主页 / 问题 / 1367931
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aqua
Asked:2022-06-02 23:55:40 +0000 UTC2022-06-02 23:55:40 +0000 UTC

根据 QComboBox 中的项目选择和单击按钮更改 QLabel 的值

  • 772

我希望当我们comboBox选择时ТЕКСТ 1，窗口会显示ТЕКСТ 1 1，
按下按钮2文本将变为ТЕКСТ 1 2，
按下按钮1文本将变为ТЕКСТ 1 1。

当我们comboBox选择inТЕКСТ 2时，窗口会显示ТЕКСТ 2 3，
按一下按钮4文字会变成ТЕКСТ 2 4，
按一下按钮3文字会变成ТЕКСТ 2 3

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from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Window1(object):
    def setupUi(self, Window1):
        Window1.resize(800, 450)
        self.Main1 = QtWidgets.QWidget(Window1)
  
        self.comboBox = QtWidgets.QComboBox(self.Main1)
        self.comboBox.setGeometry(QtCore.QRect(693, 0, 91, 22))
        self.comboBox.addItem('ТЕКСТ 1')
        self.comboBox.addItem('ТЕКСТ 2')

        self.comboBox.activated[str].connect(self.change_science)

        self.item = {'ТЕКСТ 1' : self.item_one(), 'ТЕКСТ 2' : self.item_two()}
        self.science_now = str(self.comboBox.currentText())
        self.change_science(self.science_now)

        Window1.setCentralWidget(self.Main1)
        QtCore.QMetaObject.connectSlotsByName(Window1)


    def change_science(self, text):
        for i in self.item.get(self.science_now):
            i.setHidden(True)
        for i in self.item.get(text):
            i.setHidden(False)

        self.science_now = text

    def item_one(self):
        self.label = QtWidgets.QLabel(self.Main1)
        self.label.setGeometry(QtCore.QRect(50, 50, 170, 22))
        self.label.setText('ТЕКСТ 1 1')

        self.pushButton_1 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_1.setGeometry(QtCore.QRect(0, 422, 93, 28))
        self.pushButton_1.setText('1')
        self.label.setHidden(True)

        self.pushButton_2 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_2.setGeometry(QtCore.QRect(93, 422, 93, 28))
        self.pushButton_2.setText('2')
        self.label.setHidden(True)

        return [self.label, self.pushButton_1, self.pushButton_2]

    def item_two(self):
        self.label = QtWidgets.QLabel(self.Main1)
        self.label.setGeometry(QtCore.QRect(50, 50, 170, 22))
        self.label.setText('ТЕКСТ 2 3')
        self.label.setHidden(True)

        self.pushButton_1 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_1.setGeometry(QtCore.QRect(0, 422, 93, 28))
        self.pushButton_1.setText('3')
        self.pushButton_1.setHidden(True)

        self.pushButton_2 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_2.setGeometry(QtCore.QRect(93, 422, 93, 28))
        self.pushButton_2.setText('4')
        self.pushButton_2.setHidden(True)

        return [self.label, self.pushButton_1, self.pushButton_2]

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    Window1 = QtWidgets.QMainWindow()
    ui = Ui_Window1()
    ui.setupUi(Window1)
    Window1.show()
    sys.exit(app.exec_())
python

1 个回答

  1. Best Answer

    永远不要更改Qt 设计器生成的代码，永远。

    创建另一个从相应小部件继承的类，并使用生成的类来填充它。

    from PyQt5 import QtCore, QtGui, QtWidgets


class Ui_Window1(object):
    def setupUi(self, Window1):
        Window1.resize(800, 450)
        self.Main1 = QtWidgets.QWidget(Window1)
  
        self.comboBox = QtWidgets.QComboBox(self.Main1)
        self.comboBox.setGeometry(QtCore.QRect(693, 0, 91, 22))
        self.comboBox.addItem('ТЕКСТ 1')
        self.comboBox.addItem('ТЕКСТ 2')

        self.label = QtWidgets.QLabel(self.Main1)
        self.label.setGeometry(QtCore.QRect(50, 50, 170, 22))
        self.label.setText('ТЕКСТ 1 1')

        self.pushButton_1 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_1.setGeometry(QtCore.QRect(0, 422, 93, 28))
        self.pushButton_1.setText('1')

        self.pushButton_2 = QtWidgets.QPushButton(self.Main1)
        self.pushButton_2.setGeometry(QtCore.QRect(93, 422, 93, 28))
        self.pushButton_2.setText('2')

        Window1.setCentralWidget(self.Main1)
        QtCore.QMetaObject.connectSlotsByName(Window1)


class MainWindow(QtWidgets.QMainWindow, Ui_Window1):
    def __init__(self):
        super().__init__()
       
        self.setupUi(self)

        self.comboBox.activated[str].connect(self.change_science)
        
        self.pushButton_1.clicked.connect(self.clicked_button_1)
        self.pushButton_2.clicked.connect(self.clicked_button_2)
        
    def change_science(self, text):
        if text == 'ТЕКСТ 1':
            self.label.setText('ТЕКСТ 1 1')
            self.pushButton_1.setText('1')
            self.pushButton_2.setText('2')
        elif text == 'ТЕКСТ 2':
            self.label.setText('ТЕКСТ 2 3')        
            self.pushButton_1.setText('3')
            self.pushButton_2.setText('4')

    def clicked_button_1(self):
        if self.pushButton_1.text() == '1':
            self.label.setText('ТЕКСТ 1 1')        
        if self.pushButton_1.text() == '3':
            self.label.setText('ТЕКСТ 2 3')          
            
    def clicked_button_2(self):
        if self.pushButton_2.text() == '2':
            self.label.setText('ТЕКСТ 1 2')        
        if self.pushButton_2.text() == '4':
            self.label.setText('ТЕКСТ 2 4')          
        

if __name__ == '__main__':
    import sys
    app = QtWidgets.QApplication(sys.argv)
    w = MainWindow()
    w.show()
    sys.exit(app.exec_())

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