请你用c++ 写一个建立网络通信的 程序

好的，以下是一个使用 C 语言实现的简单的网络通信程序的例子：

#include <stdio.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <string.h>

#define PORT 8080
#define MAX_BUF_LEN 1024

int main(int argc, char const *argv[]) {
  int server_socket, client_socket;
  struct sockaddr_in server_address;
  char buffer[MAX_BUF_LEN];

  // 创建 socket
  server_socket = socket(AF_INET, SOCK_STREAM, 0);
  if (server_socket < 0) {
    printf("创建 socket 失败\n");
    return 1;
  }

  // 填写服务器信息
  server_address.sin_family = AF_INET;
  server_address.sin_port = htons(PORT);
  server_address.sin_addr.s_addr = htonl(INADDR_ANY);

  // 绑定 socket 到服务器信息
  if (bind(server_socket, (struct sockaddr *)&server_address, sizeof(server_address)) < 0) {
    printf("绑定 socket 失败\n");
    return 1;
  }

  // 监听 socket
  if (listen(server_socket, 10) < 0) {
    printf("监听 socket 失败\n");
    return 1;
  }

  // 接收客户端连接请求
  printf("等待客户端连接...\n");
  client_socket = accept(server_socket, NULL, NULL);
  if (client_socket < 0) {
    printf("接收客户端连接请求失败\n");
    return 1;
  }

  // 接收客户端的数据
  int bytes_received = recv(client_socket, buffer, MAX_BUF_LEN, 0);
  if (bytes_received < 0) {
    printf("接收客户端数据失败\n");
    return 1;
  }

  // 向客户端发送数据
  int bytes_sent = send(client_socket, buffer, bytes_received, 0);
  if (bytes_sent < 0) {
    printf("向客户端发送数据失败\n");
    return 1;
  }

  printf("已经成功接收