var times=100000;
function countDown(times){
var timer=null;
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 / (60 * 60)) - (day * 24);
minute = Math.floor(times / 60) - (day * 24 * 60) - (hour * 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;
//
console.log(day+"天:"+hour+"小时："+minute+"分钟："+second+"秒");
document.getElementById("spanTime").innerHTML = day+"天 "+hour+"小时："+minute+"分钟："+second+"秒";
times--;
},1000);
if(times<=0){
clearInterval(timer);
}
}
countDown(times);
