QHeaderView 的行索引和每行文本之间有轻微的垂直偏移

Question

如图所示，行索引与每行内容之间存在轻微的垂直偏移。我该如何解决这个问题？对了，怎样才能让行索引从1开始而不是从0开始呢？

class PandasModel(QAbstractTableModel):
    """A model to interface a Qt view with pandas dataframe """

    def __init__(self, dataframe: pd.DataFrame, parent=None):
        QAbstractTableModel.__init__(self, parent)
        self._dataframe = dataframe

    def rowCount(self, parent=QModelIndex()) -> int:
        """ Override method from QAbstractTableModel

        Return row count of the pandas DataFrame
        """
        if not parent.isValid():
            return len(self._dataframe)
        return 0

    def columnCount(self, parent=QModelIndex()) -> int:
        """Override method from QAbstractTableModel

        Return column count of the pandas DataFrame
        """
        if not parent.isValid():
            return len(self._dataframe.columns)
        return 0

    def data(self, index: QModelIndex, role=Qt.ItemDataRole) -> any:
        """Override method from QAbstractTableModel

        Return data cell from the pandas DataFrame
        """
        if not index.isValid():
            return None

        if role == Qt.ItemDataRole.DisplayRole:
            return str(self._dataframe.iloc[index.row(), index.column()])

        if role == Qt.ItemDataRole.TextAlignmentRole:
            return Qt.AlignmentFlag.AlignLeft | Qt.AlignmentFlag.AlignVCenter  # Set the alignment to Left

        return None

    def headerData(self, section: int, orientation: Qt.Orientation, role: Qt.ItemDataRole) -> any:
        """Override method from QAbstractTableModel

        Return dataframe index as vertical header data and columns as horizontal header data.
        """
        if role == Qt.ItemDataRole.DisplayRole:
            if orientation == Qt.Orientation.Horizontal:
                return str(self._dataframe.columns[section])

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

        return None


def creat_table(qtable_view, data):
    qtable_view: QTableView
    qtable_view.setStyleSheet(STYLE_SHEET["table_view"])
    qtable_view.horizontalHeader().setStretchLastSection(True)
    qtable_view.setAlternatingRowColors(True)
    qtable_view.setSelectionBehavior(QTableView.SelectionBehavior.SelectRows)  # Updated API

    # Hide the row headers (vertical header)
    # qtable_view.verticalHeader().setVisible(False)

    model = PandasModel(data)
    qtable_view.setModel(model)

我尝试调整字体大小和对齐方式，但都不起作用。