任务WORK在thread里面运行后，如果想停止任务（而不是简单终止线程），用线程安全的方式用槽信号来触发任务停止条件时，不起作用，因为线程内需要等任务（dowork）自然完成后，才会接收其他槽信号队列。如果直接用跨线程的方式执行实例self.work.stop，反而能够立即停止任务。只是隐约感觉这种方式不太正规，请问有没有其他方式？

class Work(QObject):
update_process = pyqtSignal(int)
update_completed = pyqtSignal()

.....ini_thing....

def dowork(self):
self.var = 0
while self.var < 10 and self._running == True
self.var += 1
self.update_process.emit(self.var)
self.update_completed.emit()

def stopwork(self):
self._running = false

class UiTest(QDialog):
.....UI-thing....

self.work = Work()
self.thread = QThread()
self.work.moveToThread(self.thread)

self.thread.started.connect(self.work.dowork)
self.work.update_process.connect(self.currentStep.setValue)
self.worker.update_completed.connect(lambda:print('work finished'))

self.btnDoWork.clicked.connect(self.work.dowork)

1. self.btnStopWork.clicked.connect(self.work.stopwork)[/color] -- 通过槽触发任务

2. self.btnStopWork.clicked.connect(self.stopwork)[/color] -- 直接跨线程介入任务

self.btnStopThread.clicked.connect(self.stop_thread)
self.btnStartThread.clicked.connect(self.start_thread)
self.thread.finished.connect(lambda: print('thread finished'))

def start_thread(self):
self.thread.start()
def stop_thread(self):
self.thread.quit()
self.thread.wait()

def stop_work(self): -------------直接跨线程介入任务

 self.work.stopwork

。。。。APP Thing。。。。。。。