React 中使用sass

npm install node-sass-chokidar --save-dev

package.json添加两行：

   "scripts": {
2      "build-css": "node-sass-chokidar src/ -o src/",
3      "watch-css": "npm run build-css && node-sass-chokidar src/ -o src/ --watch --recursive",
     "start": "react-scripts start",
     "build": "react-scripts build",
     "test": "react-scripts test --env=jsdom",

运行 npm run watch-css 会将src目录下的scss转换成css

https://yasinchan.com/%E5%A6%82%E4%BD%95%E5%9C%A8create-react-app%E4%B8%AD%E4%BD%BF%E7%94%A8sass.html