JavaScript 网页中实现一个计算当年还剩多少时间的倒数计时程序

看到网上这个程序 发现了处错误这里改正了一下：

function counter() { 
  var date = new date(); 
  var year = date.getfullyear(); 
  var date2 = new date(year, 11, 30, 23, 59, 59); 
  /*转换成秒*/ 
  var time = (date2 - date) / 1000; 
  var day = math.floor(time / (24 * 60 * 60)) 
  var hour = math.floor(time % (24 * 60 * 60) / (60 * 60)) 
  var minute = math.floor(time % (24 * 60 * 60) % (60 * 60) / 60); 
  var second = math.floor(time % (24 * 60 * 60) % (60 * 60) % 60); 
  var str = year + "年还剩" + day + "天" + hour + "时" + minute + "分" + second + "秒"; 
  console.log(str); 
} 
window.setinterval("counter()", 1000); 

这是我自己写的

var odatenow = new date();
var oyear = odatenow.getfullyear();
var odateend = new date();
odateend.setfullyear(oyear+1);
odateend.setmonth(0);
odateend.setdate(0);
odateend.sethours(0);
odateend.setminutes(0);
odateend.setseconds(0);
function update(){
var odatenow = new date();
var itime = odateend.gettime()-odatenow.gettime();
var iremain = itime/1000;
var iday=parseint(iremain/86400);
iremain%=86400;
var ihour=parseint(iremain/3600);
iremain%=3600;
var imin=parseint(iremain/60);
iremain%=60;
var isec=parseint(iremain);
document.write(oyear+"年还剩"+iday+"天"+ihour+"时"+imin+"分"+isec+"秒");
}
setinterval(function(){ update() },1000);

这两个方法的秒数有出处

以上所述是小编给大家介绍的javascript 网页中实现一个计算当年还剩多少时间的倒数计时程序，希望对大家有所帮助