qt怎么和服务器建立连接

#include <QtNetwork>

// 建立连接的槽函数
void connectedToServer()
{
    qDebug() << "Connected to server";
}

// 处理接收到的数据的槽函数
void readyRead()
{
    QTcpSocket* socket = qobject_cast<QTcpSocket*>(sender());
    if (socket) {
        QByteArray data = socket->readAll();
        qDebug() << "Received data:" << data;
    }
}

int main(int argc, char *argv[])
{
    QCoreApplication a(argc, argv);

    QTcpSocket socket;
    QObject::connect(&socket, &QTcpSocket::connected, connectedToServer);
    QObject::connect(&socket, &QTcpSocket::readyRead, readyRead);

    socket.connectToHost("服务器IP地址", 服务器端口号);

    return a.exec();
}