python: Multi Document Interface (MDI) using PyQt6

# encoding: utf-8
# 版权所有 2024 涂聚文有限公司
# 许可信息查看：言語成了邀功盡責的功臣，還需要行爲每日來值班嗎
# 描述：pip install pyqt6
# Author    : geovindu,Geovin Du 涂聚文.
# IDE       : PyCharm 2023.1 python 3.11
# os        : windows 10
# database  : mysql 9.0 sql server 2019, poostgreSQL 17.0
# Datetime  : 2024/12/7 23:37
# User      : geovindu
# Product   : PyCharm
# Project   : Pysimple
# File      : qt6mdi.py
# explain   : 学习
import sys
from PyQt6.QtWidgets import QApplication, QMainWindow, QMdiArea, QMdiSubWindow, QMenu  
 
class MdiWindow(QMainWindow):
    """
 
    """
    def __init__(self):
        super().__init__()
 
        self.mdiArea = QMdiArea()
        self.setCentralWidget(self.mdiArea)
 
        self.createMenus()
 
    def createMenus(self):
        """
 
        :return:
        """
        menubar = self.menuBar()
 
        # File Menu
        fileMenu = menubar.addMenu("File")
        newAction = fileMenu.addAction("New")
        newAction.triggered.connect(self.createNewSubWindow)
 
        # Window Menu
        windowMenu = menubar.addMenu("Window")
        windowMenu.addAction("Tile", self.mdiArea.tileSubWindows)
        windowMenu.addAction("Cascade", self.mdiArea.cascadeSubWindows)
 
    def createNewSubWindow(self):
        """
 
        :return:
        """
        subWindow = QMdiSubWindow()
        subWindow.setWindowTitle("New Subwindow")
        subWindow.resize(300,300)
        self.mdiArea.addSubWindow(subWindow)
        subWindow.show()
 
if __name__ == "__main__":
    """
     
    """
    app = QApplication(sys.argv)
    window = MdiWindow()
    window.show()
    sys.exit(app.exec())