Creates a yui application using the command line.
npm install create-yui``bash`
$ npm create yui [appName]
* ly-ui-scaffold - Create a pc scaffold.ly-mobile-scaffold
* - Create a mobile scaffold.
`bash
$ npm create yui
? Select the boilerplate type (Use arrow keys)
ly-ui-scaffold - Create a pc scaffold
❯ ly-mobile-scaffold - Create a mobile scaffold.
✨ File Generate Done
`
安装 create-yui，并执行他，
`bash``
$ npm install create-yui -g
$ create-yui