PyQT5之使用QT Designer创建基本窗口方式

环境配置

• pip install pyqt5 （安装pyQT5库）：pyuic5包含在内
• pip install pyqt5-tools （安装QT-Designer）

使用QT Designer布局窗体

UI文件的编译

将.UI文件编译为.PY文件(CMD命令行中)：

pyuic5 xxx.ui -o xxx.py  

#不可以存在中文！

打开编译后的.py文件，新建SLOT()函数并修改连接函数：

在末尾添加运行代码：

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

编译后的.PY源码

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

# Form implementation generated from reading ui file 'C:\Users\Geclipse\Desktop\untitled.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, QtWidgets

class Ui_MainWindow(object):
  def setupUi(self, MainWindow):
      MainWindow.setObjectName("MainWindow")
      MainWindow.resize(800, 600)
      MainWindow.setMouseTracking(False)
      MainWindow.setWindowOpacity(1.0)
      self.centralwidget = QtWidgets.QWidget(MainWindow)
      self.centralwidget.setObjectName("centralwidget")
      self.label = QtWidgets.QLabel(self.centralwidget)
      self.label.setGeometry(QtCore.QRect(300, 0, 161, 71))
      font = QtGui.QFont()
      font.setPointSize(12)
      font.setBold(True)
      font.setItalic(False)
      font.setUnderline(False)
      font.setWeight(75)
      font.setStrikeOut(False)
      self.label.setFont(font)
      self.label.setObjectName("label")
      self.textEdit = QtWidgets.QTextEdit(self.centralwidget)
      self.textEdit.setGeometry(QtCore.QRect(20, 220, 751, 321))
      self.textEdit.setObjectName("textEdit")
      self.pushButton = QtWidgets.QPushButton(self.centralwidget)
      self.pushButton.setGeometry(QtCore.QRect(300, 90, 141, 61))
      font = QtGui.QFont()
      font.setPointSize(12)
      font.setBold(True)
      font.setWeight(75)
      self.pushButton.setFont(font)
      self.pushButton.setObjectName("pushButton")
      MainWindow.setCentralWidget(self.centralwidget)
      self.menubar = QtWidgets.QMenuBar(MainWindow)
      self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 26))
      self.menubar.setObjectName("menubar")
      self.menu_1 = QtWidgets.QMenu(self.menubar)
      self.menu_1.setObjectName("menu_1")
      self.menu_2 = QtWidgets.QMenu(self.menubar)
      self.menu_2.setObjectName("menu_2")
      MainWindow.setMenuBar(self.menubar)
      self.statusbar = QtWidgets.QStatusBar(MainWindow)
      self.statusbar.setObjectName("statusbar")
      MainWindow.setStatusBar(self.statusbar)
      self.actionFunction1 = QtWidgets.QAction(MainWindow)
      self.actionFunction1.setObjectName("actionFunction1")
      self.actionFunction2 = QtWidgets.QAction(MainWindow)
      self.actionFunction2.setObjectName("actionFunction2")
      self.actionExit = QtWidgets.QAction(MainWindow)
      self.actionExit.setObjectName("actionExit")
      self.actionExit_2 = QtWidgets.QAction(MainWindow)
      self.actionExit_2.setObjectName("actionExit_2")
      self.menu_1.addAction(self.actionFunction1)
      self.menu_1.addAction(self.actionFunction2)
      self.menu_1.addSeparator()
      self.menu_1.addAction(self.actionExit_2)
      self.menubar.addAction(self.menu_1.menuAction())
      self.menubar.addAction(self.menu_2.menuAction())
      self.textEdit.setText("pyuic untitled.ui -o untitled.py")

      self.retranslateUi(MainWindow)
      self.pushButton.clicked.connect(self.add_hello_qt)
      QtCore.QMetaObject.connectSlotsByName(MainWindow)
      
  def add_hello_qt(self):
      self.textEdit.setText("Hello QT!")

#★★★ def retranslateUi(eslf,MainWindow)
#translate翻译
#retranslate重译（对界面中控件所进行的其他调整：如设置标题会出现在这里）
  def retranslateUi(self, MainWindow):
      _translate = QtCore.QCoreApplication.translate
      MainWindow.setWindowTitle(_translate("MainWindow", "This is a simple title"))
      self.label.setText(_translate("MainWindow", "Simple Widget"))
      self.pushButton.setStatusTip(_translate("MainWindow", "click this will add ‘hello QT' in below area"))
      self.pushButton.setText(_translate("MainWindow", "Hello QT"))
      self.menu_1.setTitle(_translate("MainWindow", "菜单栏1"))
      self.menu_2.setTitle(_translate("MainWindow", "菜单栏2"))
      self.actionFunction1.setText(_translate("MainWindow", "Function1"))
      self.actionFunction2.setText(_translate("MainWindow", "Function2"))
      self.actionExit.setText(_translate("MainWindow", "Exit"))
      self.actionExit_2.setText(_translate("MainWindow", "Exit"))



#下面的这些部分需要手动打开py文件进行添加
if __name__ == "__main__":    
	import sys    
	app = QtWidgets.QApplication(sys.argv)    
	MainWindow = QtWidgets.QMainWindow()    
	ui = Ui_MainWindow()    
	ui.setupUi(MainWindow)    
	MainWindow.show()    
	sys.exit(app.exec_())

运行结果

总结

以上为个人经验，希望能给大家一个参考，也希望大家多多支持服务器之家。

原文链接：https://kylee.blog.csdn.net/article/details/90549897