PYQT-- 关闭窗体时询问--20240819

# case5 关闭窗体时询问
import sys
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *class MyWidget(QWidget):def __init__(self):super().__init__()self.resize(800,600)self.setWindowTitle('myapp')self.setWindowIcon(QIcon\('./Lena.jpg'))self.setToolTip('^_^ Hello PyQt ^_^')QToolTip.setFont(QFont\('微软雅黑', 12))def closeEvent(self, event):# 重新定义closeEventreply = QMessageBox.question\(self,'提示','确定退出吗？',QMessageBox.Yes,QMessageBox.No)if reply == QMessageBox.Yes:event.accept()else:event.accept()myapp = QApplication(sys.argv)
mywidget = MyWidget()
mywidget.show()
sys.exit(myapp.exec_())