import 'element-ui/lib/theme-chalk/index.css'; Vue.use(ElementUI); (二):vue3.x使用entment-ui 1:安装elemtnt-plus: yarn add element-plus 2:引用element-plus import ElementPlus from 'element-plus'; import 'element-plus/dist/index.css'; const app=createApp(App); app.use(ElementPlus) 注...