页脚添加建站时长

footer:
  owner:
    enable: false
    since: 2021
-  custom_text: 
+  custom_text: <div id="runtime"></div>
  copyright: false # Copyright of theme and framework

setInterval(() => {
    // let create_time = Math.round(new Date('2021-10-15 00:00:00').getTime() / 1000); //在此行修改建站时间
    // 有苹果用户发现safari浏览器不能正常运行，百度了一下发现是格式化的问题，改成下面这种应该就可以了。感谢反馈。
    let create_time = Math.round(new Date('2021/10/15 00:00:00').getTime() / 1000); //在此行修改建站时间
    let timestamp = Math.round((new Date().getTime()) / 1000);
    let second = timestamp - create_time;
    let time = new Array(0, 0, 0, 0, 0);

    var nol = function(h) {
        return h > 9 ? h : '0' + h;
    }
    if (second >= 365 * 24 * 3600) {
        time[0] = parseInt(second / (365 * 24 * 3600));
        second %= 365 * 24 * 3600;
    }
    if (second >= 24 * 3600) {
        time[1] = parseInt(second / (24 * 3600));
        second %= 24 * 3600;
    }
    if (second >= 3600) {
        time[2] = nol(parseInt(second / 3600));
        second %= 3600;
    }
    if (second >= 60) {
        time[3] = nol(parseInt(second / 60));
        second %= 60;
    }
    if (second >= 0) {
        time[4] = nol(second);
    }
    let currentTimeHtml = ""
    if (time[0] != 0) {
        currentTimeHtml += time[0] + ' YEAR '
    }
    currentTimeHtml += time[1] + ' DAYS ' + time[2] + ' : ' + time[3] + ' : ' + time[4];
    document.getElementById("runtime").innerHTML = currentTimeHtml;
}, 1000);

div#runtime {
    width: fit-content;
    color: #fff;
    padding: 0 10px;
    border-radius: 10px;
    background-color: rgba(0, 0, 0, 0.7);
    margin: auto;
}

[data-theme="dark"] div#runtime {
    color: #28b4c8;
    box-shadow: 0 0 5px rgba(28, 69, 218, 0.71);
}

inject:
	head:
		- <link rel="stylesheet" href="/css/style.css?1">
		#静态文件后面加个 ？任意内容 可以在每次更新之后用户自动重新请求
		#例如添加 ？1，在修改此文件后改成？2，用户访问你的网站时，不会使用本地的缓存，而是请求新的文件
	bottom:
		- <script src="/js/script.js?1"></script>
		- <script src="/js/script1.js?1"></script>