QBluetoothUuid 中没有名为“SerialPort”的成员

QBluetoothUuid确实没有名为“SerialPort”的成员。如果您需要使用蓝牙串口通信（Bluetooth Serial Port Profile），可以使用QBluetoothServiceDiscoveryAgent和QBluetoothSocket来实现。以下是一个简单的示例：

#include <QtBluetooth>
#include <QDebug>

class BluetoothManager : public QObject
{
    Q_OBJECT

public:
    explicit BluetoothManager(QObject *parent = nullptr);

public slots:
    void startDiscovery();
    void deviceDiscovered(const QBluetoothDeviceInfo &deviceInfo);
    void serviceDiscovered(const QBluetoothServiceInfo &serviceInfo);
    void socketConnected();
    void socketDisconnected();
    void socketError(QBluetoothSocket::SocketError error);
    void socketReadyRead();

private:
    QBluetoothServiceDiscoveryAgent *m_discoveryAgent = nullptr;
    QBluetoothSocket *m_socket = nullptr;
};

BluetoothManager::BluetoothManager(QObject *parent)
    : QObject(parent)
{
    m_discoveryAgent = new QBluetoothServiceDiscoveryAgent(this);

    connect(m_discoveryAgent, &QBluetoothServiceDiscoveryAgent::deviceDiscovered,
            this, &BluetoothManager::deviceDiscovered);
    connect(m_discoveryAgent, &QBluetoothServiceDiscoveryAgent::serviceDiscovered,
            this, &BluetoothManager::serviceDiscovered);
}

void BluetoothManager::startDiscovery()
{
    m_discoveryAgent->start();
}

void BluetoothManager::deviceDiscovered(const QBluetoothDeviceInfo &deviceInfo)
{
    qDebug() << "Device discovered:" << deviceInfo.name() << deviceInfo.address().toString();
}

void BluetoothManager::serviceDiscovered(const QBluetoothServiceInfo &serviceInfo)
{
    if (serviceInfo.serviceUuid() == QBluetoothUuid::SerialPort) {
        qDebug() << "Serial port service discovered:" << serviceInfo.serviceName() << serviceInfo.device().address().toString();

        if (m_socket) {
            m_socket->disconnectFromService();
            m_socket->deleteLater();
            m_socket = nullptr;
        }

        m_socket = new QBluetoothSocket(QBluetoothServiceInfo::RfcommProtocol, this);

        connect(m_socket, &QBluetoothSocket::connected, this, &BluetoothManager::socketConnected);
        connect(m_socket, &QBluetoothSocket::disconnected, this, &BluetoothManager::socketDisconnected);
        connect(m_socket, &QBluetoothSocket::errorOccurred, this, &BluetoothManager::socketError);
        connect(m_socket, &QBluetoothSocket::readyRead, this, &BluetoothManager::socketReadyRead);

        m_socket->connectToService(serviceInfo);
    }
}

void BluetoothManager::socketConnected()
{
    qDebug() << "Socket connected:" << m_socket->peerName() << m_socket->peerAddress().toString();
}

void BluetoothManager::socketDisconnected()
{
    qDebug() << "Socket disconnected";
}

void BluetoothManager::socketError(QBluetoothSocket::SocketError error)
{
    qDebug() << "Socket error:" << error << m_socket->errorString();
}

void BluetoothManager::socketReadyRead()
{
    qDebug() << "Data received:" << m_socket->readAll();
}

在上面的示例中，BluetoothManager类使用QBluetoothServiceDiscoveryAgent来发现蓝牙设备和服务。当发现一个名为“Serial Port”的服务时，它将使用QBluetoothSocket来连接到该服务，并在接收到数据时打印出来。注意，要使用QBluetoothSocket连接到服务，您需要知道服务的地址和端口号。这些信息可以在QBluetoothServiceInfo对象中找到。