与 PyQt 的基本小部件交互

发布于 2024-09-27 05:54:27 字数 771 浏览 3 评论 0原文

请有人告诉我我在调用 pwTxt.text 方面做错了什么。

#!/usr/bin/python
import sys
from PyQt4 import QtCore, QtGui

from mainwindow import Ui_MainWindow


class MyForm(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

    def on_pwExtract_pressed(self):
        print self.pwTxt.text

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp = MyForm()
    myapp.show()
    sys.exit(app.exec_())

print self.pwTxt.text 行失败，因为它找不到小部件，pwTxt 是在主窗口上定义的 QLineEdit。我刚刚在 QTDesigner 中制作并使用 pyuic4 生成了 python 代码。

如何正确引用同一窗口上的其他小部件，在本例中，我只想在按下 QPushButton pwExtract 时从名为 pwTxt 的 QLineEdit 获取文本。

多谢。

原文

Please can someone tell me what im doing wrong here with respect to calling pwTxt.text.

#!/usr/bin/python
import sys
from PyQt4 import QtCore, QtGui

from mainwindow import Ui_MainWindow


class MyForm(QtGui.QMainWindow):
    def __init__(self, parent=None):
        QtGui.QWidget.__init__(self, parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

    def on_pwExtract_pressed(self):
        print self.pwTxt.text

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    myapp = MyForm()
    myapp.show()
    sys.exit(app.exec_())

The line print self.pwTxt.text fails because it can't find the widget, pwTxt is a QLineEdit defined on the main window. I just made it in QTDesigner and generated python code with pyuic4.

How do I correctly reference other widgets on the same window, in this case I just want to get the text from a QLineEdit named pwTxt when the QPushButton pwExtract is pressed.

Thanks a lot.

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