轉載:https://blog.csdn.net/yl_best/article/details/83818485
QWidget繼承自QObject和QPaintDevice
QLayout繼承自QObject和QLayoutItem
轉載:https://blog.csdn.net/yl_best/article/details/83818485
QWidget繼承自QObject和QPaintDevice
QLayout繼承自QObject和QLayoutItem
class MetaCls(type): def __new__(cls, *args, **kwargs): print("in MetaCls") # return super(Meta