create-react-app创建react项目骨架，配置路径别名与antd的按需加载

第一步

下载react-app-rewired和customize-cra

npm i react-app rewired customize-cra -D

第二步

下载 babel-plugin-import

npm i add babel-plugin-import -D

第三步

修改package.json里的配置

"scripts": {
  "start": "react-app-rewired start",
+   "build": "react-app-rewired build",
+   "test": "react-app-rewired test"
}

第三步

在根目录创建一个config.override.js文件，添加以下配置即可

const { override, fixBabelImports, addWebpackAlias } = require('customize-cra')
const path = require('path')
function resolve(dir) {
  return path.join(__dirname, '.', dir)
}
module.exports = override(
  // 配置路径别名
  addWebpackAlias({
    components: path.resolve(__dirname, 'src/components')
  }),
  // antd按需加载
  fixBabelImports('import', {
    libraryName: 'antd',
    libraryDirectory: 'es',
    style: 'css'
  })
)