我正在尝试制作一个简单的PyQT4应用程序,该应用程序可以让我在单个消息框中显示来自两个文本框的文本。这很简单,所以我确定我缺少一些很小的东西。
谢谢你的帮助。
import sys
from PyQt4 import QtGui, QtCore
class myWindow(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
#The setGeometry method is used to position the control.
#Order: X, Y position - Width, Height of control.
self.resize(500,350)
self.center()
self.setWindowTitle("Sergio's QT Application.")
self.setWindowIcon(QtGui.QIcon('menuScreenFolderShadow.png'))
self.setToolTip('<i>Welcome</i> to the <b>first</b> app ever!')
QtGui.QToolTip.setFont(QtGui.QFont('Helvetica', 12))
txtFirstName = QtGui.QLineEdit('', self)
txtFirstName.setGeometry(35, 35, 150, 20)
txtLastName = QtGui.QLineEdit('', self)
txtLastName.setGeometry(35, 60, 150, 20)
btnSubmit = QtGui.QPushButton('Say hello.', self)
btnSubmit.setGeometry(340, 250, 150, 35)
self.connect(btnSubmit, QtCore.SIGNAL("clicked()"), self.clicked)
btnQuit = QtGui.QPushButton('Exit Application', self)
btnQuit.setGeometry(340, 300, 150, 35)
self.connect(btnQuit, QtCore.SIGNAL('clicked()'),
QtGui.qApp, QtCore.SLOT('quit()'))
def clicked(self):
QtGui.QMessageBox.about(self, "Just dropped by to say hi!", "Welcome to this tutorial %s %s!" % (
self.txtFirstName.text(), self.txtLastName.text()))
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)
mainForm = myWindow()
mainForm.show()
sys.exit(app.exec_())
这是我收到的错误消息:
追溯(最近一次通话):
文件
“ C:\ Users \ Sergio.Tapia \ Documents \ NetBeansProjects \ PyQTTests \ src \ pyqttests.py”,
第36行,点击了
self.txtFirstName.text(),self.txtLastName.text()))
AttributeError:“ myWindow”对象具有
没有属性“ txtFirstName”
最佳答案
问题出在__init__
,其中创建了txtLastName
。它不是作为类成员创建的,而是作为__init__
方法内部的局部变量创建的。要使其成为类成员,您可以稍后使用self.
进行引用:
self.txtFirstName = QtGui.QLineEdit('', self)
self.txtFirstName.setGeometry(35, 35, 150, 20)
self.txtLastName = QtGui.QLineEdit('', self)
self.txtLastName.setGeometry(35, 60, 150, 20)
关于python - AttributeError:“myWindow”对象没有属性“txtFirstName”,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/4155559/