react项目：

1 命令：

https://www.cnblogs.com/mmit/p/12639011.html

npm i cnpm -g --registry=https://registry.npm.taobao.org
cnpm install -g create-react-app
create-react-app stu-shop-manager
cd stu-shop-manager/
npm start

解决yarn 安装失败：

https://blog.csdn.net/weixin_43876206/article/details/105168644

2 插件下载：

npm i antd 
npm i react-router-dom

yarn add antd
yarn add react-router-dom

cnpm i antd

cnpm i react-router-dom

import {Button}  from  'antd'

import 'antd/dist/antd.css'

 出现的两个包的错误：

https://www.cnblogs.com/webdragon/p/9700879.html

https://blog.csdn.net/u010616713/article/details/106851043

yarn报错：

Windows下用 PowerShell(管理员) 安装即可。

npm install yarn -g

yarn 超时：

https://www.cnblogs.com/yanglang/p/11224049.html

yarn config set registry https://registry.npm.taobao.org