PyQt5 signalslot connection performance

PyQt5 signalslot connection performance signal and slot In signal-slot mechanism, very similar to observer pattern, you connect a signal to a slot, and when that signal is emitted, all slots are signal slot SignalSlot is a pattern that allows loose coupling various components of a software without having to introduce boilerplate code Loose coupling of components

signal slot Signalslot connection in sequence diagram · consider data flow is from B to A · consider component_B as the emitter of this signal “S” carrying

signal and slot in qt Signals and slots are loosely coupled: A class which emits a signal neither knows nor cares which slots receive the signal Qt's signals and slots mechanism 使用Qt的信号和槽（Signals and Slots）机制有以下好处：松耦合：通过信号和槽，对象之间的通信是松耦合的。发送者不需要知道接收者的具体实现细节，