用C语言编写服务器端和客户端的代码实现windows系统的可一对一通信Socket编程

好的，我可以为您提供一个简单的C语言代码示例，用于实现Windows系统上的一对一通信Socket编程。

首先，您需要编写服务器端的代码。以下是一个简单的示例：

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

#pragma comment(lib,"ws2_32.lib") // 链接ws2_32.lib库

int main() {
    WSADATA wsaData;
    SOCKET serverSocket, clientSocket;
    struct sockaddr_in serverAddr, clientAddr;
    int clientAddrLen = sizeof(clientAddr);
    char recvBuf[1024];

    // 初始化Winsock库
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
        printf("WSAStartup failed.\n");
        return -1;
    }

    // 创建服务器端socket
    serverSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (serverSocket == INVALID_SOCKET) {
        printf("Create server socket failed.\n");
        WSACleanup();
        return -1;
    }

    // 绑定服务器端socket到本地IP地址和端口号
    memset(&serverAddr, 0, sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(8888);
    serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);

    if (bind(serverSocket, (struct sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) {
        printf("Bind server socket failed.\n");
        closesocket(serverSocket);
        WSACleanup();
        return -1;
    }

    // 开始监听客户端连接请求
    if (listen(serverSocket, SOMAXCONN) == SOCKET_ERROR) {
        printf("Listen server socket failed.\n");
        closesocket(serverSocket);
        WSACleanup();
        return -1;
    }

    printf("Server is listening...\n");

    // 接受客户端连接请求
    clientSocket = accept(serverSocket, (struct sockaddr*)&clientAddr, &clientAddrLen);
    if (clientSocket == INVALID_SOCKET) {
        printf("Accept client socket failed.\n");
        closesocket(serverSocket);
        WSACleanup();
        return -1;
    }

    printf("Client is connected: %s:%d\n", inet_ntoa(clientAddr.sin_addr), ntohs(clientAddr.sin_port));

    // 接收客户端发送的消息
    while (1) {
        memset(recvBuf, 0, sizeof(recvBuf));
        int ret = recv(clientSocket, recvBuf, sizeof(recvBuf), 0);
        if (ret > 0) {
            printf("Received message from client: %s\n", recvBuf);
        }
        else if (ret == 0) {
            printf("Client is disconnected.\n");
            break;
        }
        else {
            printf("Receive message from client failed.\n");
            break;
        }
    }

    // 关闭socket并清理Winsock库
    closesocket(clientSocket);
    closesocket(serverSocket);
    WSACleanup();

    return 0;
}

接下来是客户端的代码示例：

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

#pragma comment(lib,"ws2_32.lib") // 链接ws2_32.lib库

int main() {
    WSADATA wsaData;
    SOCKET clientSocket;
    struct sockaddr_in serverAddr;
    char sendBuf[1024];

    // 初始化Winsock库
    if (WSAStartup(MAKEWORD(2, 2), &wsaData) != 0) {
        printf("WSAStartup failed.\n");
        return -1;
    }

    // 创建客户端socket
    clientSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    if (clientSocket == INVALID_SOCKET) {
        printf("Create client socket failed.\n");
        WSACleanup();
        return -1;
    }

    // 连接服务器端socket
    memset(&serverAddr, 0, sizeof(serverAddr));
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_port = htons(8888);
    serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");

    if (connect(clientSocket, (struct sockaddr*)&serverAddr, sizeof(serverAddr)) == SOCKET_ERROR) {
        printf("Connect server socket failed.\n");
        closesocket(clientSocket);
        WSACleanup();
        return -1;
    }

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

    // 发送消息到服务器端
    while (1) {
        printf("Please input message to send: ");
        fgets(sendBuf, sizeof(sendBuf), stdin);
        if (send(clientSocket, sendBuf, strlen(sendBuf), 0) == SOCKET_ERROR) {
            printf("Send message to server failed.\n");
            break;
        }
    }

    // 关闭socket并清理Winsock库
    closesocket(clientSocket);
    WSACleanup();

    return 0;
}

请注意，这只是一个简单的示例，您可能需要根据您的需求进行修改和扩展。