当前时间与倒计时

当前时间与春节倒计时

<span></span>

function getTime() {
  var weekday = ["星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六"];
  var time = new Date();
  var year = time.getFullYear();
  var month = time.getMonth() + 1;
  var date = time.getDate();
  var week = weekday[time.getDay()];
  var hours = time.getHours();
  var minutes = time.getMinutes();
  if (minutes.toString().length < 2) { minutes = "0" + minutes };
  var seconds = time.getSeconds();
  if (seconds.toString().length < 2) { seconds = "0" + seconds };
  return (`${year}年${month}月${date}日 ${week} ${hours} : ${minutes} : ${seconds}`);
};
function FreshTime() {
  var nowtime = new Date();
  var endtime = new Date("2023/1/22,00:00:00");
  var lefttime = parseInt((endtime.getTime() - nowtime.getTime()) / 1000);
  var d = parseInt(lefttime / (24 * 60 * 60));
  var h = parseInt(lefttime / (60 * 60) % 24);
  var m = parseInt(lefttime / 60 % 60);
  if (m.toString().length < 2) { m = "0" + m };
  var s = parseInt(lefttime % 60);
  if (s.toString().length < 2) { s = "0" + s };
  if (lefttime <= 0) {
    return "  新春快乐！"
  } else {
    return (` 距春节还有：${d} 天 ${h} 小时 ${m} 分 ${s} 秒 `)
  }
};
setInterval(() => {
    document.querySelector("span").innerHTML = getTime() + FreshTime();
}, 1000);

Demo