src/main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import 'normalize.css/normalize.css'
import '@/assets/style/common.scss'
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';
import store from './store'
import './permission'
import moment from "moment";
Vue.config.productionTip = false
Vue.prototype.$m = moment
Vue.use(ElementUI);
// 批量引入组件
import components from './components'
Vue.use(components)
Vue.directive('loadMore', {
  bind(el, binding) {
    // 获取element-ui定义好的scroll盒子
    const SELECTWRAP_DOM = el.querySelector('.el-select-dropdown .el-select-dropdown__wrap')
    SELECTWRAP_DOM.addEventListener('scroll', function () {
      const CONDITION = this.scrollHeight - this.scrollTop <= this.clientHeight
      if (CONDITION) {
        binding.value()
      }
    })
  }
})
new Vue({
  router,
  store,
  render: h => h(App),
}).$mount('#app')