安装

 yarn add mobx mobx-react -S

yarn add -D react-app-rewired customize-cra @babel/plugin-proposal-decorators

配置

在根目录下新建config-overrides.js

const { override, addDecoratorsLegacy } = require("customize-cra")
module.exports = override(
  addDecoratorsLegacy()
)

在package.json

  "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom" ,
    "eject": "react-scripts eject"
  },