html读秒倒计时,jQuery实现读秒倒计时

xmlns="http://www.w3.org/1999/xhtml">

content="text/html; charset=utf-8" />

type="text/css">

h1{font-family:"微软雅黑";font-size:40px;margin:50px

0;;border-bottom:solid 1px

#ccc;padding-bottom:20px;letter-spacing:2px;}

.time-item

strong{background:#C71C60;color:#fff;line-height:49px;font-size:36px;font-family:Arial;padding:0

10px;margin-right:10px;border-radius:5px;box-shadow:1px 1px 3px

rgba(0,0,0,0.2);}

#day_show{float:left;line-height:49px;color:#c71c60;font-size:32px;margin:0

10px;font-family:Arial, Helvetica, sans-serif;}

.item-title

.unit{background:none;line-height:49px;font-size:24px;padding:0

10px;float:left;}

src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js">

type="text/javascript">

var intDiff = parseInt(600000);//倒计时总秒数量

function timer(intDiff){

window.setInterval(function(){

var day=0,

hour=0,

minute=0,

second=0;//时间默认值

if(intDiff > 0){

day = Math.floor(intDiff / (60 * 60 * 24));

hour = Math.floor(intDiff / (60 * 60)) - (day * 24);

minute = Math.floor(intDiff / 60) - (day * 24 * 60) - (hour *

60);

second = Math.floor(intDiff) - (day * 24 * 60 * 60) - (hour *

60 * 60) - (minute * 60);

}

if (minute <= 9) minute = '0' + minute;

if (second <= 9) second = '0' + second;

$('#day_show').html(day+"天");

$('#hour_show').html('>'+hour+'时');

$('#minute_show').html(''+minute+'分');

$('#second_show').html('>'+second+'秒');

intDiff--;

}, 1000);

}

$(function(){

timer(intDiff);

});

网页上的倒计时

id="day_show">0天

id="hour_show">0时

id="minute_show">0分

id="second_show">0秒