我有一个基类，它定义了一个Qt插槽classBase{public:Base(){connect(otherobject,SIGNAL(mySignal),this,SLOT(mySlot));}publicslots:virtualvoidmySlot(){}}子类A只是实现了一些其他的东西。子类B覆盖插槽classSubB:Base{public:SubB():Base(){//Necessary?connect(otherobject,SIGNAL(mySignal),this,SLOT(mySlot));}publicslots:virtualvoidmySlot()overr