Question

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(1093, 670)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(120, 320, 93, 28))
        self.pushButton.setObjectName("pushButton")
        MainWindow.setCentralWidget(self.centralwidget)
        ...

        self.retranslateUi(MainWindow)
        self.pushButton.clicked.connect(self.pushButtonClicked)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "PushButton"))




    def pushButtonClicked(self):
        print("hi")
        dialog = QFileDialog
        dialog.show()
        ##dialog.getOpenFileName(None,tr("Open Image"), "/home", tr("Image Files (*.png *.jpg *.bmp)"))


if __name__ == "__main__":

    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()
    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())

我从PYQT5 Designer制作此代码，我想打开QFileDialog来选择文件。但是当我点击pushButtonClicked的connet按钮时，程序停止并崩溃。请帮帮我

Answer 1

你也可以这样做：

def pushButtonClicked(self):
    self.op_dir = QFileDialog.getOpenFileName(None,tr("Open Image"), "/home", tr("Image Files (*.png *.jpg *.bmp)"))

变量self.op_dir将包含您选择的路径

Answer 2

path_to_project = QFileDialog.getExistingDirectory(None, tr("Open Directory"), "C:/", QFileDialog.ShowDirsOnly|QFileDialog.DontResolveSymlinks)

也没有为我工作。调用时崩溃。但是，删除转换函数tr（）并只放入字符串即可解决问题：

path_to_project = QFileDialog.getExistingDirectory(None, "Open Directory", "C:/", QFileDialog.ShowDirsOnly|QFileDialog.DontResolveSymlinks)

当我在pyqt中调用Qfiledialog时程序停止

2 个答案: