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我试图在选择 QTableView 的单元格时触发该操作。我正在使用 selectionChanged 但它仅第一次触发该操作，并且更改单元格选择不会再次触发该操作。我做错了什么。

import sys
from PySide6 import QtCore, QtGui, QtWidgets
from PySide6.QtCore import Qt
import pandas as pd


class TableModel(QtCore.QAbstractTableModel):
def __init__(self, data):
    super(TableModel, self).__init__()
    self._data = data

def data(self, index, role):
    if role == Qt.DisplayRole:
        value = self._data.iloc[index.row(), index.column()]
        return str(value)

def rowCount(self, index):
    return self._data.shape[0]

def columnCount(self, index):
    return self._data.shape[1]

def headerData(self, section, orientation, role):
    # section is the index of the column/row.
    if role == Qt.DisplayRole:
        if orientation == Qt.Horizontal:
            return str(self._data.columns[section])

        if orientation == Qt.Vertical:
            return str(self._data.index[section])


class MainWindow(QtWidgets.QMainWindow):

def __init__(self):
    super().__init__()

    self.table = QtWidgets.QTableView()

    data = pd.DataFrame([
      [1, 9, 2],
      [1, 0, -1],
      [3, 5, 2],
      [3, 3, 2],
      [5, 8, 9],
    ], columns = ['A', 'B', 'C'], index=['Row 1', 'Row 2', 'Row 3', 'Row 4', 'Row 5'])

    self.model = TableModel(data)
    self.table.setModel(self.model)
    selectionModel = self.table.selectionModel()
    selectionModel.selectionChanged.connect(self.printLocation())
    self.setCentralWidget(self.table)

def printLocation(self):
    print(self.table.currentIndex())

app=QtWidgets.QApplication(sys.argv)
window=MainWindow()
window.show()
app.exec_()
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