插件：插件 (Plugins) 是一种能为 Vue 添加全局功能的工具代码（也可以注册组件）
https://cn.vuejs.org/guide/reusability/plugins.html

全局注册组件：https://cn.vuejs.org/guide/components/registration.html

import { App } from 'vue'
import table from './src/index.vue' //引入组件// 让这个组件可以通过use的形式使用
export default {install(app: App) {app.component('m-table', table) //插件为注册组件}
}

import { App } from 'vue'
// 每一个引入的都是一个插件
import chooseArea from './chooseArea' 
import chooseIcon from './chooseIcon'
import trend from './trend'
import notification from './notification'
import list from './list'
import menu from './menu'
import chooseTime from './chooseTime'
import chooseDate from './chooseDate'
import progress from './progress'
import chooseCity from './chooseCity'
import form from './form'
import modalForm from './modalForm'
import table from './table'
import calendar from './calendar'const components = [chooseArea,chooseIcon,trend,notification,list,menu,chooseTime,chooseDate,chooseCity,progress,form,modalForm,table,calendar
]export default {install(app: App) {// 循环中使用插件components.map(item => {app.use(item)})}
}

最后可以在main.js

import mUI from './components'app.use(use(mUI))