如何将PyQt5 QLineEdit响应存储到字典中特定位置的字典中

import sys
from PyQt5.QtWidgets import QApplication, QMainWindow, QLineEdit
from PyQt5.QtCore import pyqtSlot

class MyWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.setGeometry(100, 100, 300, 200)
        
        self.text_dict = {}  # 创建一个空字典
        
        self.line_edit = QLineEdit(self)
        self.line_edit.setGeometry(50, 50, 200, 30)
        self.line_edit.textChanged.connect(self.on_text_changed)  # 将文本变化的信号连接到槽函数

    @pyqtSlot(str)
    def on_text_changed(self, text):
        self.text_dict['specific_key'] = text  # 将文本存储到字典中特定位置的字典中

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