JS实现距离上次刷新已过多少秒示例_javascript技巧

var oldhh;
var oldmin;
var oldss;

$(document).ready(function() {
fillDate();
});
function fillDate(){
var date = new Date();
var yy = date.getFullYear();
var mm = date.getMonth()+1; //截取月，
var dd = date.getDate(); //截取日，
var cal = yy+"."+ mm +"."+dd;
var hh = date.getHours(); //截取小时，
var min = date.getMinutes(); //截取分钟，

var ss = date.getTime() % 60000;
ss = (ss - (ss % 1000)) / 1000; //然后，将得到的毫秒数再处理成秒
//(hh+":"+min+":"+ss);
oldhh = hh;
oldmin = min;
oldss = ss;
//alert(oldmin+":"+oldss);
}
window.setInterval(test,1000);
function test(){
var date = new Date();
var hh = date.getHours(); //截取小时，即8
var min = date.getMinutes(); //截取分钟，即34
var ss = date.getTime() % 60000;
ss = (ss - (ss % 1000)) / 1000; //然后，将得到的毫秒数再处理成秒
var betweenhh;
var betweenmin;
var betweenss;

if(ssbetweenss = ss+60-oldss;
betweenhh = hh-oldhh;
betweenmin = (min+betweenhh*60)-1 - oldmin;

//alert("距离上次刷新"+betweenmin+"分"+betweenss+"秒");
}else{
betweenss = ss-oldss;
betweenhh = hh-oldhh;
betweenmin = (min + betweenhh*60) - oldmin;
//$("#message").html("距离上次刷新"+betweenmin+"分"+betweenss+"秒");
//alert("距离上次刷新"+betweenmin+"分"+betweenss+"秒");
}
if(betweenmin<10){
if(betweenss<10){
$("#message").html("距离上次刷新0"+betweenmin+"分0"+betweenss+"秒");
}else{
$("#message").html("距离上次刷新0"+betweenmin+"分"+betweenss+"秒");
}

}else{
if(betweenss<10){
$("#message").html("距离上次刷新"+betweenmin+"分0"+betweenss+"秒");
}else{
$("#message").html("距离上次刷新"+betweenmin+"分"+betweenss+"秒");
}
}
}
});
function ByStateflag()
{
alert("hah");
var value = document.getElementById("stateflag").value;
alert(value);
}

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