Python---开发程序右键全屏和退出全屏

最近在学习Python，我想要开发一个软件，记录一下：

简单功能1：实现右键【全屏】和【退出】

from PyQt5.QtWidgets import QApplication, QWidget, QMenu, QAction
from PyQt5.QtCore import Qt

class MyWindow(QWidget):
    def __init__(self):
        super().__init__()
        self.initUI()
        
    def initUI(self):
        self.setWindowTitle("我的第一个 PyQt 程序")
        self.setGeometry(100, 100, 400, 300)
        
        # 设置窗口支持右键菜单
        self.setContextMenuPolicy(Qt.CustomContextMenu)
        self.customContextMenuRequested.connect(self.showContextMenu)
        
        # 创建右键菜单
        self.contextMenu = QMenu(self)
        
        # 创建全屏动作
        self.fullscreenAction = QAction("全屏", self)
        self.fullscreenAction.triggered.connect(self.toggleFullscreen)
        
        # 创建退出动作
        self.exitAction = QAction("退出", self)
        self.exitAction.triggered.connect(self.close)
        
        # 将动作添加到菜单
        self.contextMenu.addAction(self.fullscreenAction)
        self.contextMenu.addAction(self.exitAction)
        
    def showContextMenu(self, position):
        # 根据当前状态更新菜单文本
        if self.isFullScreen():
            self.fullscreenAction.setText("退出全屏")
        else:
            self.fullscreenAction.setText("全屏")
            
        # 显示右键菜单
        self.contextMenu.exec_(self.mapToGlobal(position))
        
    def toggleFullscreen(self):
        if self.isFullScreen():
            self.showNormal()  # 退出全屏
            self.fullscreenAction.setText("全屏")
        else:
            self.showFullScreen()  # 进入全屏
            self.fullscreenAction.setText("退出全屏")
            
    def keyPressEvent(self, event):
        # 添加键盘快捷键支持：F11切换全屏，Esc退出全屏
        if event.key() == Qt.Key_F11:
            self.toggleFullscreen()
        elif event.key() == Qt.Key_Escape and self.isFullScreen():
            self.showNormal()
            self.fullscreenAction.setText("全屏")
        else:
            super().keyPressEvent(event)

# 创建应用实例
app = QApplication([])

# 创建主窗口
window = MyWindow()

# 显示窗口
window.show()

# 运行应用
app.exec_()

打完收工！