import Vue from 'vue' import App from './App.vue' import router from './router' import ElementUI from 'element-ui'; import 'element-ui/lib/theme-chalk/index.css'; //引入初始化样式 import './assets/css/base.css' Vue.use(ElementUI); // 封装一个mixin,用来为所有dom添加一个 accessible 的类 const addClass = { mounted() { let nodes = document.all; for (let i = 0; i < nodes.length; i++) { let o = nodes[i]; o.classList.add('accessible') } } } Vue.mixin(addClass) Vue.config.productionTip = false new Vue({ router, render: h => h(App) }).$mount('#app')