Question

我正在开发python中的一些程序。现在我可以打开第二个窗口，但现在我将回到第一个窗口。我的问题是当我按下关闭按钮时，我的第一个和第二个窗口关闭。我只会关闭第二个窗口。

我的代码：导入系统来自PyQt4导入QtCore，QtGui 来自forms.runtime_form import Ui_runtime_form 导入日期时间进口时间

"""
    The main class
    First window
"""
class StartQT4(QtGui.QMainWindow):

    def __init__(self, parent=None):

        self.run_mode = 0

        QtGui.QWidget.__init__(self, parent)

        self.ui = Ui_runtime_form()

        self.ui.setupUi(self)

        self.main_thread = main_thread(self)
        self.main_thread.start()
        self.main_thread.update_date_time.connect(self.update_date_time)

        if self.run_mode == 0:

            Uit = QtGui.QPushButton('Uit', self)    
            Uit.move(20,650)
            Uit.clicked.connect(QtCore.QCoreApplication.instance().quit)

            #button to open second window
            bla = QtGui.QPushButton('bla', self)    
            bla.move(150,650)
            bla.clicked.connect(self.child)

    #open second window
    def child(self):

        test = Example(self)
        test.showFullScreen()

    def update_date_time(self):

        #some other code

#Second window    
class Example(QtGui.QMainWindow):

    def __init__(self, parent=None):

        QtGui.QWidget.__init__(self, parent)

        Uit = QtGui.QPushButton('Uit', self)
        Uit.clicked.connect(self.sluit) 
        Uit.move(150,50)

        self.setGeometry(300, 300, 500, 150)
        self.setWindowTitle('Modbus Domotica - Touchscreen')    
        self.show()

    #Close second window    
    def sluit(self):
        sys.exit(0)

class main_thread(QtCore.QThread):

    update_date_time = QtCore.pyqtSignal()

    def __init__(self, layout):

        QtCore.QThread.__init__(self)

    def __del__(self):
        self.wait()

    def run(self):

        while True:

            self.update_date_time.emit()

            time.sleep(10)

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)

    QtGui.QApplication.setStyle(QtGui.QStyleFactory.create("Cleanlooks"))
    QtGui.QApplication.setPalette(QtGui.QApplication.style().standardPalette())

    myapp = StartQT4()
    myapp.showFullScreen()
    sys.exit(app.exec_())

Answer 1

当然两个窗口关闭，你正在退出Python！

#Close second window    
def sluit(self):
    sys.exit(0)

相反，请尝试 -

def sluit(self):
    self.close()

关闭第二个窗口返回第一个窗口

1 个答案: