react map

 ts+react 创建项目：create-react-app testApp --typescript --use-npm

启动 npm start

create react app

https://create-react-app.dev/

https://reactjs.org/docs/create-a-new-react-app.html

https://github.com/facebook/create-react-app

create-react-app app --typescript --use-npm

https://create-react-app.dev/docs/getting-started#selecting-a-template

npx create-react-app app --template typescript

https://reactjs.org/docs/react-dom.html

https://reactjs.org/docs/rendering-elements.html

https://reactjs.org/docs/dom-elements.html

React 设计模式