• 首先你需要安装unplugin-vue-components 和 unplugin-auto-import这两款插件

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

• 在vue脚手架所创建项目根目录创建vue.config.js，复制以下代码到vue.config.js。

const AutoImport = require('unplugin-auto-import/webpack')
const Components = require('unplugin-vue-components/webpack')
const { ElementPlusResolver } = require('unplugin-vue-components/resolvers')

module.exports = {
    configureWebpack: {
        plugins: [
          AutoImport({
            resolvers: [ElementPlusResolver()],
          }),
          Components({
            resolvers: [ElementPlusResolver()],
          }),
        ],
    },
}