Pyqt QApplication.processEvents() 防止页面锁死

    def autoSubmitCloseOrder(self):
        if self.ib is not None:
            second = 0
            while True:
                QApplication.processEvents()
                self.ib.sleep(0.1)
                second += 1
                if second % 10 == 0:
                    print(datetime.datetime.now())

用QApplication.processEvents()，可以用在while 里，还是会去执行UI，不会导致页面锁死

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