如何在使用python 3.4的方法中将`ObjectName`的名称像`self.lineEdit_260`作为参数传递？ [重复]

Question

这个问题在这里已有答案：

• Argument 1 has unexpected type 'NoneType'? 1回答

如何将ObjectName的名称像self.lineEdit_260一样传递给使用python 3.4的方法中的参数？

self.Open_Fan_J104_A_stage_2(no=self.lineEdit_260.text()))

def Open_Fan_J104_A_stage_2(self,no):

    if no=='' and self.lineEdit_247.text()=='':
        print(type(self.lineEdit_260.text()))
        self.start_time=datetime.datetime.now()
        self.lineEdit_260.setText(str(self.start_time))
    elif self.lineEdit_247.text()=='':

        QMessageBox.information(self, 'x')

    else:
        self.lineEdit_260.setText('')
        self.start_time = datetime.datetime.now()
        self.lineEdit_260.setText(str(self.start_time))

    self.lineEdit_247.setText('')
    self.lineEdit_241.setText('')

当我运行此代码时：

self.pushButton_123.clicked.connect( self.Open_Fan_J104_A_stage_2(no=self.lineEdit_260.text()))

TypeError：参数1具有意外类型'NoneType'

Answer 1

我认为，Open_Fan_J104_A_stage_2期待一个callable，因为缺乏信息。所以试试吧，

self.Open_Fan_J104_A_stage_2(lambda: self.lineEdit_260.text()))