• Author: Notus(hehe_xiao@qq.com)
• Create: 2019-02-10
• Update: 2019-02-12

PyQt5 实现显示和业务逻辑分离, 继承主界面文件的主窗口类

环境

操作系统: Windows 10 专业版 64-bit (10.0, Build 16299) (16299.rs3_release.170928-1534)
Python Version: 3.7.1
PyQt5 Version: 5.11.3
Qt Designer Version: 5.11.2

界面代码如下(firstMainWin.py)

# -*- coding: utf-8 -*-# Form implementation generated from reading ui file 'firstMainWin.ui'
#
# Created by: PyQt5 UI code generator 5.11.3
#
# WARNING! All changes made in this file will be lost!from PyQt5 import QtCore, QtGui, QtWidgetsclass Ui_MainWindow(object):def setupUi(self, MainWindow):MainWindow.setObjectName("MainWindow")MainWindow.resize(800, 600)self.centralwidget = QtWidgets.QWidget(MainWindow)self.centralwidget.setObjectName("centralwidget")self.pushButton = QtWidgets.QPushButton(self.centralwidget)self.pushButton.setGeometry(QtCore.QRect(220, 160, 141, 51))self.pushButton.setObjectName("pushButton")MainWindow.setCentralWidget(self.centralwidget)self.menubar = QtWidgets.QMenuBar(MainWindow)self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))self.menubar.setObjectName("menubar")MainWindow.setMenuBar(self.menubar)self.statusbar = QtWidgets.QStatusBar(MainWindow)self.statusbar.setObjectName("statusbar")MainWindow.setStatusBar(self.statusbar)self.retranslateUi(MainWindow)QtCore.QMetaObject.connectSlotsByName(MainWindow)def retranslateUi(self, MainWindow):_translate = QtCore.QCoreApplication.translateMainWindow.setWindowTitle(_translate("MainWindow", "haha"))self.pushButton.setText(_translate("MainWindow", "PushPush"))

主要逻辑代码如下

'''PyQt5 实现显示和业务逻辑分离, 继承主界面文件的主窗口类@Author: Notus(hehe_xiao@qq.com)@Create: 2019-02-10@Update: 2019-02-10
'''import sys
from PyQt5.QtWidgets import QApplication, QMainWindow
from firstMainWin import *class MyMainWindow(QMainWindow, Ui_MainWindow):def __init__(self, parent=None):super(MyMainWindow, self).__init__(parent)self.setupUi(self)if __name__ == "__main__":app = QApplication(sys.argv)myWin = MyMainWindow()myWin.show()sys.exit(app.exec_())

运行后显示效果如下图