PyQt 的 QThread
import sysfrom PyQt5.QtCore import QThread, pyqtSignalfrom PyQt5.QtWidgets import QPushButton, QDialog, QApplicationclass BigThingThread(QThread): finished_signal = pyqtSignal(str) def __init__(self, rest, parent=None): super().__init__(parent) self._rest = rest def run(self): print('do something big') time.sleep(self._rest) self.finished_signal.emit('done')class MyDialog(QDialog): def __init__(self, parent=None): super().__init__(parent) self.button = QPushButton(self) self.button.setText('干大事') self.button.clicked.connect(self._click_do_something) @staticmethod def _show_message(message): print('{}'.format(message)) def _click_do_something(self): self.big_thread = BigThingThread(1) self.big_thread.finished_signal.connect(self._show_message) self.big_thread.start()if __name__ == '__main__': app = QApplication(sys.argv) dialog = MyDialog() dialog.show() sys.exit(app.exec_())