参考链接 扩展放在同级compilerOptions配置上，不然会报错 " extends " : " ./paths.json " yarn add babel/plugin-proposal-decorators create-react-app预设dev / pro环境开启了sourcemap 开启chrome-inspect-Setting-Sources-Enable Javascr ipt源映射 yarn Build后利用根目录.env，控制Pro环境sourceMap GENE