Qt object model and the signal slot concept - TecgrafPUC-Rio

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QObject::connect: No such slot DesktopProtocol::_k_slotRedirection No such slot DesktopProtocol::_k_slotRedirection

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spinomenal slot demo Object::connect:No such slot 我自己定义的slot怎么会说没有呢？？ public: FtpLogin; ~FtpLogin(); bool logIn(