PyQt5中线程化应用中的信息错误对话管理

from PyQt5.QtCore import QThread, pyqtSignal
from PyQt5.QtWidgets import QApplication, QMessageBox

class WorkerThread(QThread):
    errorOccurred = pyqtSignal(str)

    def run(self):
        try:
            # 执行线程任务
            pass
        except Exception as e:
            self.errorOccurred.emit(str(e))

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

        self.workerThread = WorkerThread()
        self.workerThread.errorOccurred.connect(self.showErrorDialog)

    def startThread(self):
        self.workerThread.start()

    def showErrorDialog(self, errorMessage):
        QMessageBox.critical(self, "错误", errorMessage)

app = QApplication([])
window = MainWindow()
window.show()
app.exec_()