1、官网下载安装包

# NPM
$ npm install @element-plus/icons-vue
# Yarn
$ yarn add @element-plus/icons-vue
# pnpm
$ pnpm install @element-plus/icons-vue

2、项目中使用

<el-form-item>
     <el-input :prefix-icon="Avatar" v-model="form.username" placeholder="用户名"></el-input>
</el-form-item>
<script>
export default {
  name: "Login",
  components:{
  //注册图标组件名称
    Avatar,
    Lock
  },
</script>
<script setup>
import { Avatar,Lock } from '@element-plus/icons-vue'
</script>