我创建了一个小示例，展示了3种不同的简单线程处理方式。我希望它能帮助你找到解决问题的正确方法。
import sysimport timefrom PyQt5.QtCore import (QCoreApplication, QObject, QRunnable, QThread, QThreadPool, pyqtSignal)# Subclassing QThread# http://qt-project.org/doc/latest/qthread.htmlclass AThread(QThread): def run(self): count = 0 while count < 5: time.sleep(1) print("A Increasing") count += 1# Subclassing QObject and using moveToThread# http://blog.qt.digia.com/blog/2007/07/05/qthreads-no-longer-abstractclass SomeObject(QObject): finished = pyqtSignal() def long_running(self): count = 0 while count < 5: time.sleep(1) print("B Increasing") count += 1 self.finished.emit()# Using a QRunnable# http://qt-project.org/doc/latest/qthreadpool.html# Note that a QRunnable isn't a subclass of QObject and therefore does# not provide signals and slots.class Runnable(QRunnable): def run(self): count = 0 app = QCoreApplication.instance() while count < 5: print("C Increasing") time.sleep(1) count += 1 app.quit()def using_q_thread(): app = QCoreApplication([]) thread = AThread() thread.finished.connect(app.exit) thread.start() sys.exit(app.exec_())def using_move_to_thread(): app = QCoreApplication([]) objThread = QThread() obj = SomeObject() obj.moveToThread(objThread) obj.finished.connect(objThread.quit) objThread.started.connect(obj.long_running) objThread.finished.connect(app.exit) objThread.start() sys.exit(app.exec_())def using_q_runnable(): app = QCoreApplication([]) runnable = Runnable() QThreadPool.globalInstance().start(runnable) sys.exit(app.exec_())if __name__ == "__main__": #using_q_thread() #using_move_to_thread() using_q_runnable()
