我正在使用 QTableView 構(gòu)建自定義日歷視圖，并希望有一個 QItemSelectionModel 可以按天和周連續(xù)選擇單元格。不確定從哪里開始，因為選擇模型不與視圖交互。視圖的 onCurrentChange 方法提供當(dāng)前索引，在 selectionModel 中不起作用。視圖通常連接到更復(fù)雜的日歷模型；這里的表格模型是為了說明。from PyQt5.QtCore import QModelIndex, QDatefrom PyQt5.QtCore import Qt, QAbstractTableModel, QItemSelectionModelfrom PyQt5.QtWidgets import QTableViewimport typingclass TableModel(QAbstractTableModel):    def __init__(self):        super(TableModel, self).__init__()    def headerData(self, section: int, orientation: Qt.Orientation, role: int = ...) -> typing.Any:        if orientation == Qt.Horizontal and role == Qt.DisplayRole:            return QDate.longDayName(section + 1)    def data(self, index, role):        if role == Qt.DisplayRole:            return index.row() * 7 + index.column() + 1    def rowCount(self, index):        return 6    def columnCount(self, index):        return 7class CalendarSelectionModel(QItemSelectionModel):    def __init__(self, *args, **kwargs):        super(CalendarSelectionModel, self).__init__(*args, *kwargs)    def currentChanged(self, current: QModelIndex, previous: QModelIndex) -> None:        print(current, previous)class CalendarView(QTableView):    def __init__(self):        super(CalendarView, self).__init__()    # def currentChanged(self, current: QModelIndex, previous: QModelIndex) -> None:    #     print(current)if __name__ == '__main__':    import sys    from PyQt5.QtWidgets import QApplication, QTableView    app = QApplication(sys.argv)    model = TableModel()    cal = CalendarView()    cal.setModel(model)    sel = CalendarSelectionModel(model)    cal.setSelectionModel(sel)    cal.show()    cal.resize(860, 640)    sys.exit(app.exec_())