使用pyqt5 QAbstractTableModel时将箭头键连接到方法

from PyQt5.QtCore import Qt, QAbstractTableModel
from PyQt5.QtWidgets import QApplication, QTableView

class MyTableModel(QAbstractTableModel):
    def __init__(self, data):
        super().__init__()
        self.data = data

    def rowCount(self, parent):
        return len(self.data)

    def columnCount(self, parent):
        return len(self.data[0])

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

    def keyPressEvent(self, event):
        if event.key() == Qt.Key_Up:
            self.moveUp()
        elif event.key() == Qt.Key_Down:
            self.moveDown()
        elif event.key() == Qt.Key_Left:
            self.moveLeft()
        elif event.key() == Qt.Key_Right:
            self.moveRight()

    def moveUp(self):
        # 处理向上箭头键的操作
        pass

    def moveDown(self):
        # 处理向下箭头键的操作
        pass

    def moveLeft(self):
        # 处理向左箭头键的操作
        pass

    def moveRight(self):
        # 处理向右箭头键的操作
        pass

if __name__ == '__main__':
    app = QApplication([])
    data = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]
    model = MyTableModel(data)
    view = QTableView()
    view.setModel(model)
    view.show()
    app.exec_()