React 脚手架

npm install -g create-react-app

create-react-app my-app

npx create-react-app my-app

npm run start
或
yarn start

npm install
或
yarn

npm install -g yarn

{
    "react": "^16.13.1",
    "react-scripts": "3.4.3",
    "react-dom": "^16.13.1",
    "react-router-dom": "^5.2.0",
    "redux": "^4.0.5",
    "react-redux": "^7.2.1",
    "node-sass": "^4.14.1",
    "sass-loader": "^10.0.3"
}

npm install node-sass sass-loader
或
yarn add node-sass sass-loader

npm install react-router-dom
或
yarn add react-router-dom

npm install redux react-redux  redux-thunk
或
yarn add redux react-redux redux-thunk