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javascript实现倒计时（精确到秒）

时间：2015-06-26 11:36来源：a5源码作者：zhao浏览：226

本文给大家分享的是个人项目中使用的javascript实现的精确到秒级的倒计时代码，十分的实用，有需要的小伙伴可以参考下。
……

代码相当简单实用，这里就不多废话了，小伙伴们简单看下就能明白

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

</head>

<body>

<div id="demo01" class="colockbox">剩余

<i class="day">0</i>天

<i class="hour">0</i>时

<i class="minute">0</i>分

<i class="second">0</i>秒

</div>

</div>

var time_end = $('#end_time_gou').val();

var time_now_server = $('#now_gou').val();

countDown(time_end,time_now_server,"#demo01 .day","#demo01 .hour","#demo01 .minute","#demo01 .second");

function countDown(endtime,now,day_elem,hour_elem,minute_elem,second_elem){

var end_time = new Date(endtime).getTime(),//月份是实际月份-1

current_time = new Date(now).getTime(),

sys_second = (end_time-current_time)/1000;

var timer = setInterval(function(){

if (sys_second > 0) {

sys_second -= 1;

var day = Math.floor((sys_second / 3600) / 24);

var hour = Math.floor((sys_second / 3600) % 24);

var minute = Math.floor((sys_second / 60) % 60);

var second = Math.floor(sys_second % 60);

day_elem && $(day_elem).text(day);//计算天

$(hour_elem).text(hour<10?"0"+hour:hour);//计算小时

$(minute_elem).text(minute<10?"0"+minute:minute);//计算分

$(second_elem).text(second<10?"0"+second:second);// 计算秒

} else {

clearInterval(timer);

}

}, 1000);

}

</script>

var time_now_server,time_now_client,time_end,time_server_client,timerID;

time_end=new Date($('#end_time_gou').val());//结束的时间

time_end=time_end.getTime();

time_now_server=new Date($('#now_gou').val());//开始的时间,服务器

time_now_server= time_now_server.getTime();

time_now_client=new Date();

time_now_client=time_now_client.getTime();//本地的时间

time_server_client=time_now_server-time_now_client;

setTimeout("show_time("+time_end+","+time_server_client+","+timerID+")",1000);

function show_time(time_end,time_server_client,timerID){

var timer = document.getElementById('timer');

if(!timer){return;}

timer.innerHTML = timer.innerHTML;

var time_now,time_distance,str_time;

var int_day,int_hour,int_minute,int_second;

var time_now=new Date();

time_now=time_now.getTime()+time_server_client;

time_distance=time_end-time_now;

if(time_distance>0){

int_day=Math.floor(time_distance/86400000)

time_distance-=int_day*86400000;

int_hour=Math.floor(time_distance/3600000)

time_distance-=int_hour*3600000;

int_minute=Math.floor(time_distance/60000)

time_distance-=int_minute*60000;

int_second=Math.floor(time_distance/1000)

if(int_hour<10)

int_hour="0"+int_hour;

if(int_minute<10)

int_minute="0"+int_minute;

if(int_second<10)

int_second="0"+int_second;

str_time=int_day+"天"+int_hour+"小时"+int_minute+"分钟"+int_second+"秒";

timer.innerHTML=str_time;

setTimeout("show_time("+time_end+","+time_server_client+","+timerID+")",1000);

}else{

timer.innerHTML =timer.innerHTML;

clearTimeout(timerID)

}

</script>

</body>

</html>

以上所述就是本文的全部内容了，希望大家能够喜欢。

javascript实现倒计时（精确到秒）

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