vite按需加载element-plus，减少项目体积，你必须学会

$ npm install element-plus --save
$ yarn add element-plus
$ pnpm install element-plus

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

<!-- vite.config.ts 代码结束 -->
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
// 下面这三行是引入组件
import AutoImport from 'unplugin-auto-import/vite'
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
// 上面这上行是新增的哈
// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    vue(),
    // 自动引入组件和自动注册 new add
    AutoImport({
      resolvers: [ElementPlusResolver()],
    }),
    Components({
      resolvers: [ElementPlusResolver()],
    }),
    // 按需引入结束
  ]
})

<template>
  <el-row class="mb-4">
    <el-button plain>Plain</el-button>
    <el-button type="primary" plain>Primary</el-button>
    <el-button type="success" plain>Success</el-button>
    <el-button type="info" plain>Info</el-button>
    <el-button type="warning" plain>Warning</el-button>
    <el-button type="danger" plain>Danger</el-button>
  </el-row>
  <el-row>
    <el-button :icon="Search" circle />
    <el-button type="primary" :icon="Edit" circle />
    <el-button type="success" :icon="Check" circle />
    <el-button type="info" :icon="Message" circle />
    <el-button type="warning" :icon="Star" circle />
    <el-button type="danger" :icon="Delete" circle />
  </el-row>
</template>
<script lang="ts" setup>
// 字体图标需要你引入的哈
import {
  Check,
  Delete,
  Edit,
  Message,
  Search,
  Star,
} from '@element-plus/icons-vue'
</script>

components.d.ts
auto-imports.d.ts : 你在element-plus中使用的组件，在这个文件中会自动引入的。