pyqt4教程之实现windows窗口小示例分享

复制代码 代码如下:

import sys
from PyQt4 import QtGui, QtCore
class Window( QtGui.QMainWindow):
def init(self):
QtGui.QMainWindow.init(self)
self.setWindowTitle('hello')
self.resize(800,500)

    menubar = self.menuBar()  
    self.file = menubar.addMenu('&file;')  
    open = self.file.addAction('open')  
    self.connect(open,QtCore.SIGNAL('triggered()'),self.OnOpen)

    save =self.file.addAction('save')  
    self.connect(save,QtCore.SIGNAL('triggered()'),self.OnSave)  
    self.file.addSeparator()  
    close = self.file.addAction('close')  
    self.connect(close,QtCore.SIGNAL('triggered()'),self.OnClose)

    self.label = QtGui.QLabel('this is a google text')  
    self.label.setAlignment(QtCore.Qt.AlignCenter)  
    self.setCentralWidget(self.label)

def OnOpen(self):  
    self.label.setText('open')  
def OnClose(self):  
    self.close()  
def OnSave( self):  
    self.label.setText('save')  
def contextMenuEvent(self,event):  
    self.file.exec_( event.globalPos())

app =QtGui.QApplication(sys.argv)
win = Window()
win.show()
app.exec_()