pyqt5 MainWidget 重写 关闭窗口 事件
代码如下:
from PyQt5.QtCore import *
from PyQt5.QtWidgets import *
from PyQt5.QtGui import *
from PyQt5.QtWebEngineWidgets import *
from PyQt5.QtPrintSupport import *
import os
import sys
import sys
from PyQt5.QtWidgets import QMainWindow , QApplication, QMessageBox
from PyQt5.QtGui import QIcon
class MainWidget(QMainWindow):
def __init__(self,parent=None):
super(MainWidget,self).__init__(parent)
# 设置主窗体标签
self.setWindowTitle("QMainWindow 例子")
self.resize(400, 200)
def closeEvent(self, event):
"""
重写closeEvent方法,实现dialog窗体关闭时执行一些代码
:param event: close()触发的事件
:return: None
"""
reply = QMessageBox.question(self,
'本程序',
"是否要退出程序?",
QMessageBox.Yes | QMessageBox.No,
QMessageBox.No)
if reply == QMessageBox.Yes:
event.accept()
else:
event.ignore()
if __name__ == "__main__":
app = QApplication(sys.argv)
app.setWindowIcon(QIcon("./images/cartoon1.ico"))
main = MainWidget()
main.show()
sys.exit(app.exec_())
运行效果: