connect官方文档:
static QMetaObject::Connection connect(const QObject *sender, const char *signal,
const QObject *receiver, const char *member, Qt::ConnectionType = Qt::AutoConnection);
详情参考:信号槽(SINAL-SLOT)
connect官方文档:
static QMetaObject::Connection connect(const QObject *sender, const char *signal,
const QObject *receiver, const char *member, Qt::ConnectionType = Qt::AutoConnection);
详情参考:信号槽(SINAL-SLOT)