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add p_38
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‎LICENSE

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‎README.md

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# PyQt5基础教程(持续更新中。。。)
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* p38_多窗口 [源码下载](p38_多窗口) [博文地址](https://xugaoxiang.com/2023/02/02/pyqt5-38-multiwindow/)
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* p37_大图片放大缩小 [源码下载](p37_大图片放大缩小) [博文地址](https://xugaoxiang.com/2022/12/06/pyqt5-37-image-zoom/)
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* p36_`QLabel` 滚动条 [源码下载](p36_QLabel滚动条) [博文地址](https://xugaoxiang.com/2022/12/04/pyqt5-36-make-label-scrollable/)

‎p38_多窗口/main_window.py

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import sys
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from PyQt5.QtWidgets import QMainWindow, QApplication
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from ui_mainwindow import Ui_MainWindow
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from second_window import SecondWindow
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class MainWindow(QMainWindow, Ui_MainWindow):
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def __init__(self, parent=None):
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super(MainWindow, self).__init__(parent)
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self.setupUi(self)
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self.pushButton.clicked.connect(self.showSecondWindow)
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def showSecondWindow(self):
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self.secWin = SecondWindow("Hello SecondWindow.")
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self.secWin.show()
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if __name__ == '__main__':
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app = QApplication(sys.argv)
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windows = MainWindow()
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windows.show()
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sys.exit(app.exec_())

‎p38_多窗口/mainwindow.ui

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>600</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>多窗口示例</string>
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</property>
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<widget class="QWidget" name="centralwidget">
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<widget class="QPushButton" name="pushButton">
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<property name="geometry">
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<rect>
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<x>310</x>
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<y>210</y>
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<width>171</width>
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<height>91</height>
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</rect>
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</property>
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<property name="font">
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<font>
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<pointsize>12</pointsize>
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</font>
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</property>
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<property name="text">
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<string>开启第二个窗口</string>
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</property>
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</widget>
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</widget>
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<widget class="QMenuBar" name="menubar">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>26</height>
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</rect>
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</property>
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</widget>
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<widget class="QStatusBar" name="statusbar"/>
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</widget>
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<resources/>
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<connections/>
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</ui>

‎p38_多窗口/second_window.py

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from PyQt5.QtWidgets import QMainWindow
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from ui_secondwindow import Ui_MainWindow
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class SecondWindow(QMainWindow, Ui_MainWindow):
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def __init__(self, param, parent=None):
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super(SecondWindow, self).__init__(parent)
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self.setupUi(self)
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print("从主窗口传递过来的字符是：{}".format(param))
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self.label.setText(param)

‎p38_多窗口/secondwindow.ui

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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>600</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>第二个窗口</string>
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</property>
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<widget class="QWidget" name="centralwidget">
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<widget class="QLabel" name="label">
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<property name="geometry">
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<rect>
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<x>170</x>
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<y>190</y>
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<width>501</width>
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<height>91</height>
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</rect>
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</property>
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<property name="font">
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<font>
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<pointsize>14</pointsize>
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</font>
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</property>
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<property name="text">
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<string>欢迎访问我的博客，https://xugaoxiang.com</string>
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</property>
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</widget>
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</widget>
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<widget class="QMenuBar" name="menubar">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>800</width>
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<height>26</height>
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</rect>
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</property>
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</widget>
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<widget class="QStatusBar" name="statusbar"/>
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</widget>
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<resources/>
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<connections/>
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</ui>

‎p38_多窗口/ui_mainwindow.py

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# -*- coding: utf-8 -*-
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# Form implementation generated from reading ui file '.\mainwindow.ui'
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#
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# Created by: PyQt5 UI code generator 5.9.2
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#
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# WARNING! All changes made in this file will be lost!
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from PyQt5 import QtCore, QtGui, QtWidgets
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class Ui_MainWindow(object):
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def setupUi(self, MainWindow):
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MainWindow.setObjectName("MainWindow")
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MainWindow.resize(800, 600)
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self.centralwidget = QtWidgets.QWidget(MainWindow)
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self.centralwidget.setObjectName("centralwidget")
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self.pushButton = QtWidgets.QPushButton(self.centralwidget)
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self.pushButton.setGeometry(QtCore.QRect(310, 210, 171, 91))
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font = QtGui.QFont()
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font.setPointSize(12)
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self.pushButton.setFont(font)
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self.pushButton.setObjectName("pushButton")
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MainWindow.setCentralWidget(self.centralwidget)
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self.menubar = QtWidgets.QMenuBar(MainWindow)
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self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
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self.menubar.setObjectName("menubar")
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MainWindow.setMenuBar(self.menubar)
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self.statusbar = QtWidgets.QStatusBar(MainWindow)
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self.statusbar.setObjectName("statusbar")
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MainWindow.setStatusBar(self.statusbar)
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self.retranslateUi(MainWindow)
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QtCore.QMetaObject.connectSlotsByName(MainWindow)
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def retranslateUi(self, MainWindow):
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_translate = QtCore.QCoreApplication.translate
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MainWindow.setWindowTitle(_translate("MainWindow", "多窗口示例"))
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self.pushButton.setText(_translate("MainWindow", "开启第二个窗口"))
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‎p38_多窗口/ui_secondwindow.py

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# -*- coding: utf-8 -*-
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# Form implementation generated from reading ui file '.\secondwindow.ui'
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#
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# Created by: PyQt5 UI code generator 5.9.2
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#
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# WARNING! All changes made in this file will be lost!
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from PyQt5 import QtCore, QtGui, QtWidgets
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class Ui_MainWindow(object):
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def setupUi(self, MainWindow):
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MainWindow.setObjectName("MainWindow")
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MainWindow.resize(800, 600)
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self.centralwidget = QtWidgets.QWidget(MainWindow)
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self.centralwidget.setObjectName("centralwidget")
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self.label = QtWidgets.QLabel(self.centralwidget)
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self.label.setGeometry(QtCore.QRect(170, 190, 501, 91))
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font = QtGui.QFont()
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font.setPointSize(14)
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self.label.setFont(font)
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self.label.setObjectName("label")
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MainWindow.setCentralWidget(self.centralwidget)
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self.menubar = QtWidgets.QMenuBar(MainWindow)
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self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
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self.menubar.setObjectName("menubar")
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MainWindow.setMenuBar(self.menubar)
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self.statusbar = QtWidgets.QStatusBar(MainWindow)
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self.statusbar.setObjectName("statusbar")
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MainWindow.setStatusBar(self.statusbar)
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self.retranslateUi(MainWindow)
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QtCore.QMetaObject.connectSlotsByName(MainWindow)
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def retranslateUi(self, MainWindow):
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_translate = QtCore.QCoreApplication.translate
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MainWindow.setWindowTitle(_translate("MainWindow", "第二个窗口"))
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self.label.setText(_translate("MainWindow", "欢迎访问我的博客，https://xugaoxiang.com"))
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