不明白为什么我要从文本字段中获取空字符串,这是我的代码:
class MyMainWindow(QMainWindow, test.Ui_MainWindow):
def __init__(self):
super().__init__()
super().setupUi(self)
self.pushButton.clicked.connect(self.click)
def click(self):
text = self.plainTextEdit.toPlainText()
print('Text: ' + str(text))
print()
if __name__ == '__main__':
app = QApplication(sys.argv)
window = QMainWindow()
mainWindow = MyMainWindow()
mainWindow.setupUi(window)
mainWindow.show()
sys.exit(app.exec_())
以及QT Designer生成的.py文件:
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.setObjectName("MainWindow")
MainWindow.resize(800, 600)
self.centralwidget = QtWidgets.QWidget(MainWindow)
self.centralwidget.setObjectName("centralwidget")
self.plainTextEdit = QtWidgets.QPlainTextEdit(self.centralwidget)
self.plainTextEdit.setGeometry(QtCore.QRect(270, 260, 104, 71))
self.plainTextEdit.setObjectName("plainTextEdit")
self.pushButton = QtWidgets.QPushButton(self.centralwidget)
self.pushButton.setGeometry(QtCore.QRect(270, 350, 75, 23))
self.pushButton.setObjectName("pushButton")
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtWidgets.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 21))
self.menubar.setObjectName("menubar")
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtWidgets.QStatusBar(MainWindow)
self.statusbar.setObjectName("statusbar")
MainWindow.setStatusBar(self.statusbar)
self.retranslateUi(MainWindow)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
def retranslateUi(self, MainWindow):
_translate = QtCore.QCoreApplication.translate
MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
self.pushButton.setText(_translate("MainWindow", "PushButton"))
当我点击按钮时,它会打印Empy字符串
这是获取>>> Screenshot
将非常感谢您的帮助
答案 0 :(得分:0)
问题在两次调用setupUI()方法中:
if __name__ == '__main__':
app = QApplication(sys.argv)
window = QMainWindow()
mainWindow = MyMainWindow()
# mainWindow.setupUi(window) <<< HERE WAS THE PROBLEM, JUST DELETEd THIS LINE AND THATS ALL
mainWindow.show()
sys.exit(app.exec_())
也许有人会有同样的问题