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已过时间

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <title></title>
    </head>
    <body>
        <h3 id="LeftTime"></h3>
        <h3 id="test"></h3>
    </body>
    <body>
<script>
function FreshTime()
{
    var borntime=new Date("1997/1/19");
    var nowtime = new Date();
    var lefttime= parseInt((nowtime.getTime()-borntime.getTime())/1000); 
    month=parseInt(lefttime/3600/24/30.4375);
    d=parseInt(lefttime/3600/24); 
    h= parseInt(lefttime/(60*60))%24 ;
    m= parseInt(lefttime/(60))%60 ;
    s= parseInt(lefttime%60);
    
    year=nowtime.getFullYear();
    if(year%400==0){
    y=(lefttime/3600/24/366).toFixed(9);
    }
    else if((year%4==0)&&(year%100!==0)){
    y=(lefttime/3600/24/366).toFixed(9);
    }
    else{
    y=(lefttime/3600/24/365).toFixed(9);
    }
   
    document.getElementById("LeftTime").innerHTML=lefttime+ "      "+"已活"+d+"天"+h+"小时"+m+"分"+s+"秒"+month+"月"+y+"年";
    document.getElementById("test").innerHTML=year;
}
FreshTime()
var sh;
sh=setInterval(FreshTime,1000);
</script>


    </body>
</html>

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原文地址：https://www.cnblogs.com/fangjb/p/12073921.html