退出图形用户界面时终止QThread

from PyQt5.QtCore import QThread, pyqtSignal
from PyQt5.QtWidgets import QApplication, QMainWindow, QPushButton

class WorkerThread(QThread):
    terminate_signal = pyqtSignal()

    def run(self):
        while True:
            # 执行线程的主要逻辑
            # ...

            # 检查终止标志位
            if self.isInterruptionRequested():
                break

    def stop(self):
        self.terminate_signal.emit()

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()

        self.worker_thread = WorkerThread()
        self.worker_thread.terminate_signal.connect(self.worker_thread.stop)

        self.button = QPushButton("Quit", self)
        self.button.clicked.connect(self.close)

    def closeEvent(self, event):
        self.worker_thread.stop()
        self.worker_thread.wait()
        event.accept()

if __name__ == "__main__":
    app = QApplication([])
    window = MainWindow()
    window.show()
    app.exec_()