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_()