ios平台网络诊断SDK，支持对ip和域名的ping,traceroute(udp,icmp协议)，支持tcp ping, 端口扫描，nslookup,局域网活跃ip扫描等功能-----------Ios platform network diagnostic SDK, support ip and domain name ping, traceroute (udp, icmp protocol), support tcp ping, port scan, nslookup, LAN active ip scan and other functions