Question

您好，就是倒计时JS，到各位数的时候前面加个0怎么弄，下面是代码

<script language=JavaScript>
var now = new Date();
function GetServerTime()
{
var urodz = new Date("12/10/2012 23:59:59");
now.setTime(now.getTime()+250);
days = (urodz - now) / 1000 / 60 / 60 / 24;
daysRound = Math.floor(days);
hours = (urodz - now) / 1000 / 60 / 60 - (24 * daysRound);
hoursRound = Math.floor(hours);
minutes = (urodz - now) / 1000 /60 - (24 * 60 * daysRound) - (60 * hoursRound);
minutesRound = Math.floor(minutes);
seconds = (urodz - now) / 1000 - (24 * 60 * 60 * daysRound) - (60 * 60 * hoursRound) - (60 * minutesRound);
secondsRound = Math.round(seconds);
document.getElementById("date").innerHTML = daysRound;
document.getElementById("time").innerHTML = hoursRound+ ":" + minutesRound + ":" + secondsRound;
}
setInterval("GetServerTime()",250);
</script>
<span id="date"></span>

Answer 1

function addZero(num){return num<10?'0'+num:num}
将SecondsRound等改顷禅为addZero(SecondsRound)即可，雹雹望采源乎帆纳

Answer 2

加 if（）判断啊~~
if（hoursRound<10）{
str = "0"薯返斗数磨+hoursRound;

}
然后世茄打印str就行了~~