React Native实践

1.安装npm

2.安装react native组件

3.启动RN, react-native start或npm start

此时可以访问本地页面http://127.0.0.1:8081

实践中遇到的问题

1.当在工程目录下输入npm start时，会提示

Looks like you installed react-native globally, maybe you meant react-native-cli?

To fix the issue, run:

npm uninstall -g react-native

npm install -g react-native-cli

意思是全局安装了RN，此时输入react-native start即可启动RN了