用windo环境编译用c语言完成一个基于socket网络编程的信息收发程序。要求如下： 1单机同时模拟完成服务器端和客户端的功能即可； 2功能要求客户端发一条消息，服务器端收到对应得消息

以下是一个基于socket网络编程的信息收发程序的代码实现，该程序在Windows环境下使用C语言编写，同时模拟了服务器端和客户端的功能。

服务器端代码：

#include <stdio.h>
#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

int main()
{
    // 初始化Winsock
    WSADATA wsaData;
    int iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
    if (iResult != 0) {
        printf("WSAStartup failed: %d\n", iResult);
        return 1;
    }

    // 创建一个socket来监听连接请求
    SOCKET listenSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (listenSocket == INVALID_SOCKET) {
        printf("socket failed: %ld\n", WSAGetLastError());
        WSACleanup();
        return 1;
    }

    // 绑定socket到指定的IP地址和端口号
    sockaddr_in service;
    service.sin_family = AF_INET;
    service.sin_addr.s_addr = INADDR_ANY;
    service.sin_port = htons(27015);

    if (bind(listenSocket, (SOCKADDR *) &service, sizeof(service)) == SOCKET_ERROR) {
        printf("bind failed: %ld\n", WSAGetLastError());
        closesocket(listenSocket);
        WSACleanup();
        return 1;
    }

    // 监听连接请求
    if (listen(listenSocket, SOMAXCONN) == SOCKET_ERROR) {
        printf("listen failed: %ld\n", WSAGetLastError());
        closesocket(listenSocket);
        WSACleanup();
        return 1;
    }

    printf("Waiting for client to connect...\n");

    // 接受客户端的连接请求
    SOCKET clientSocket = INVALID_SOCKET;
    clientSocket = accept(listenSocket, NULL, NULL);
    if (clientSocket == INVALID_SOCKET) {
        printf("accept failed: %ld\n", WSAGetLastError());
        closesocket(listenSocket);
        WSACleanup();
        return 1;
    }

    printf("Client connected.\n");

    // 接收来自客户端的消息
    char recvbuf[1024];
    int recvbuflen = 1024;
    iResult = recv(clientSocket, recvbuf, recvbuflen, 0);
    if (iResult > 0) {
        printf("Message received: %s\n", recvbuf);
    } else if (iResult == 0) {
        printf("Connection closed.\n");
    } else {
        printf("recv failed: %d\n", WSAGetLastError());
    }

    // 关闭socket和Winsock
    closesocket(clientSocket);
    closesocket(listenSocket);
    WSACleanup();

    return 0;
}

客户端代码：

#include <stdio.h>
#include <winsock2.h>

#pragma comment(lib, "ws2_32.lib")

int main()
{
    // 初始化Winsock
    WSADATA wsaData;
    int iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
    if (iResult != 0) {
        printf("WSAStartup failed: %d\n", iResult);
        return 1;
    }

    // 创建一个socket来连接服务器
    SOCKET connectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (connectSocket == INVALID_SOCKET) {
        printf("socket failed: %ld\n", WSAGetLastError());
        WSACleanup();
        return 1;
    }

    // 设置服务器的IP地址和端口号
    sockaddr_in serverAddr;
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
    serverAddr.sin_port = htons(27015);

    // 连接服务器
    iResult = connect(connectSocket, (SOCKADDR *) &serverAddr, sizeof(serverAddr));
    if (iResult == SOCKET_ERROR) {
        printf("connect failed: %ld\n", WSAGetLastError());
        closesocket(connectSocket);
        WSACleanup();
        return 1;
    }

    printf("Connected to server.\n");

    // 发送消息给服务器
    char sendbuf[1024] = "Hello, server!";
    int sendbuflen = strlen(sendbuf);

    iResult = send(connectSocket, sendbuf, sendbuflen, 0);
    if (iResult == SOCKET_ERROR) {
        printf("send failed: %d\n", WSAGetLastError());
        closesocket(connectSocket);
        WSACleanup();
        return 1;
    }

    printf("Message sent.\n");

    // 关闭socket和Winsock
    closesocket(connectSocket);
    WSACleanup();

    return 0;
}

运行这两个程序，先运行服务器端，然后再运行客户端，客户端会向服务器端发送一条消息，服务器端收到对应的消息并输出到控制台。