【Qt】互斥按键组

https://blog.csdn.net/zsy19881226/article/details/77825533

• Qt5.9中获取QButtonGroup被选中按钮QPushbutton的ObjectName用法(qobject_cast)

  • https://blog.csdn.net/naibozhuan3744/article/details/82188037

• Qt5.9中一组按钮QPushbutton形成互斥（有且只能选中一个）（单选按钮）

  • https://blog.csdn.net/naibozhuan3744/article/details/82146755