# -*- coding: utf-8 -*- import sys from PyQt4 import QtCore, QtGui class MyWindow(QtGui.QWidget):     def __init__(self, parent=None):         QtGui.QWidget.__init__(self,parent )         self.setWindowTitle("weather")         self.resize(1000, 200)         girdLayout = QtGui.QGridLayout()         #标签         str ="weather"         label1 = QtGui.QLabel(str)         girdLayout.addWidget( label1, 0, 0)         #按钮         button1 = QtGui.QPushButton('button1')         girdLayout.addWidget ( button1 , 0, 1)         #文本条         textFile = QtGui.QLineEdit()         girdLayout.addWidget( textFile, 0, 2 )         #密码条         passwordFile = QtGui.QLineEdit()         passwordFile.setEchoMode( QtGui.QLineEdit.Password )         girdLayout.addWidget( passwordFile, 1, 2)         #编辑框         textArea = QtGui.QTextEdit()         girdLayout.addWidget(textArea , 2, 2 )         #单选框&复选框         self.radio1 = QtGui.QRadioButton('radio1')         self.radio2 = QtGui.QRadioButton('radio2')         self.radio3 = QtGui.QRadioButton('radio3')         girdLayout.addWidget( self.radio1 , 3 ,0)         girdLayout.addWidget( self.radio2 , 3 ,1)         girdLayout.addWidget( self.radio3 , 3 ,2)         checkbox1 = QtGui.QCheckBox('checkbox1')         checkbox2 = QtGui.QCheckBox('checkbox2')         checkbox3 = QtGui.QCheckBox('checkbox2')         girdLayout.addWidget( checkbox1 , 4, 0)         girdLayout.addWidget( checkbox2 , 4, 1)         girdLayout.addWidget( checkbox3 , 4, 2)         self.button = QtGui.QPushButton('ok')         girdLayout.addWidget( self.button, 5 , 0)         self.connect(self.button ,QtCore.SIGNAL('clicked()'),self.OnButton )         self.setLayout( girdLayout)      def OnButton(self ):             if self.radio2.isChecked():                 self.radio2.setText('haha')         app = QtGui.QApplication( sys.argv ) mywindow = MyWindow() mywindow.show() app.exec_()