calcTime(str,seeTime) {
let date1 = new Date(str); //开始时间
let date2 = new Date(); //结束时间
let date3 = date2.getTime() - date1.getTime() //时间差的毫秒数
let isFirst = (seeTime - date2.getTime() > 0) ? true:false;
let isOvertime = false;
//计算出相差天数
let days = Math.floor(date3 / (24 * 3600 * 1000))
//计算出小时数
let leave1 = date3 % (24 * 3600 * 1000) //计算天数后剩余的毫秒数
let hours = Math.floor(leave1 / (3600 * 1000))
//计算相差分钟数
let leave2 = leave1 % (3600 * 1000) //计算小时数后剩余的毫秒数
let minutes = Math.floor(leave2 / (60 * 1000))
//计算相差秒数
let leave3 = leave2 % (60 * 1000) //计算分钟数后剩余的毫秒数
let seconds = Math.round(leave3 / 1000);
if (hours <= 0) {
hours = 0;
} else {
isOvertime = true;
}
if (minutes <= 0) {
minutes = '00';
} else if (minutes > 3) {
isOvertime = true;
}
if (minutes.toString().length == 1) {
minutes = '0' + minutes;
}
if (seconds < 0) {
seconds = '00';
}
if (seconds.toString().length == 1) {
seconds = '0' + seconds;
}
return [hours + ":" + minutes + ":" + seconds, isOvertime,isFirst];
},
2.处理时间戳转化为各种想要的格式日期
function time(time, type) {
var datetime = new Date();
datetime.setTime(time);
var year = datetime.getFullYear();
var month = datetime.getMonth() + 1 < 10 ? "0" + (datetime.getMonth() + 1) : datetime.getMonth() + 1;
var date = datetime.getDate() < 10 ? "0" + datetime.getDate() : datetime.getDate();
var hour = datetime.getHours() < 10 ? "0" + datetime.getHours() : datetime.getHours();
var minute = datetime.getMinutes() < 10 ? "0" + datetime.getMinutes() : datetime.getMinutes();
var second = datetime.getSeconds() < 10 ? "0" + datetime.getSeconds() : datetime.getSeconds();
if (type == '1') {
return year + "." + month + "-" + date + "日";
}
if (type == '2') {
return year + "-" + month + "-" + date;
}
if (type == '3') {
return month + "-" + date;
}
if(type == '4'){
return month;
}
if(type == '5'){
return date;
}
if(type == '6'){
return year + "." + month + "." + date + " " + hour + ":" + minute + ":" + second;
}
if(type == '7'){
return year + "-" + month + "-" + date + " " + hour + ":" + minute + ":" + second;
}
if(type == '8'){
return year + "-" + month + "-" + date + " " + hour + ":" + minute;
}
if(type == '9'){
return month + "-" + date + " " + hour + ":" + minute;
}
if(type == '10'){
return hour + ":" + minute
}
}
3.获取当前时间日期
function getNowTime() {
var now = new Date();
var year = now.getFullYear();
var month = now.getMonth() + 1;
var day = now.getDate();
if (month < 10) {
month = '0' + month;
};
if (day < 10) {
day = '0' + day;
};
// 如果需要时分秒,就放开
// var h = now.getHours();
// var m = now.getMinutes();
// var s = now.getSeconds();
var formatDate = year + '-' + month + '-' + day;
return formatDate;
}
4.获取前一天的日期
function getDay(num, str) {
var today = new Date();
var nowTime = today.getTime();
var ms = 24*3600*1000*num;
today.setTime(parseInt(nowTime + ms));
var oYear = today.getFullYear();
var oMoth = (today.getMonth() + 1).toString();
if (oMoth.length <= 1) oMoth = '0' + oMoth;
var oDay = today.getDate().toString();
if (oDay.length <= 1) oDay = '0' + oDay;
return oYear + str + oMoth + str + oDay;
}