C++实现Socket 实现猜数字小游戏

好的，下面是C++实现Socket实现猜数字小游戏的代码示例：

服务端代码：

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <unistd.h>

using namespace std;

int main()
{
    // 创建套接字
    int listenFd = socket(AF_INET, SOCK_STREAM, 0);
    if (listenFd == -1)
    {
        cerr << "Failed to create socket!" << endl;
        return -1;
    }

    // 配置地址
    struct sockaddr_in serverAddr;
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = htonl(INADDR_ANY);
    serverAddr.sin_port = htons(8080);

    // 绑定地址
    if (bind(listenFd, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) == -1)
    {
        cerr << "Failed to bind address!" << endl;
        return -1;
    }

    // 监听端口
    if (listen(listenFd, 5) == -1)
    {
        cerr << "Failed to listen on socket!" << endl;
        return -1;
    }

    // 接受连接
    struct sockaddr_in clientAddr;
    socklen_t clientAddrSize = sizeof(clientAddr);
    int connFd = accept(listenFd, (struct sockaddr *)&clientAddr, &clientAddrSize);

    // 生成随机数
    srand(time(NULL));
    int number = rand() % 100 + 1;

    while (true)
    {
        // 读取客户端的猜测
        char buffer[1024];
        int n = read(connFd, buffer, sizeof(buffer));
        if (n == -1)
        {
            cerr << "Failed to read from socket!" << endl;
            break;
        }

        // 处理客户端的猜测
        int guess = stoi(buffer);
        if (guess == number)
        {
            write(connFd, "Correct!", 10);
            break;
        }
        else if (guess > number)
        {
            write(connFd, "Too large!", 11);
        }
        else
        {
            write(connFd, "Too small!", 11);
        }
    }

    // 关闭连接
    close(connFd);
    close(listenFd);

    return 0;
}

客户端代码：

#include <iostream>
#include <string>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <unistd.h>

using namespace std;

int main()
{
    // 创建套接字
    int clientFd = socket(AF_INET, SOCK_STREAM, 0);
    if (clientFd == -1)
    {
        cerr << "Failed to create socket!" << endl;
        return -1;
    }

    // 配置地址
    struct sockaddr_in serverAddr;
    serverAddr.sin_family = AF_INET;
    serverAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
    serverAddr.sin_port = htons(8080);

    // 连接服务器
    if (connect(clientFd, (struct sockaddr *)&serverAddr, sizeof(serverAddr)) == -1)
    {
        cerr << "Failed to connect to server!" << endl;
        return -1;
    }

    while (true)
    {
        // 读取用户的输入
        string input;
        cout << "Please guess a number (1-100): ";
        getline(cin, input);

        // 发送猜测
        if (write(clientFd, input.c_str(), input.size()) == -1)
        {
            cerr << "Failed to write to socket!" << endl;
            break;
        }

        // 读取结果
        char buffer[1024];
        int n = read(clientFd, buffer, sizeof(buffer));
        if (n == -1)
        {
            cerr << "Failed to read from socket!" << endl;
            break;
        }

        // 处理结果
        cout << buffer << endl;
        if (string(buffer) == "Correct!")
        {
            break;
        }
    }

    // 关闭连接
    close(clientFd);

    return 0;
}

运行以上两个程序后，就可以开始猜数字小游戏了。服务端会生成一个1-100之间的随机数，客户端需要输入一个数字进行猜测，服务端会返回猜测结果（太大、太小或正确），直到猜中为止。