

log(min);

var?offsetSec?=?offsetMin?%?perSec?;

var?secs?=?parseInt(offsetMin?/perSec?);

log(secs);

log(offsetSec);

function?log?(str){

console.log(str);

}

return{

day:days,

h:hours,

m:min,

s:secs,

ms:offsetSec

}

}

setInterval(function(){

var?obj??=?DistenceOfDate(2014,11,30,00,00,00);

document.querySelector("#msg.msg").innerHTML?="距離?2014年11月30日0時(shí)0分0秒還有：/br"+obj.day+"?天?"+obj.h+"?小時(shí)?"+obj.m+"?分鐘"+

obj.s+"秒?";

},1000);

}

/script

style?type="text/css"

.msg{

width:?100%;

height:?40px;

background:?#1990d5;

color:#FBBDEE;

text-align:?center;

}

/style

/head

body

div?id="msg"?class="msg"/div

/body

/html

剛寫的熱乎的。程序精確到秒啦

求一個(gè)高考倒計(jì)時(shí)的js代碼，加解釋????

var scount = 0;

$(function () {

var start = setInterval(function () {

var dtstr = "";

var now = new Date();//初始化當(dāng)前時(shí)間

var newdatr = new Date(now.getFullYear(), "05", "07", "00", "00", "00", "00");//初始化目標(biāo)時(shí)間(這里的05實(shí)際上是六月)

var nowhms = now.getTime();//當(dāng)前時(shí)間轉(zhuǎn)換毫秒

var newhms = newdatr.getTime();//目標(biāo)時(shí)間轉(zhuǎn)換毫秒

var cha = newhms - nowhms;//時(shí)間差（毫秒數(shù)）

if (cha 0) {

var day = parseInt(cha / (1000 * 60 * 60 * 24));//計(jì)算天數(shù)

var hh = parseInt((cha % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));//計(jì)算小時(shí)

var min = parseInt(((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) / (1000 * 60));//計(jì)算分鐘

var ss = parseInt((((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) % (1000 * 60)) / 1000);//計(jì)算秒

if (ss == 0) {

scount += 1;

}

//var ms = parseInt((((cha % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) % (1000 * 60)) % 1000);

dtstr = day + "天" + hh + "小時(shí)" + min + "分鐘" + ss + "秒";//+ ms + "毫秒";

}

$("#timestr").html(dtstr);

$("#flag").html("你已經(jīng)續(xù)了" + scount + "分鐘。");

}, 1000);

});