pyqt5 按钮不能重复点击

class MainView(QtWidgets.QMainWindow):
    def __init__(self, parent=None):
        super(MainView, self).__init__(parent)
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

    def initConnect(self):
        self.ui.AddButton.clicked.connect(self.runOneSpiderThread)

    def runOneSpiderThread(self):
        if self.niuwa_thread:
            self.niuwa_thread.quit()
            self.niuwa_thread.wait()
        cookie = self.ui.CookieEdit.toPlainText()
        station = self.ui.comboBox.currentText()
        if cookie.strip() == '':
            self.ui.MessgeLabel.setText( "请输入cookie ！\n")
            return None
        queue = Queue()
        queue.put({'cookie':cookie,'station':station})
        self.niuwa_thread = SpiderThreadKeyword(self, queue)
        self.niuwa_thread.thread_communicate.connect(self.print_thread_communicate)
        self.niuwa_thread.start()
        self.ui.AddButton.setEnabled(False)    #不重复点击事件setEnabled