linux 环境下，socket通信线程-linux environment, socket communication thread

实现对指定IP地址的端口扫描，并为每个IP扫描开辟100个线程。已经过GDB调试，可支持1-5个IP的端口扫描-Specify the IP address of the port scanning, and open up to 100 threads for each IP scanning. Has been the GDB debugger can support the 1-5 IP port scan