一款扫描程序的源代码，主要包括tcp的syn扫描，fin扫描，连接扫描，还有udp的扫描-A scanning program' s source code, including the tcp syn scan fin scan, connect scan, as well as udp scan

端口扫描器 支持tcp全连接和syn扫描-Port scanner Full support for tcp connections and syn scan

本程序向网络服务器发送SYN连接包，获取网络服务器TCP、UDP端口信息，实现网络协议扫描。-The program sends packets to the network server SYN connection, access to network server TCP, UDP port information, network protocol scan.