带天数的倒计时

function countDown(dateline){

    var timer=null,

        //倒计时

        current_time=Math.floor(new Date().getTime()/1000),

        times=dateline-current_time;

    if(times>0){

        timer=setInterval(function(){

            var day=0,

                hour=0,

                minute=0,

                second=0;//时间默认值

            if(times > 0){

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

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

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

                second = Math.floor(times) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60);

            }

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

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

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

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

            //

            $('#day').html(day);

            $('#hour').html(hour);

            $('#minute').html(minute);

            $('#second').html(second);

            times--;

        },1000);

        if(times<=0){

            clearInterval(timer);

        }

    }else{

        $('#day').html('00');

        $('#hour').html('00');

        $('#minute').html('00');

        $('#second').html('00');

    }

}
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带天数的倒计时

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