您可以使用 QEventLoop 等待信号。只需将信号连接到 QEventLoop :: quit（），然后调用 QEventLoop :: exec（） p>

You can use QEventLoop to wait for a signal. Just connnect the signal to QEventLoop::quit(), and then call QEventLoop::exec().

QFtp ftp;
QEventLoop eventLoop;
connect(&ftp, SIGNAL(commandFinished(int,bool)), &eventLoop, SLOT(quit()));
eventLoop.exec();