vue3引入ElementUIPlus

npm install element-plus --save

import { createApp } from 'vue'
import App from './App.vue'
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'

const app = createApp(App)
app.use(ElementPlus)
app.mount('#app')


// 在已有项目中使用以下三行
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'

app.use(ElementPlus)

<template>
  <div>
    <el-button type="primary">Primary</el-button>
  </div>
</template>