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  • 最少clock

    var elClock = document.getElementById("clock");
    var getTime = function(){
    var _ = ['00','01','02','03','04','05','06','07','08','09'], d = new Date(), h = d.getHours(), m = d.getMinutes(), s = d.getSeconds();
    return [_[h]||h,_[m]||m,_[s]||s].join(":");
    };
    setInterval(function(){
    elClock.textContent = getTime();
    },1000);

    <div id="clock">00:00:00</div>

    ==

    function getintveral()
    {
    var d1=new Date();
    var d2=new Date(2017,01,24,23,59,59);
    var t1=d1.getTime();
    var t2=d2.getTime();
    var t3=parseInt(parseInt(t2-t1)/1000);
    var d=parseInt(t3/86400);
    var h=parseInt((t3-(d*86400))/3600);
    var m=parseInt((t3-(d*86400)-(h*3600))/60);
    var s=parseInt(t3-(d*86400)-(h*3600)-(m*60));
    timer.innerHTML=d+"天"+h+"小时"+m+"分"+s+"秒";
    }
    timer.style.cssText="background:red"
    setInterval(getintveral,1000);

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  • 原文地址:https://www.cnblogs.com/jayruan/p/6178165.html
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