引入js
将以下代码加入到<head>中。对于本主题，依次进入控制台-外观-设置外观-主题自定义扩展，加入到自定义HTML元素拓展-标签:head头部(meta 元素后)，也可直接加入到主题对应的header.php中的</head>标签前。开始时间和中文提示可自定义。
<script>
document.addEventListener('DOMContentLoaded', initLiveDay);
function initLiveDay() {
const birthTime = '2015/2/21 10:23:12';
const template = (A, B, C, D) => `本站已勉强生存 ${A}天 ${B}时 ${C}分 ${D}秒.`;
/* 锚点开始 */
const container = footer.querySelector('.container');
const p = document.createElement('p');
container.insertBefore(p, container.firstElementChild);
/* 锚点结束*/
const msoad = 24 * 60 * 60 * 1000;
const warp = n => n > 9 ? n : '0' + n;
const toInt = n => warp(Math.floor(n));
setInterval(() => {
const lived = new Date() - new Date(birthTime);
const days = lived / msoad;
const intDays = toInt(days);
const hours = (days - intDays) * 24;
const intHours = toInt(hours);
const minutes = (hours - intHours) * 60;
const intMinutes = toInt(minutes);
const seconds = (minutes - intMinutes) * 60;
const intSeconds = toInt(seconds);
p.innerHTML = template(intDays, intHours, intMinutes, intSeconds);
}, 1000);
}
</script>