详细而系统地介绍了QT中的信号和槽的概念。对于理由QT程序的运行机制非常有帮助

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基于QT编写的信号和槽之间关联的工程，供理解和学习QT的信号和槽-QT based on the preparation of the signal and slot between the project, for understanding and learning QT signals and slots