tcp/ip模式面向连接的程序，改编自书上例题，加入了服务器可以广播可以查找局域网计算机的功能-tcp / ip connection-oriented mode of procedure, adapted from the book of excellence, joined the server can broadcast LAN can find the computer's functions

用TCP/IP进行网际互联 第二本，设计实现与内核，TCP/IP网络编程必备经典。-Using TCP/IP internetworking to second, with the core design implementation, TCP/IP network programming classic essential.