Question

Js倒计时代码精确到毫秒。

/***倒计时***/
//var overDate = 1000 * 60 * 60 * 24 * 3; //截止时间:为当前计算机时间+3天
var NowTime = new Date();
var EndTime= new Date(2013,10,12,0,0); //截止时间：为固定时间
//var EndTime = new Date(NowTime.getTime() + overDate);
var EndTimeMsg = EndTime.getFullYear() + "年";
EndTimeMsg = EndTimeMsg + (EndTime.getMonth() + 1) + "月";
EndTimeMsg = EndTimeMsg + (EndTime.getDate()) + "日";
EndTimeMsg = EndTimeMsg + (EndTime.getHours()) + "时";
EndTimeMsg = EndTimeMsg + (EndTime.getMinutes()) + "分";
EndTimeMsg = EndTimeMsg + (EndTime.getSeconds()) + "秒";

function GetRTime()
{
NowTime = new Date();
var nMS = EndTime.getTime() - NowTime.getTime();
var nD = Math.floor(nMS / (1000 * 60 * 60 * 24));
var nH = Math.floor(nMS / (1000 * 60 * 60)) % 24;
var nM = Math.floor(nMS / (1000 * 60)) % 60;
var nS = Math.floor(nMS / 1000) % 60;
var nSS = Math.floor(nMS /100) % 10;
if (nD >= 0)
{
if(nD<10){ nD = "0" + nD; }
if(nH<10){ nH = "0" + nH; }
if(nM<10){ nM = "0" + nM; }
if(nS<10){ nS = "0" + nS; }
if(nSS<10){nSS="0"+ nSS; }
document.getElementById("RemainH").innerHTML = nH;
document.getElementById("RemainM").innerHTML = nM;
document.getElementById("RemainS").innerHTML = nS ;
document.getElementById("RemainSS").innerHTML = nSS ;
}
else {
document.getElementById("CountMsg").innerHTML = EndTimeMsg + "已过期！";
}
setTimeout("GetRTime()", 100);
}
window.onload = function() {
GetRTime();
}
</script>
如何让毫秒更快一些，例如1秒钟转50毫秒。

Answer 1

setTimeout("GetRTime()", 100); 改为setTimeout("GetRTime()", 20); 就是≈50毫秒了，1s = 1000ms，1000 ÷ 50 = 20，然后由于javascript的单线程方式，setTimeout并不一定会在20ms时执行，所以只能说≈了

Answer 2

 setTimeout("GetRTime()", 100);  
 只能更改这个 参数了！