关闭后执行的PyQt5 QDialog代码

from PyQt5.QtWidgets import QApplication, QDialog, QLabel, QVBoxLayout
import sys

class CustomDialog(QDialog):
    def __init__(self):
        super().__init__()

        self.setWindowTitle("Custom Dialog")
        self.layout = QVBoxLayout()
        self.label = QLabel("This is a custom dialog.")
        self.layout.addWidget(self.label)
        self.setLayout(self.layout)

    def closeEvent(self, event):
        # 在对话框关闭之前执行的代码
        print("Closing dialog...")
        # 添加你的代码逻辑

        # 调用父类的closeEvent()方法，确保对话框能够正常关闭
        super().closeEvent(event)

if __name__ == '__main__':
    app = QApplication(sys.argv)
    dialog = CustomDialog()
    dialog.show()
    sys.exit(app.exec_())