Vue2 introduces element ui and vant

Install vant ( https://vant-contrib.gitee.io/vant/v2/#/zh-CN/quickstart )

npm i vant@latest-v2 -S

Install element ui ( https://element.eleme.io/#/zh-CN/component/quickstart )

npm i element-ui -S

Install the vant plugin (this plugin is to automatically import components on demand)

npm i babel-plugin-import -D

add configuration

// 在.babelrc 中添加配置
// 注意：webpack 1 无需设置 libraryDirectory
{
    
    
  "plugins": [
    ["import", {
    
    
      "libraryName": "vant",
      "libraryDirectory": "es",
      "style": true
    }]
  ]
}

// 对于使用 babel7 的用户，可以在 babel.config.js 中配置
module.exports = {
    
    
  plugins: [
    ['import', {
    
    
      libraryName: 'vant',
      libraryDirectory: 'es',
      style: true
    }, 'vant']
  ]
};

Install the element ui plug-in (imported on demand)

npm install babel-plugin-component -D

add configuration

//将 .babelrc 修改为：

{
    
    
  "presets": [["es2015", {
    
     "modules": false }]],
  "plugins": [
    [
      "component",
      {
    
    
        "libraryName": "element-ui",
        "styleLibraryName": "theme-chalk"
      }
    ]
  ]
}

Create a new .js file separately and introduce it in main.js

Introduce the required components in vant.js (just go to the official document and paste and copy it)

import Vue from 'vue'
import {
    
     Form, Field, Button } from 'vant'
//vant的样式文件
import 'vant/lib/index.css'

Vue.use(Button)
Vue.use(Form)
Vue.use(Field)
...

Introduce the required components in elementui.js (choose the one you need)

import Vue from 'vue';
import {
    
    
  Pagination,
  Dialog,
  Autocomplete,
  Dropdown,
  DropdownMenu,
  DropdownItem,
  Menu,
  Submenu,
  MenuItem,
  MenuItemGroup,
  Input,
  InputNumber,
  Radio,
  RadioGroup,
  RadioButton,
  Checkbox,
  CheckboxButton,
  CheckboxGroup,
  Switch,
  Select,
  Option,
  OptionGroup,
  Button,
  ButtonGroup,
  Table,
  TableColumn,
  DatePicker,
  TimeSelect,
  TimePicker,
  Popover,
  Tooltip,
  Breadcrumb,
  BreadcrumbItem,
  Form,
  FormItem,
  Tabs,
  TabPane,
  Tag,
  Tree,
  Alert,
  Slider,
  Icon,
  Row,
  Col,
  Upload,
  Progress,
  Spinner,
  Badge,
  Card,
  Rate,
  Steps,
  Step,
  Carousel,
  CarouselItem,
  Collapse,
  CollapseItem,
  Cascader,
  ColorPicker,
  Transfer,
  Container,
  Header,
  Aside,
  Main,
  Footer,
  Timeline,
  TimelineItem,
  Link,
  Divider,
  Image,
  Calendar,
  Backtop,
  PageHeader,
  CascaderPanel,
  Loading,
  MessageBox,
  Message,
  Notification
} from 'element-ui';

Vue.use(Pagination);
Vue.use(Dialog);
Vue.use(Autocomplete);
Vue.use(Dropdown);
Vue.use(DropdownMenu);
Vue.use(DropdownItem);
Vue.use(Menu);
Vue.use(Submenu);
Vue.use(MenuItem);
Vue.use(MenuItemGroup);
Vue.use(Input);
Vue.use(InputNumber);
Vue.use(Radio);
Vue.use(RadioGroup);
Vue.use(RadioButton);
Vue.use(Checkbox);
Vue.use(CheckboxButton);
Vue.use(CheckboxGroup);
Vue.use(Switch);
Vue.use(Select);
Vue.use(Option);
Vue.use(OptionGroup);
Vue.use(Button);
Vue.use(ButtonGroup);
Vue.use(Table);
Vue.use(TableColumn);
Vue.use(DatePicker);
Vue.use(TimeSelect);
Vue.use(TimePicker);
Vue.use(Popover);
Vue.use(Tooltip);
Vue.use(Breadcrumb);
Vue.use(BreadcrumbItem);
Vue.use(Form);
Vue.use(FormItem);
Vue.use(Tabs);
Vue.use(TabPane);
Vue.use(Tag);
Vue.use(Tree);
Vue.use(Alert);
Vue.use(Slider);
Vue.use(Icon);
Vue.use(Row);
Vue.use(Col);
Vue.use(Upload);
Vue.use(Progress);
Vue.use(Spinner);
Vue.use(Badge);
Vue.use(Card);
Vue.use(Rate);
Vue.use(Steps);
Vue.use(Step);
Vue.use(Carousel);
Vue.use(CarouselItem);
Vue.use(Collapse);
Vue.use(CollapseItem);
Vue.use(Cascader);
Vue.use(ColorPicker);
Vue.use(Transfer);
Vue.use(Container);
Vue.use(Header);
Vue.use(Aside);
Vue.use(Main);
Vue.use(Footer);
Vue.use(Timeline);
Vue.use(TimelineItem);
Vue.use(Link);
Vue.use(Divider);
Vue.use(Image);
Vue.use(Calendar);
Vue.use(Backtop);
Vue.use(PageHeader);
Vue.use(CascaderPanel);
Vue.use(Loading.directive);
Vue.prototype.$loading = Loading.service;
Vue.prototype.$msgbox = MessageBox;
Vue.prototype.$alert = MessageBox.alert;
Vue.prototype.$confirm = MessageBox.confirm;
Vue.prototype.$prompt = MessageBox.prompt;
Vue.prototype.$notify = Notification;
Vue.prototype.$message = Message;