使用QAbstractTableModel在pyqts QTableView中插入和删除行

from PyQt5.QtCore import Qt, QAbstractTableModel

class CustomTableModel(QAbstractTableModel):
    def __init__(self, data, headers):
        super().__init__()
        self._data = data
        self._headers = headers

    def rowCount(self, parent=None):
        return len(self._data)

    def columnCount(self, parent=None):
        return len(self._headers)

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

    def setData(self, index, value, role=Qt.EditRole):
        if role == Qt.EditRole:
            row = index.row()
            col = index.column()
            self._data[row][col] = value
            self.dataChanged.emit(index, index)
            return True
        return False

    def insertRows(self, position, rows, parent=QtCore.QModelIndex()):
        self.beginInsertRows(parent, position, position + rows - 1)
        for _ in range(rows):
            self._data.insert(position, [None] * self.columnCount())
        self.endInsertRows()
        return True

    def removeRows(self, position, rows, parent=QtCore.QModelIndex()):
        self.beginRemoveRows(parent, position, position + rows - 1)
        del self._data[position:position + rows]
        self.endRemoveRows()
        return True

# 创建数据和表头
data = [
    ['John', 'Doe', 30],
    ['Jane', 'Smith', 25],
    ['Bob', 'Johnson', 35]
]
headers = ['First Name', 'Last Name', 'Age']

# 创建自定义的表格数据模型
model = CustomTableModel(data, headers)

# 创建QTableView控件，并将数据模型设置给它
table_view = QTableView()
table_view.setModel(model)

# 在指定位置插入新的行
model.insertRows(1, 2)

# 删除指定的行
model.removeRows(0, 1)