创建一个继承自QObject的新类，并定义信号和槽。

from PyQt5.QtCore import QObject, pyqtSignal, pyqtSlotclass MyClass(QObject):    my_signal = pyqtSignal(str, str)    def __init__(self, parent=None):        super().__init__(parent)        self.my_signal.connect(self.on_my_signal)    @pyqtSlot(str, str)    def onMySignal(self, arg1, arg2):        print('Received signal with arguments:', arg1, arg2)

在主程序中创建类实例并使用槽。

if __name__ == "__main__":import sysfrom PyQt5.QtWidgets import QApplicationapp = QApplication(sys.argv)my_class = MyClass()my_class.my_signal.emit('Hello', 'World')sys.exit(app.exec_())

编写测试用例以验证信号和槽的正确工作。

import unittestclass TestMyClass(unittest.TestCase):    def testSignalSlot(self):        my_class = MyClass()        from unittest.mock import patch        with patch('__main__.MyClass.on_my_signal') as mocked_method:            my_class.my_signal.emit('Hello', 'World')        mocked_method.assert_called_once_with('Hello', 'World')

实现QML与Python的交互，结合人工智能大模型。

from PyQt5 import QtCore, QtQuickclass MyApp(QtCore.QObject):    def __init__(self, parent=None):        super().__init__(parent)        self.engine = QtQml.QQmlApplicationEngine()        self.context = self.engine.rootContext()        self.context.setContextProperty("myApp", self)        self.engine.load('main.qml')    def processText(self, text):        return "Processed text: " + textif __name__ == '__main__':import sysfrom PyQt5.QtWidgets import QtWidgetsapp = QtWidgets.QApplication(sys.argv)my_app = MyApp()sys.exit(app.exec_())