create react app --react webpac

npm install -g create-react-app 全局安装create-react-app

create-react-app 名称 创建react脚手架

create-react-app --version 查看版本

create-react-app --help 查看帮助

npm run start 运行react环境

npm list -g 查看全局装的包

npm install yarn -g 安装yarg

yarn

开始新项目 yarn init
添加依赖包
yarn add [package]
yarn add [package]@[version]
yarn add [package]@[tag]
升级依赖包
yarn upgrade [package]
yarn upgrade [package]@[version]
yarn upgrade [package]@[tag]
移除依赖包
yarn remove [package]
安装项目的全部依赖
yarn或者yarn install