【前端学习】初识React

安装react

npm install -g create-react-app
```![在这里插入图片描述](https://img-blog.csdnimg.cn/20200504153519795.PNG?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NDc5NjQ5Mw==,size_16,color_FFFFFF,t_70#pic_center)


查看命令

```javascript
create-react-app

创建一个react程序

create-react-app my-react-app

运行程序

cd my-react-app
yarn start