Python3-Pyqt5如何通过异常或按退出按钮结束线程中的循环

Question

我是 python 和 pyqt 的新手，并且有一个我无法解决的问题:以下程序在其 GUI 中有 3 个 while 循环，从一个值运行到零。我将这些循环放在单独的 QThread 中以同时执行它们。问题:如果我按下窗口的退出按钮，循环将继续并仍在控制台中运行，输出线程数(这就是为什么我知道它们仍在运行)。如何通过退出程序来停止此操作？

抱歉，代码困惑。正如我所说，Python 对我来说是新的......

主类:

class Application(QtWidgets.QMainWindow):
    counter = pyqtSignal(int)
    counting = False
    #QtWidgets.QWidget

    def __init__(self, name):
        super(Application, self).__init__()
        self.setupUi(self)

放入线程中的循环之一:

#Start des Reinigungsprozesses Becken 1
def becken1start(self):
    self.sekunden1 = value1 * 60
    if self.pushButton1.isChecked():
        if  value1 == 0:
            self.pushButton1.setChecked(False)
            self.showMessageBox('Bitte Laufzeit der Reinigung wählen')
        else:
            thread = threading.Thread(target=self.run1)
            thread.start()
            print("Active Threads :", threading.activeCount())
    else:
        pass

#Ausführen des Threads für den Countdown Becken 1
def run1(self):
    while self.sekunden1 > -1:
        sleep(1)
        GPIO.setup(2, GPIO.OUT) 
        GPIO.output(2, GPIO.LOW)
        self.dial1.setDisabled(True)
        self.lcdNumber1.display(self.sekunden1)
        self.pushButton1.setText("läuft")
        #QtWidgets.qApp.processEvents()
        print("Active Threads :", threading.activeCount())
        self.sekunden1-=1
        if self.pushButton1.isChecked():
            continue
        else:
            break
    self.dial1.setDisabled(False)
    self.pushButton1.setText("BECKEN 1")
    self.lcdNumber1.display(value1)
    self.pushButton1.setChecked(False)
    GPIO.output(2, GPIO.HIGH)

退出部分:

if __name__ == "__main__":
    import sys
    sys._excepthook = sys.excepthook
    def my_exception_hook(exctype, value, traceback):
        print(exctype, value, traceback)
        sys._excepthook(exctype, value, traceback)
        sys.exit()

    sys.excepthook = my_exception_hook
    app = QtWidgets.QApplication(sys.argv)
    Form = QtWidgets.QWidget()
    ui = Application(threading.Thread)
    ui.setupUi(Form)
    Form.show()
    sys.exit(app.exec_())

Answer 1

#Start des Reinigungsprozesses Becken 1
def becken1start(self):
    self.sekunden1 = value1 * 60
    if self.pushButton1.isChecked():
        if  value1 == 0:
            self.pushButton1.setChecked(False)
            self.showMessageBox('Bitte Laufzeit der Reinigung wählen')
        else:
            thread = threading.Thread(target=self.run1)
            thread.daemon = True 
            thread.start()
            print("Active Threads :", threading.activeCount())
    else:
        pass

使线程成为守护进程意味着如果主线程终止，该线程将不会保持运行状态。