PyQt -将组合框文本传递给变量

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QComboBox

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.comboBox = QComboBox(self)
        self.comboBox.addItem("Option 1")
        self.comboBox.addItem("Option 2")
        self.comboBox.addItem("Option 3")
        self.comboBox.currentIndexChanged.connect(self.onComboBoxIndexChanged)

    def onComboBoxIndexChanged(self, index):
        selected_text = self.comboBox.currentText()
        print("Selected text:", selected_text)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    mainWindow = MainWindow()
    mainWindow.show()
    sys.exit(app.exec_())