Web1020/12_vuecli/mediaapp/src/main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import "@/assets/js/rem"
import "@/assets/css/iconfont.css"
import "@/assets/css/reset.css"
import Vant from 'vant';
import 'vant/lib/index.css';

Vue.use(Vant);
Vue.config.productionTip = false

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')