pyqt4中信号与槽语法在pyqt5中怎么写？具体代码如下
问题描述：
self.connect(action, SIGNAL(signal), slot)我改成
self.SIGNAL(signal).connect.slot
提示'MainWindow' object has no attribute 'SIGNAL'
应该怎么办？？
self.connect(action, SIGNAL(signal), slot)我改成
self.SIGNAL(signal).connect.slot
提示'MainWindow' object has no attribute 'SIGNAL'
应该怎么办？？