JS将毫秒转化成天时分秒的时间格式教程代码
JS将毫秒转化成天时分秒的时间格式代码<!DOCTYPE html>
<head></head>
<body>
</body>
</html>
<script>
/**
* @param {string} mss 毫秒值
* @return {string}
*/
function formatDuring(mss) {
let millisecond = 1000;
let second = 60;
let minute = millisecond * second;
let hour = millisecond * second * second;
let day = millisecond * second * second * 24;
let days = parseInt(mss / day);
var hours = parseInt((mss % day) / hour);
var minutes = parseInt((mss % hour) / minute);
var seconds = parseInt(((mss % minute) / millisecond));
let dateStr = "";
if (days) {
dateStr = days + '天';
}
if (hours) {
dateStr += hours + '小时';
}
if (minutes) {
dateStr += minutes + '分钟';
}
if (seconds) {
dateStr += seconds + '秒';
}
return dateStr;
}
/**
* @param {string} mss 毫秒值
* @return {string}
*/
function formatDuring1(mss) {
let date =new Date(mss);
let days = date.getDate();
let hours = date.getHours();
let minutes = date.getMinutes();
let seconds = date.getSeconds();
let dateStr = "";
if (days) {
dateStr = days + '天';
}
if (hours) {
dateStr += hours + '小时';
}
if (minutes) {
dateStr += minutes + '分钟';
}
if (seconds) {
dateStr += seconds + '秒';
}
return dateStr;
}
/**
*
* @param {Date} endtime 结束时间
* @return {string}
*/
function showtime(endtime) {
let nowtime = new Date();//获取当前时间
var mss = endtime.getTime() - nowtime.getTime();//距离结束时间的毫秒数
return formatDuring(mss);//返回倒计时的字符串
}
let newDate = new Date("2021-07-31 00:00:00");
var newDiv = document.createElement("div");
document.body.appendChild(newDiv);
// 定时器，每1秒执行一次
setInterval(function() {
newDiv.innerHTML = showtime(newDate);
}, 1000);
// 测试
var newDiv1 = document.createElement("div");
document.body.appendChild(newDiv1);
// 定时器，每1秒执行一次
setInterval(function() {
let nowtime = new Date();//获取当前时间
var mss = newDate.getTime() - nowtime.getTime();//距离结束时间的毫秒数
newDiv1.innerHTML = formatDuring1(mss);
}, 1000);
</script>js执行运行效果图如下：
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