建立了一个MainWindow，创建最基本的菜单栏、状态栏、工具栏，并重新定义了“X”关闭的默认行为。
# -*- coding: utf-8 -*- import sys from PyQt4 import QtGui from PyQt4 import QtCore class Icon(QtGui.QMainWindow): def __init__(self, parent=None): super(Icon, self).__init__(parent) # MenuBar menubar = self.menuBar() file = menubar.addMenu('文件') fileopen = file.addAction('打开') fileopen.setStatusTip('打开文件') filexit = file.addAction('退出') filexit.setShortcut('Ctrl+Q') self.connect(filexit, QtCore.SIGNAL('triggered()'), self.exit) self.setMenuBar(menubar) # ToolBar editToolbar = self.addToolBar('设置') newTool = editToolbar.addAction(QtGui.QIcon('new.png'), '新建') saveTool = editToolbar.addAction(QtGui.QIcon('save.png'), '保存') self.connect(saveTool, QtCore.SIGNAL('triggered()'), self.save) exit = QtGui.QPushButton('Exit', self) exit.setGeometry(30, 100, 50, 30) exit.setToolTip('点击按钮关闭窗口') self.connect(exit, QtCore.SIGNAL('clicked()'), self.exit) # 设置窗口大小已经位置 self.resize(350, 250) self.center() self.statusBar().showMessage('准备就绪') self.setWindowIcon(QtGui.QIcon('logo.png')) self.setWindowTitle('PyQt4 Demo') def closeEvent(self, event): replay = QtGui.QMessageBox.question( self, '温馨提示', '是否确定关闭窗口', QtGui.QMessageBox.Yes, QtGui.QMessageBox.No) if replay == QtGui.QMessageBox.Yes: event.accept() else: event.ignore() def save(self): replay = QtGui.QMessageBox.question( self, '温馨提示', '是否进行保存', QtGui.QMessageBox.Yes, QtGui.QMessageBox.No) def exit(self): sys.exit(0) def center(self): screenGeometry = QtGui.QDesktopWidget().screenGeometry() size = self.geometry() self.move((screenGeometry.width() - size.width()) / 2, (screenGeometry.height() - size.height()) / 2) if __name__ == '__main__': app = QtGui.QApplication(sys.argv) icon = Icon() icon.show() app.exec_()
转载于:https://www.cnblogs.com/lkpp/p/7400049.html
相关资源：PyQt4中文教程chm版