qtablewidget 设置水平标题标签可编辑添加的行

Question

如何通过双击为添加的行编辑 qtablewidget 中水平标题的标签？我从这里获取代码并对其进行了调整，但它不会更改添加列的名称。我正在使用 python 3.6 和 pyqt5。from PyQt5 import QtWidgetsimport sysfrom PyQt5.QtWidgets import QApplication, QWidget, QInputDialog, QLineEditclass MyWindow(QtWidgets.QWidget):    def __init__(self, parent=None):        super(MyWindow, self).__init__(parent)        self.table = QtWidgets.QTableWidget(5,5)        self.table.setHorizontalHeaderLabels(['1', '2', '3', '4', '5'])        self.table.setVerticalHeaderLabels(['1', '2', '3', '4', '5'])        self.table.horizontalHeader().sectionDoubleClicked.connect(self.changeHorizontalHeader)        self.button_add_c = QtWidgets.QPushButton('add column', self)        self.button_add_c.clicked.connect(self.click_button_add_c)        layout = QtWidgets.QHBoxLayout()        layout.addWidget(self.table)        layout.addWidget(self.button_add_c)        self.setLayout(layout)    def changeHorizontalHeader(self, index):        oldHeader = self.table.horizontalHeaderItem(index).text()        newHeader, okPressed  = QInputDialog.getText(self,' Change header label for column %d', "Your name:", QLineEdit.Normal, oldHeader)        if okPressed:            self.table.horizontalHeaderItem(index).setText(newHeader)    def click_button_add_c(self):        culPosition = self.table.columnCount()        self.table.insertColumn(culPosition)if __name__ == '__main__':    app = QtWidgets.QApplication(sys.argv)    main = MyWindow()    main.show()    sys.exit(app.exec_())