有人可以向我解释为什么没有在基类插槽中调用重写的方法，而是我有一个方法的基本版本:classThreadsDispatcher:publicQObject{Q_OBJECTpublic:explicitThreadsDispatcher(QObject*parent=0);virtual~ThreadsDispatcher();virtualvoidOnThreadFinished(IThreadable*pWorker);publicslots:voidslotThreadFinished(IThreadable*pWorker);};voidThreadsDispatcher::s