How to Expose a Qt C++ Class with Signals and Slots to QML

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，

Basic ConceptsPermalink Signals and slots are used for communication between objects Signals are emitted by objects when they change their state in a way that

signal and slot arguments are not compatible The signals and slots mechanism is fundamental to Qt programming It enables the application programmer to bind objects together without the

signal and slot Signals and slots is a language construct introduced in Qt for communication between objects which makes it easy to implement the Observer pattern while