背景
===待补充===
安装
npm i concurrently --save-dev
更改package.json中的scripts
"scripts": {
"start": "react-scripts start",
"build": "react-scripts build",
"test": "react-scripts test --env=jsdom",
"eject": "react-scripts eject",
"server": "npm start --prefix backend",
"dev": "concurrently \"npm run server\" \"npm run start\""
},
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