安装插件用npm install或是yarn add都行，这里我用yarn add

• 引入 react-app-rewired
  yarn add react-app-rewired

• 安装customize-cra
  yarn add customize-cra

• 更改package.json⽂件

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

• 在根目录下新建config-overrides.js文件
• 执⾏安装 babel-plugin-import插件
  yarn add babel-plugin-import
• 安装⽀持装饰器语法的babel编译插件
  npm install --save-dev @babel/plugin-proposal-decorators

编写config-overrides.js文件

const { override, addBabelPlugins } = require('customize-cra')
module.exports = override(//配置支持高阶组件装饰器写法addBabelPlugins(// 支持装饰器['@babel/plugin-proposal-decorators',{legacy: true}])
)