dy-admin-manager/src/main.js

import Vue from 'vue'
import ElementUI from 'element-ui'
import 'normalize.css/normalize.css' // A modern alternative to CSS resets
import 'default-passive-events'
import 'babel-polyfill'

import 'element-ui/lib/theme-chalk/index.css'
import locale from 'element-ui/lib/locale/lang/zh-CN' // lang i18n

import '@/styles/index.scss' // global css

import App from './App'
import store from './store'
import router from './router'
import './utils/vueFilter'
import './utils/directive'
// Vue.use(vueFilter)
import '@/icons' // icon
import '@/permission' // permission control
import { Message } from 'element-ui'
const showMessage = Symbol('showMessage')
class DonMessage {
  success (options, single = true) {
    this[showMessage]('success', options, single)
  }
  warning (options, single = true) {
    this[showMessage]('warning', options, single)
  }
  info (options, single = true) {
    this[showMessage]('info', options, single)
  }
  error (options, single = true) {
    this[showMessage]('error', options, single)
  }
  [showMessage] (type, options, single) {
    if (single) {
      // 判断是否已存在Message
      if (document.getElementsByClassName('el-message').length === 0) {
        Message[type](options)
      }
    } else {
      Message[type](options)
    }
  }
}

// ... 

Vue.use(ElementUI)
// 命名根据需要，DonMessage只是在文章中使用
Vue.prototype.$message = new DonMessage()



/**
 * If you don't want to use mock-server
 * you want to use MockJs for mock api
 * you can execute: mockXHR()
 *
 * Currently MockJs will be used in the production environment,
 * please remove it before going online! ! !
 */
// import { mockXHR } from '../mock'
// if (process.env.NODE_ENV === 'production') {
//   mockXHR()
// }

// 高德地址
import VueAMap from 'vue-amap'
Vue.use(VueAMap)


// set ElementUI lang to EN
Vue.use(ElementUI, { locale })

Vue.config.productionTip = false

new Vue({
  el: '#app',
  router,
  store,
  render: h => h(App)
})