版本：4.0.0-beta.2
- https://cdn.bootcdn.net/ajax/libs/timeago.js/4.0.0-beta.2/timeago.locales.min.js
- https://cdn.bootcdn.net/ajax/libs/timeago.js/4.0.0-beta.2/timeago.min.js
timeago.js is a simple library (only 2kb) to used to format datetime with `*** time ago` statement. eg: '3 hours ago'. localization supported.