rn学习1：

/usr/local/bin/react-native -> /usr/local/lib/node_modules/react-native-cli/index.js
/usr/local/lib
└─┬ [email protected]
├─┬ [email protected]
│ └─┬ [email protected]
│ └── [email protected]
└─┬ [email protected]
├─┬ [email protected]
│ └── [email protected]
├─┬ [email protected]
│ └─┬ [email protected]
│ └─┬ [email protected]
│ ├── [email protected]
│ ├─┬ [email protected]
│ │ └─┬ [email protected]
│ │ └── [email protected]
│ └── [email protected]
└─┬ [email protected]
└── [email protected]

? ~
? ~
? ~ react-native init HelloWorld
This will walk you through creating a new React Native project in /Users/wsk/HelloWorld
Installing react-native...
Consider installing yarn to make this faster: https://yarnpkg.com
[email protected] /Users/wsk/HelloWorld