當我在pyqt中調用Qfiledialog時程序停止

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_())

我使用PYQT5 Designer創建此代碼，並想打開QFileDialog選擇文件。 但是，當我單擊與pushButtonClicked關聯的按鈕時，該程序將停止並崩潰。 請幫我

Answer 1

您也可以這樣操作：

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

並且變量self.op_dir將包含您選擇的路徑

Answer 2

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

也不適合我 調用時崩潰。 但是，刪除轉換函數tr（）並僅放入字符串即可解決此問題：

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