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JQuery按照指定长度为数字前面补零
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function PrefixInteger(num, length) {
return (Array(length).join('0') + num).slice(-length);
}PrefixInteger(8,2); 返回08，表示长度为2，数字8前面补一个0。
JQuery倒计时
var rest = 4350859; //时间戳
console.log(rest);
$day = Math.floor(rest/(60*60*24));
console.log($day);
$hour = Math.floor((rest - $day * (60*60*24))/(60*60));
console.log($hour);
$minite = Math.floor((rest - $day * (60*60*24) - $hour * (60*60))/60);
console.log($minite);
$second = Math.floor(rest - $day * (60*60*24) - $hour * (60*60) - $minite * 60);
console.log($second);
$day = PrefixInteger($day,2);
$hour = PrefixInteger($hour,2);
$minite = PrefixInteger($minite,2);
$second = PrefixInteger($second,2);
$("#my_day").html($day);
$("#my_hour").html($hour);
$("#my_minite").html($minite);
$("#my_second").html($second);
window.setInterval(function(){
rest--;
console.log(rest);
$day = Math.floor(rest/(60*60*24));
console.log($day);
$hour = Math.floor((rest - $day * (60*60*24))/(60*60));
console.log($hour);
$minite = Math.floor((rest - $day * (60*60*24) - $hour * (60*60))/60);
console.log($minite);
$second = Math.floor(rest - $day * (60*60*24) - $hour * (60*60) - $minite * 60);
console.log($second);
$day = PrefixInteger($day,2);
$hour = PrefixInteger($hour,2);
$minite = PrefixInteger($minite,2);
$second = PrefixInteger($second,2);
$("#my_day").html($day);
$("#my_hour").html($hour);
$("#my_minite").html($minite);
$("#my_second").html($second);
},1000);
