vc++6.0 tcp服务器

以下是一个简单的 VC++ 6.0 TCP 服务器程序示例：

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

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

int main() {
    WSADATA wsa;
    SOCKET s, new_socket;
    struct sockaddr_in server, client;
    int c;
    char *message;

    printf("\nInitializing Winsock...");
    if (WSAStartup(MAKEWORD(2, 2), &wsa) != 0) {
        printf("WSAStartup failed. Error Code : %d", WSAGetLastError());
        return 1;
    }

    printf("Initialized.");

    if ((s = socket(AF_INET, SOCK_STREAM, 0)) == INVALID_SOCKET) {
        printf("Could not create socket : %d", WSAGetLastError());
    }

    printf("Socket created.");

    server.sin_family = AF_INET;
    server.sin_addr.s_addr = INADDR_ANY;
    server.sin_port = htons(8888);

    if (bind(s, (struct sockaddr *)&server, sizeof(server)) == SOCKET_ERROR) {
        printf("Bind failed with error code : %d", WSAGetLastError());
    }

    puts("Bind done");

    listen(s, 3);

    puts("Waiting for incoming connections...");

    c = sizeof(struct sockaddr_in);

    while ((new_socket = accept(s, (struct sockaddr *)&client, &c)) != INVALID_SOCKET) {
        puts("Connection accepted");

        message = "Hello Client, I have received your connection. But I have to go now, bye\n";
        send(new_socket, message, strlen(message), 0);

        closesocket(new_socket);
    }

    if (new_socket == INVALID_SOCKET) {
        printf("accept failed with error code : %d", WSAGetLastError());
        return 1;
    }

    closesocket(s);
    WSACleanup();

    return 0;
}

此示例创建了一个 TCP 服务器，它侦听来自客户端的连接，并向客户端发送一条消息，然后关闭连接。你可以根据自己的需求来修改这个示例。