传入参数是标准格式的日期 如：2019-07-21 18:00:00
    function getRemainderTime (startdate,enddate){
    //console.log(“startdate is “+ startdate+”;enddate is “+ enddate);
    var s1 = new Date(startdate);
    var s2 = new Date(enddate);
    runTime = parseInt((s2.getTime() - s1.getTime()) / 1000);
    var year = Math.floor(runTime / 86400 / 365);
    runTime = runTime % (86400 365);
    var month = Math.floor(runTime / 86400 / 30);
    runTime = runTime % (86400     30);
    var day = Math.floor(runTime / 86400);
    runTime = runTime % 86400;
    var hour = Math.floor(runTime / 3600);
    runTime = runTime % 3600;
    var minute = Math.floor(runTime / 60);
    runTime = runTime % 60;
    var second = runTime;
    console.log(year,month,day,hour,minute,second);
    return year+’,’+month+’,’+day+’,’+hour+’,’+minute+’,’+second;
    }