buttonClicked() 方法用于 QMessageBox 上的按钮

Question

我想在单击QMessageBox上的"确定"按钮时调用"removeDuplicate"方法。但是当我单击按钮时，该方法不会执行。我该怎么办？ 这是我的代码片段：

def removeDuplicate(self):
curItem = self.listWidget_2.currentItem()
self.listWidget_2.takeItem(curItem)
def error_popup(self):
msg=QtWidgets.QMessageBox()
msg.setText("You can't select more than one wicket-keeper.")
msg.setWindowTitle(" ")
msg.setIcon(QtWidgets.QMessageBox.Critical)
x = msg.exec_()
msg.setStandardButtons(QtWidgets.QMessageBox.Ok)
msg.buttonClicked.connect(self.removeDuplicate)

Answer 1

试试看：

import sys
from PyQt5.Qt import *
from PyQt5 import QtGui, QtCore, QtWidgets

class Window(QWidget):
def __init__(self):
super().__init__()

self.error_popup()
def removeDuplicate(self):
print('def removeDuplicate(self): ...')
#        curItem = self.listWidget_2.currentItem()
#        self.listWidget_2.takeItem(curItem)
def error_popup(self):
msg = QMessageBox.critical(
self, 
'Title', 
"You can't select more than one wicket-keeper", 
QMessageBox.Yes | QMessageBox.Cancel
)
if msg == QMessageBox.Yes:
#            msg.buttonClicked.connect(self.removeDuplicate)
print('Ok')
self.removeDuplicate()

if __name__ == "__main__":
App = QApplication(sys.argv)
window = Window()
window.show()
sys.exit(App.exec_())