pyqt练习x6.1在中间

# -*- coding: cp936 -*-

import sys

from PyQt4 import QtGui

class Center(QtGui.QWidget):

def __init__(self,parent=None):

QtGui.QWidget.__init__(self,parent)

self.setWindowTitle(u‘在中间‘)

self.resize(250,150)

self.center()

def center(self):

screen=QtGui.QDesktopWidget().screenGeometry()

size=self.geometry()

self.move((screen.width()-size.width())/2,

(screen.height()-size.height())/2)

app=QtGui.QApplication(sys.argv)

qb=Center()

qb.show()

sys.exit(app.exec_())

IMG