PyQt5 QWidget 内部再调用QWidget无法显示

[齐风]

我想实现一个mainWidget调用一个子项widgetModel，让他在mainWidget显示出来，但是我发现调用以后mainWidget并没有把​widgetModel的内容显示出来，不太清除原因，请各位大神指点一二，下面是源码：

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

# Form implementation generated from reading ui file 'D:\project\PythonPro\QtUi\CreateUi\mainwidget.ui'
#
# Created by: PyQt5 UI code generator 5.5.1
#
# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWidget(object):
    def setupUi(self, MainWidget):
        MainWidget.setObjectName("MainWidget")
        MainWidget.resize(400, 300)

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

    def retranslateUi(self, MainWidget):
        _translate = QtCore.QCoreApplication.translate
        MainWidget.setWindowTitle(_translate("MainWidget", "基础模块用例"))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWidget = QtWidgets.QWidget()
    ui = Ui_MainWidget()
    ui.setupUi(MainWidget)
    MainWidget.show()
    sys.exit(app.exec_())

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

# Form implementation generated from reading ui file 'D:\project\py\change\widgetmodel.ui'
#
# Created by: PyQt5 UI code generator 5.5.1
#
# WARNING! All changes made in this file will be lost!

from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_WidgetModel(QtWidgets.QWidget): # object,
    def __init__(self, label_name = "label", button_name = "button"):
        super(Ui_WidgetModel, self).__init__()
        self.label_name = label_name
        self.button_name = button_name
    def setupUi(self, WidgetModel):
        WidgetModel.setObjectName("WidgetModel")
        WidgetModel.resize(400, 115)
        self.label = QtWidgets.QLabel(WidgetModel)
        self.label.setGeometry(QtCore.QRect(30, 40, 81, 31))
        font = QtGui.QFont()
        font.setFamily("微软雅黑")
        font.setPointSize(12)
        self.label.setFont(font)
        self.label.setObjectName(self.label_name)
        self.pushButton = QtWidgets.QPushButton(WidgetModel)
        self.pushButton.setGeometry(QtCore.QRect(270, 40, 101, 31))
        font = QtGui.QFont()
        font.setFamily("微软雅黑")
        font.setPointSize(12)
        self.pushButton.setFont(font)
        self.pushButton.setObjectName(self.button_name)
        self.textEdit = QtWidgets.QTextEdit(WidgetModel)
        self.textEdit.setGeometry(QtCore.QRect(130, 40, 104, 31))
        font = QtGui.QFont()
        font.setFamily("微软雅黑")
        font.setPointSize(12)
        self.textEdit.setFont(font)
        self.textEdit.setObjectName("textEdit")

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

    def retranslateUi(self, WidgetModel):
        _translate = QtCore.QCoreApplication.translate
        WidgetModel.setWindowTitle(_translate("WidgetModel", "Form"))
        self.label.setText(_translate("WidgetModel", self.label_name))
        self.pushButton.setText(_translate("WidgetModel", self.button_name))


if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    WidgetModel = QtWidgets.QWidget()
    ui = Ui_WidgetModel("label", "button")
    ui.setupUi(WidgetModel)
    WidgetModel.show()
    sys.exit(app.exec_())


下面是main.py
import sys
from PyQt5 import QtCore
from PyQt5.QtWidgets import QWidget, QApplication, QGridLayout, QVBoxLayout, QLabel, QLineEdit
from QtUi.Ui_mainwidget import Ui_MainWidget
from QtUi.Ui_widgetmodel import Ui_WidgetModel


class MainWidget(Ui_MainWidget, QWidget):
    def __init__(self):
        super(MainWidget, self).__init__()
        self.setupUi(self)
        # 一些信号槽
        self.model1 = Ui_WidgetModel()
        # self.model2 = Ui_WidgetModel("测试", "确定")
        self.model1.show()
        self.usr = QLabel("用户：", self)
        layout = QGridLayout(self)
        layout.addWidget(self.model1)
        layout.addWidget(self.usr)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    mainshow = MainWidget()
    mainshow.show()
    sys.exit(app.exec_())

以上源码可以直接运行，我单独对mainwidget和widgetModel测试是可以的，但是main.py显示结果为：

​​​

用户的上面是我添加的widget，只是暂用了空间，并没有显示出内容，请各位指点迷津，谢谢！

[lxx1991abc]

楼主，你的这个问题解决了吗？

[齐风]

未初始化界面导致： main修改下 widget_model1 = QWidget() self.model1.setupUi(widget_model1) mainlayout.addWidget(widget_model1)即可