Event=signal
event function=signal slot
A signal can be bound to multiple slots, and a slot can intercept multiple signals.
One of the more convenient points in QtDesigner is that you can quickly complete some basic signal and slot settings through Edit.
1.
Deploy the controls first: 2. Edit—Edit signal/slot
Left-click to drag the signal sending ground to the signal receiving ground.
3. Run
self.pushButton.clicked.connect(MainWindow.close)
self.checkBox.toggled['bool'].connect(self.lineEdit.setVisible)
self.checkBox_2.toggled['bool'].connect(self.textEdit.setEnabled)