TCP socket communication experiment

• Brief experimental steps ：

1)    Carry out orders gcc –o tcp_server tcp_server.c Generate executable files tcp_server.

2)    Carry out orders gcc –o tcp_server tcp_client.c Generate executable files tcp_client.

3)    perform tcp_server

4)    perform tcp_client

5)    Client input

6)    The server receives content

Server side tcp_server.c The code is as follows ：

#include <sys/types.h>

#include <sys/socket.h>

#include <stdio.h>

#include <netinet/in.h>

#include <arpa/