vue3按需使用Element Plus的icon

1、需求：需要用到Element Plus的icon，发现与element有点不同了

2、实操：按需引入需要安装@iconify-json/ep，unplugin-icons

npm i -D @iconify-json/ep unplugin-icons

在vite.config.ts配置

import path from 'path'
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import Components from 'unplugin-vue-components/vite'
import AutoImport from 'unplugin-auto-import/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
import Icons from 'unplugin-icons/vite'
import IconsResolver from 'unplugin-icons/resolver'
import Unocss from 'unocss/vite'
import {
  presetAttributify,
  presetIcons,
  presetUno,
  transformerDirectives,
  transformerVariantGroup,
} from 'unocss'
const pathSrc = path.resolve(__dirname, 'src')
// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    vue(),
    AutoImport({
      imports: ["vue", "vue-router"],
      resolvers: [
        IconsResolver(),
        ElementPlusResolver(),
      ],
      dts: "src/autoImport.d.ts"
    }),
    Components({
      // allow auto load markdown components under `./src/components/`
      extensions: ['vue', 'md'],
      // allow auto import and register components used in markdown
      include: [/\.vue$/, /\.vue\?vue/, /\.md$/],
      resolvers: [
        IconsResolver(),
        ElementPlusResolver({
          importStyle: 'sass',
        }),
      ],
      dts: 'src/components.d.ts',
    }),
    Unocss({
      presets: [
        presetUno(),
        presetAttributify(),
        presetIcons({
          scale: 1.2,
          warn: true,
        }),
      ],
      transformers: [
        transformerDirectives(),
        transformerVariantGroup(),
      ]
    }),
    Icons({
      autoInstall: true,
    }),
  ],
})

在.vue使用，标签格式 i+eq+（Element Plus里icon的类名）

<template>
     <el-icon><i-ep-aim />el-icon>
template>