Using C # to implement network communication based on TCP protocol

TCP protocol is a basic network protocol, basically all network services are based on TCP protocol, such as Http,ftp and so on, so to understand the network programming must understand the TCP protocol based programming. However, the TCP protocol is a complex system, to fully understand its implementation is not a day two days of Kung Fu, fortunately, in the. NET Framework environment, we do not have to pursue the implementation of TCP protocol at the bottom, it is easy to write a TCP protocol based on the network communication program.