使用代码获取连在同一个局域网内的其它设备的ip地址,类似于搜索到周边的电脑的ip地址
An iOS Local Area Network / wifi Scanner
https://github.com/mongizaidi/LAN-Scan
http://stackoverflow.com/questions/17953119/how-scan-devices-in-a-lan-network
https://github.com/mongizaidi/LAN-Scan
https://developer.appcelerator.com/question/142993/how-can-i-make-an-ip-scanner