html网站运行天数代码,js-网站已运行天数

效果：

纯JS实现，本来是用于一个程序的插件的。

代码：

function NewDate(str) {

str = str.split('-');

var date = new Date();

date.setUTCFullYear(str[0], str[1] - 1, str[2]);

date.setUTCHours(0, 0, 0, 0);

return date;

}

function showsectime() {

var birthDay =NewDate("2012-08-01");

var today=new Date();

var timeold=today.getTime()-birthDay.getTime();

var sectimeold=timeold/1000

var secondsold=Math.floor(sectimeold);

var msPerDay=24*60*60*1000;

var e_daysold=timeold/msPerDay;

var daysold=Math.floor(e_daysold);

var e_hrsold=(daysold-e_daysold)*-24;

var hrsold=Math.floor(e_hrsold);

var e_minsold=(hrsold-e_hrsold)*-60;

var minsold=Math.floor((hrsold-e_hrsold)*-60);

var seconds=Math.floor((minsold-e_minsold)*-60).toString();

document.getElementById("showsectime").innerHTML = "网站已安全运行"+daysold+"天"+hrsold+"小时"+minsold+"分"+seconds+"秒";

setTimeout(showsectime, 1000);

}

showsectime();