关于#python#的问题：我用pyqt设计两个模块，一个是combobox，一个是QPlainTextEdit，两者用insertPlainText槽连接起来

我用pyqt设计两个模块，一个是combobox，一个是QPlainTextEdit，两者用insertPlainText槽连接起来，即：

self.shijian.activated['QString'].connect(self.plainTextEdit.insertPlainText)

现在想通过点这combobox使在QPlainTextEdit里的它的文本带有下划线，图解如下

img

import sys
from untitled9 import Ui_MainWindow
import pkgutil
from PyQt5 import QtWidgets
import PyQt5.sip
class mywindow(QtWidgets.QWidget, Ui_MainWindow):  # 这个地方要注意Ui_MainWindow

    def __init__(self):

        super(mywindow, self).__init__()

        self.setupUi(self)

if __name__=="__main__":

    app=QtWidgets.QApplication(sys.argv)

    myshow=mywindow()

    myshow.show()#显示

    sys.exit(app.exec_())











from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.setEnabled(True)
        MainWindow.resize(1354, 942)
        font = QtGui.QFont()
        font.setFamily("仿宋_GB2312")
        font.setPointSize(16)
        font.setUnderline(False)
        MainWindow.setFont(font)
        icon = QtGui.QIcon.fromTheme("按时")
        MainWindow.setWindowIcon(icon)
        MainWindow.setLayoutDirection(QtCore.Qt.LeftToRight)
        MainWindow.setAutoFillBackground(True)

        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setEnabled(True)
        font = QtGui.QFont()
        font.setFamily("黑体")
        font.setPointSize(20)
        font.setUnderline(False)
        self.centralwidget.setFont(font)
        self.centralwidget.setMouseTracking(False)
        self.centralwidget.setTabletTracking(False)
        self.centralwidget.setObjectName("centralwidget")
        self.comboBox_5 = QtWidgets.QComboBox(self.centralwidget)
        self.comboBox_5.setGeometry(QtCore.QRect(200, 260, 331, 39))
        font = QtGui.QFont()
        font.setFamily("黑体")
        font.setPointSize(20)
        font.setItalic(False)
        font.setUnderline(False)
        self.comboBox_5.setFont(font)
        self.comboBox_5.setFocusPolicy(QtCore.Qt.NoFocus)
        self.comboBox_5.setEditable(True)
        self.comboBox_5.setObjectName("comboBox_5")
        self.comboBox_5.addItem("")
        self.comboBox_5.addItem("")
        self.comboBox_5.addItem("")
        self.comboBox_5.addItem("")
        self.comboBox_5.addItem("")
        self.pushButton_4 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_4.setGeometry(QtCore.QRect(10, 250, 160, 50))
        self.pushButton_4.setAutoDefault(False)
        self.pushButton_4.setObjectName("pushButton_4")
        self.plainTextEdit = QtWidgets.QPlainTextEdit(self.centralwidget)
        self.plainTextEdit.setGeometry(QtCore.QRect(580, 110, 711, 701))
        font = QtGui.QFont()
        font.setFamily("黑体")
        font.setPointSize(20)
        font.setUnderline(False)
        self.plainTextEdit.setFont(font)
        self.plainTextEdit.setPlainText("")
        self.plainTextEdit.setObjectName("plainTextEdit")
        self.comboBox = QtWidgets.QComboBox(self.centralwidget)
        self.comboBox.setGeometry(QtCore.QRect(210, 370, 281, 51))
        self.comboBox.setObjectName("comboBox")
        self.comboBox.addItem("")
        self.comboBox.addItem("")
        self.comboBox.addItem("")

        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 1354, 33))
        self.menubar.setDefaultUp(True)
        self.menubar.setObjectName("menubar")

        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setSizeGripEnabled(True)
        self.statusbar.setObjectName("statusbar")


        self.retranslateUi(MainWindow)
        self.comboBox_5.activated['QString'].connect(self.plainTextEdit.insertPlainText) # type: ignore
        self.comboBox.activated['QString'].connect(self.plainTextEdit.insertPlainText) # type: ignore
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "ss"))
        self.comboBox_5.setItemText(0, _translate("MainWindow", "01时"))
        self.comboBox_5.setItemText(1, _translate("MainWindow", "02时"))
        self.comboBox_5.setItemText(2, _translate("MainWindow", "03时"))
        self.comboBox_5.setItemText(3, _translate("MainWindow", "04时"))
        self.comboBox_5.setItemText(4, _translate("MainWindow", "05时"))
        self.pushButton_4.setText(_translate("MainWindow", "E"))
        self.comboBox.setItemText(0, _translate("MainWindow", "一"))
        self.comboBox.setItemText(1, _translate("MainWindow", "二"))
        self.comboBox.setItemText(2, _translate("MainWindow", "三"))

你咋又问了一遍hh

这个问题 你刚不是问过吗 ? 没有解决是吧 ?