【PYQT5】retranslateUi（）

作用就是重新翻译一遍UI，是一个动态翻译的解决方案。一般放在UI设计代码的后面

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(305, 259)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.progressBar = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar.setGeometry(QtCore.QRect(50, 10, 201, 31))
        self.progressBar.setLayoutDirection(QtCore.Qt.LeftToRight)
        self.progressBar.setMaximum(0)
        self.progressBar.setProperty("value", -1)
        self.progressBar.setAlignment(QtCore.Qt.AlignHCenter|QtCore.Qt.AlignTop)
        self.progressBar.setTextVisible(True)
        self.progressBar.setOrientation(QtCore.Qt.Horizontal)
        self.progressBar.setInvertedAppearance(False)
        self.progressBar.setTextDirection(QtWidgets.QProgressBar.TopToBottom)
        self.progressBar.setFormat("")
        self.progressBar.setObjectName("progressBar")
        self.progressBar_2 = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar_2.setGeometry(QtCore.QRect(50, 180, 201, 31))
        self.progressBar_2.setLayoutDirection(QtCore.Qt.RightToLeft)
        self.progressBar_2.setMaximum(0)
        self.progressBar_2.setProperty("value", -1)
        self.progressBar_2.setAlignment(QtCore.Qt.AlignBottom|QtCore.Qt.AlignHCenter)
        self.progressBar_2.setTextVisible(True)
        self.progressBar_2.setOrientation(QtCore.Qt.Horizontal)
        self.progressBar_2.setInvertedAppearance(False)
        self.progressBar_2.setTextDirection(QtWidgets.QProgressBar.TopToBottom)
        self.progressBar_2.setObjectName("progressBar_2")
        self.progressBar_3 = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar_3.setGeometry(QtCore.QRect(20, 10, 31, 201))
        self.progressBar_3.setLayoutDirection(QtCore.Qt.LeftToRight)
        self.progressBar_3.setMaximum(0)
        self.progressBar_3.setProperty("value", -1)
        self.progressBar_3.setAlignment(QtCore.Qt.AlignLeading|QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop)
        self.progressBar_3.setTextVisible(True)
        self.progressBar_3.setOrientation(QtCore.Qt.Vertical)
        self.progressBar_3.setInvertedAppearance(False)
        self.progressBar_3.setTextDirection(QtWidgets.QProgressBar.TopToBottom)
        self.progressBar_3.setObjectName("progressBar_3")
        self.progressBar_1 = QtWidgets.QProgressBar(self.centralwidget)
        self.progressBar_1.setGeometry(QtCore.QRect(250, 10, 31, 201))
        self.progressBar_1.setLayoutDirection(QtCore.Qt.LeftToRight)
        self.progressBar_1.setMaximum(0)
        self.progressBar_1.setProperty("value", -1)
        self.progressBar_1.setAlignment(QtCore.Qt.AlignLeading|QtCore.Qt.AlignLeft|QtCore.Qt.AlignTop)
        self.progressBar_1.setTextVisible(True)
        self.progressBar_1.setOrientation(QtCore.Qt.Vertical)
        self.progressBar_1.setInvertedAppearance(True)
        self.progressBar_1.setTextDirection(QtWidgets.QProgressBar.TopToBottom)
        self.progressBar_1.setObjectName("progressBar_1")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(90, 220, 101, 31))
        self.pushButton.setObjectName("pushButton")
        MainWindow.setCentralWidget(self.centralwidget)

        #重新翻译一遍UI，是一个动态翻译的解决方案。
        self.retranslateUi(MainWindow)