我可以在qt中发出一系列信号吗？

#include <QObject>

class MyObject : public QObject
{
    Q_OBJECT

public:
    MyObject(QObject *parent = nullptr) : QObject(parent) {}

signals:
    void signal1();
    void signal2(int value);
    void signal3(const QString &text);
};

int main()
{
    MyObject obj;

    // 连接信号和槽
    QObject::connect(&obj, &MyObject::signal1, [](){
        qDebug() << "Signal 1 emitted";
    });

    QObject::connect(&obj, &MyObject::signal2, [](int value){
        qDebug() << "Signal 2 emitted with value:" << value;
    });

    QObject::connect(&obj, &MyObject::signal3, [](const QString &text){
        qDebug() << "Signal 3 emitted with text:" << text;
    });

    // 发出信号
    emit obj.signal1();
    emit obj.signal2(42);
    emit obj.signal3("Hello, world!");

    return 0;
}