text: import Vue from 'vue'
  import { Message, Button, Table, TableColumn, Tag, Input, Dialog, Form, FormItem, Switch, Select, Option, Checkbox, Autocomplete, Col, Tree } from 'element-ui'
  import Plugin from 'v-fit-columns'
  Vue.use(Button)
  Vue.use(Col)
  Vue.use(Table)
  Vue.use(TableColumn)
  Vue.use(Tag)
  Vue.use(Input)
  Vue.use(Dialog)
  Vue.use(Form)
  Vue.use(FormItem)
  Vue.use(Switch)
  Vue.use(Plugin)
  Vue.use(Select)
  Vue.use(Option)
  Vue.use(Checkbox)
  Vue.use(Autocomplete)
  Vue.use(Tree)
  Vue.prototype.$message = Message
  