pyQt 每日一练习 -- 登录框

#coding=utf-8#第一个练习，登录框import sys
from PyQt4 import QtGui,QtCore#登录框
class LoginBox(QtGui.QWidget):def __init__(self):super(LoginBox, self).__init__()self.initUI()def initUI(self):vBoxLayout = QtGui.QVBoxLayout()hBoxLayout_1 = QtGui.QHBoxLayout()nameLabel = QtGui.QLabel(u"姓名：", self)self.nameInputEdit = QtGui.QLineEdit(self)self.nameInputEdit.textChanged.connect(self.inputName)hBoxLayout_1.addWidget(nameLabel)hBoxLayout_1.addWidget(self.nameInputEdit)vBoxLayout.addLayout(hBoxLayout_1)hBoxLayout_2 = QtGui.QHBoxLayout()passwordLabel = QtGui.QLabel(u"密码：", self)self.passwordInputEdit = QtGui.QLineEdit(self)self.passwordInputEdit.textChanged.connect(self.inputPassword)hBoxLayout_2.addWidget(passwordLabel)hBoxLayout_2.addWidget(self.passwordInputEdit)vBoxLayout.addLayout(hBoxLayout_2)hBoxLayout_3 = QtGui.QHBoxLayout()okBtn = QtGui.QPushButton(u"确定", self)cancleBtn = QtGui.QPushButton(u"取消", self)okBtn.clicked.connect(self.clickOkBtn)cancleBtn.clicked.connect(self.clickCancleBtn)hBoxLayout_3.addWidget(okBtn)hBoxLayout_3.addWidget(cancleBtn)vBoxLayout.addLayout(hBoxLayout_3)self.setLayout(vBoxLayout)self.setWindowIcon(QtGui.QIcon("icon.png"))self.setWindowTitle(u"登录框")self.resize(300, 150)self.setCenterPos()def inputName(self, text):self.name = textprint "input name is " + str(self.name)def inputPassword(self, text):self.password = textprint "input password " + str(self.password)def clickOkBtn(self):sender = self.sender()print unicode(sender.text()) + " be clicked"info = u"姓名：" + str(self.name) + u" 密码：" + str(self.password)reply = QtGui.QMessageBox.question(self, u"提示", info, QtGui.QMessageBox.Yes, QtGui.QMessageBox.No)if reply == QtGui.QMessageBox.Yes:print "right!"else:self.nameInputEdit.setText("")self.passwordInputEdit.setText("")def clickCancleBtn(self):sender = self.sender()print unicode(sender.text()) + " be clicked"self.close()def setCenterPos(self):screen = QtGui.QDesktopWidget().screenGeometry()selfSize = self.size()self.move((screen.width() - selfSize.width())/2, (screen.height() - selfSize.height())/2)def main():app = QtGui.QApplication(sys.argv)lb = LoginBox()lb.show()sys.exit(app.exec_())if __name__ == "__main__":main()