安装

npm i moment --save

使用

import { Pipe, PipeTransform } from '@angular/core';import Moment from 'moment';@Pipe({  name: 'moment',})export class MomentPipe implements PipeTransform {  transform(value: Date | Moment.Moment | string, ...args) {    Moment.lang('zh-cn');    let fromNow = Moment(value).fromNow();    return fromNow;  }}