elementPlus引入

npm i elementPlus
npm install -D unplugin-vue-components unplugin-auto-import

// 引入插件
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
export default defineConfig({
  plugins: [
    // 配置插件
    AutoImport({
      resolvers: [ElementPlusResolver()],
    }),
    Components({
      resolvers: [ElementPlusResolver()],
    }),
  ]
})

<template>
  <el-button type="primary">i am button</el-button>
</template>