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Qt5学习笔记 | 信号槽

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在 Qt 5 中，QObject::connect()有五个重载：

QMetaObject::Connection connect(const QObject *, const char *,
                                const QObject *, const char *,
                                Qt::ConnectionType);
 
QMetaObject::Connection connect(const QObject *, const QMetaMethod &,
                                const QObject *, const QMetaMethod &,
                                Qt::ConnectionType);
 
QMetaObject::Connection connect(const QObject *, const char *,
                                const char *,
                                Qt::ConnectionType) const;
 
QMetaObject::Connection connect(const QObject *, PointerToMemberFunction,
                                const QObject *, PointerToMemberFunction,
                                Qt::ConnectionType)
 
QMetaObject::Connection connect(const QObject *, PointerToMemberFunction,
                                Functor);
QMetaOb


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