1. Homebrew

/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

2. Node 和 npm

brew install node

3. watchman

brew instsll watchman

4. flow

brew install flow

5. npm 换源

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

6. 检查换源是否成功

npm config get registry

7. create-react-app

npm install -g create-react-app

8. react-native-cli

npm install -g react-native-cli

9. yarn

npm install -g yarn