element-plus中如何实现按需导入与全局导入

npm install unplugin-vue-components

// vite.config.ts
import Components from 'unplugin-vue-components/vite'
import { ElementPlusResolver } from 'unplugin-vue-components/resolvers'
​
export default {
  plugins: [
    // ...
    Components({
      resolvers: [ElementPlusResolver()],
    }),
  ],
}

// webpack.config.js
const Components = require('unplugin-vue-components/webpack')
const { ElementPlusResolver } = require('unplugin-vue-components/resolvers')
​
module.exports = {
  // ...
  plugins: [
    Components({
      resolvers: [ElementPlusResolver()],
    }),
  ],
}

//main.ts
import { createApp } from 'vue'
import App from './App.vue'
​
import { Edit,Search } from '@element-plus/icons'  //图标需要分开导入，按需导入图标
import { ElButton } from 'element-plus';   //按需导入
​
const app = createApp(App);
//注册组件
app.component("edit", Edit)
app.component("search", Search)
app.component('ElButton',ElButton)
app.mount('#app');

<template>
    <h2>home页面</h2>
    <el-button type="primary" >主要按钮</el-button>
    <el-button type="success" >成功按钮</el-button>
    <el-icon :size="20" :color="'blue'">
        <edit />
    </el-icon>
    <el-icon :size="20">
        <search></search>
    </el-icon>
</template>
<script setup lang="ts"> 
</script>

// tsconfig.json
{
  "compilerOptions": {
    // ...
    "types": ["element-plus/global"]
  }
}

npm install element-plus --save
# or
yarn add element-plus
​
# 安装icon图标依赖库
npm install @element-plus/icons
# or
yarn add @element-plus/icons

import { createApp } from 'vue'
import App from './App.vue'
import { store, key } from './store';
// 注入路由
import router from './router';
​
// 全局引入ui库
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
​
const app = createApp(App);
app.use(store, key);
app.use(router);
app.use(ElementPlus);
app.mount('#app');

//导入具体的组件后直接使用
<template>
    <el-icon :size="20" :color="'blue'">
        <edit />
    </el-icon>
</template>
<script setup lang="ts">
    import { Edit } from '@element-plus/icons'
</script>

<template>
    <h2>home页面</h2>
    <el-button type="primary" >主要按钮</el-button>
    <el-button type="success" >成功按钮</el-button>
    <el-icon :size="20" :color="'blue'">
        <edit />
    </el-icon>
    <el-icon :size="20">
        <search></search>
    </el-icon>
</template>
<script setup lang="ts"> 
</script>