python – pyqt kann den Fensterinhalt nicht anzeigen, wenn das Tablewidget-Fenster aufgerufen wird

Question

Ich möchte alle bitten, auf eine Schaltfläche im Hauptfenster zu klicken, um ein neues Fenster aufzurufen. Derzeit kann ein Popup-Fenster implementiert werden, die Tabelle kann jedoch nicht angezeigt werden nur ein leeres Fenster. Ich kann den Grund wirklich nicht finden, bitte geben Sie mir einen Rat.
Dies ist der Hauptfenstercode

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'question.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName(_fromUtf8("MainWindow"))
        MainWindow.resize(344, 244)
        self.centralwidget = QtGui.QWidget(MainWindow)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.pushButton = QtGui.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(110, 80, 121, 61))
        font = QtGui.QFont()
        font.setPointSize(17)
        self.pushButton.setFont(font)
        self.pushButton.setObjectName(_fromUtf8("pushButton"))
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 344, 23))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(MainWindow)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        MainWindow.setStatusBar(self.statusbar)

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow", None))
        self.pushButton.setText(_translate("MainWindow", "Push", None))

Dies ist der Fenstercode, der aufgerufen wird

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'qtable.ui'
#
# Created by: PyQt4 UI code generator 4.11.4
#
# WARNING! All changes made in this file will be lost!

from PyQt4 import QtCore, QtGui

try:
    _fromUtf8 = QtCore.QString.fromUtf8
except AttributeError:
    def _fromUtf8(s):
        return s

try:
    _encoding = QtGui.QApplication.UnicodeUTF8
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig, _encoding)
except AttributeError:
    def _translate(context, text, disambig):
        return QtGui.QApplication.translate(context, text, disambig)

class Ui_MainTable(QtGui.QWidget):
    def setupUi(self, Table):
        Table.setObjectName(_fromUtf8("Table"))
        Table.resize(422, 196)
        self.centralwidget = QtGui.QWidget(Table)
        self.centralwidget.setObjectName(_fromUtf8("centralwidget"))
        self.tableWidget = QtGui.QTableWidget(self.centralwidget)
        self.tableWidget.setGeometry(QtCore.QRect(0, 0, 421, 171))
        self.tableWidget.setObjectName(_fromUtf8("tableWidget"))
        self.tableWidget.setColumnCount(4)
        self.tableWidget.setRowCount(4)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(0, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(1, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(2, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setVerticalHeaderItem(3, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(0, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(1, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(2, item)
        item = QtGui.QTableWidgetItem()
        self.tableWidget.setHorizontalHeaderItem(3, item)
        Table.setCentralWidget(self.centralwidget)
        self.menubar = QtGui.QMenuBar(Table)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 422, 23))
        self.menubar.setObjectName(_fromUtf8("menubar"))
        Table.setMenuBar(self.menubar)
        self.statusbar = QtGui.QStatusBar(Table)
        self.statusbar.setObjectName(_fromUtf8("statusbar"))
        Table.setStatusBar(self.statusbar)

        self.retranslateUi(Table)
        QtCore.QMetaObject.connectSlotsByName(Table)

    def retranslateUi(self, Table):
        Table.setWindowTitle(_translate("Table", "Table", None))
        item = self.tableWidget.verticalHeaderItem(0)
        item.setText(_translate("Table", "1", None))
        item = self.tableWidget.verticalHeaderItem(1)
        item.setText(_translate("Table", "2", None))
        item = self.tableWidget.verticalHeaderItem(2)
        item.setText(_translate("Table", "3", None))
        item = self.tableWidget.verticalHeaderItem(3)
        item.setText(_translate("Table", "4", None))
        item = self.tableWidget.horizontalHeaderItem(0)
        item.setText(_translate("Table", "新建列", None))
        item = self.tableWidget.horizontalHeaderItem(1)
        item.setText(_translate("Table", "新建列", None))
        item = self.tableWidget.horizontalHeaderItem(2)
        item.setText(_translate("Table", "新建列", None))
        item = self.tableWidget.horizontalHeaderItem(3)
        item.setText(_translate("Table", "新建列", None))

Dies ist das Hauptprogramm

from ui_question import Ui_MainWindow
from PyQt4 import QtGui
from PyQt4.QtCore import QCoreApplication
from PyQt4.QtCore import * 
import os,sys,subprocess,re
from ui_qtable import Ui_MainTable

class myui(QtGui.QMainWindow,Ui_MainWindow,Ui_MainTable):

    def __init__(self, MainWindow):
#        QtGui.QMainWindow.__init__(self)
        super(my2d,self).__init__()
        self.setupUi(MainWindow)

        self.pushButton.clicked.connect(self.createMaterialFunc)

    def createMaterialFunc(self):
        print 'OK'
        self.another = Ui_MainTable()
        self.another.show() 


    
        
if __name__ ==  "__main__":
    import sys
    app = QtGui.QApplication(sys.argv)
    MainWindow = QtGui.QMainWindow()
    ui = myui(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())                                    

Die Laufergebnisse sind wie folgt:


Vielen Dank euch allen! ! Tut mir leid, dass ich alle störe! !

Answer 1

主程序line 17的createMaterialFunc()函数，改为如下：

    def createMaterialFunc(self):
        self.another = Ui_MainTable()
        self.table = QtGui.QMainWindow()
        self.another.setupUi(self.table)
        self.table.show()

运行结果：