1.获取前一天的日期
const yesterday = moment().subtract(1, 'days').format('YYYY-MM-DD')
2.计算时间差并获取天数
const moment = require('moment')
const startDate = moment(startAt, 'YYYY-MM-DD HH:mm:ss')
const endDate = moment(endedAt, 'YYYY-MM-DD HH:mm:ss')
const data = (endDate) - (startDate)
const days = parseInt((data / (1000 * 60 * 60 * 24)) + 1, 0)
3.时间戳转化为时分秒
const days = parseInt(mss / (1000 * 60 * 60 * 24));
const hours = parseInt((mss % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
const minutes = parseInt((mss % (1000 * 60 * 60)) / (1000 * 60));
const seconds = (mss % (1000 * 60)) / 1000;
4.获取两个时间的间隔,返回间隔的天、小时du、分钟和秒
jutils.getTimeInterval("开始时间", "结束时间");
jutils.getTimeInterval(1353340800000,1353427200000)