Python/Pyqt5-将选定的下拉选项存储在变量中

Question

我正在尝试根据用户选择“基本”还是“高级”来运行不同的 if 语句。

到目前为止，这是我的代码。我将使用高级/基本选项，因此我可以执行以下操作并将其存储在一个函数中，然后在需要时调用它。

def basicAdvOpt
    advBasicOptions = ("Basic", "Advanced") 

    selection, okPressed = QInputDialog.getItem(self, "Select Basic or Advanced", "", advBasicOptions, 0, False)
    if selection[0]:
        print('Basic')

    if selection[1]:
        print('advanced')

这是我原来的工作代码。发生的情况是，因为它是一个数组，所以它总是等于 [0] 和 [1]，我试图弄清楚如何存储他们选择的任何值。

    def getText(self):
        userInput, okPressed = QInputDialog.getText( self,"Input IP-address", "Your IP-address:",QLineEdit.Normal, "")
        if okPressed:
            self.ipFormatChk(userInput)     #Pass the userInput variable 
                                            into the ipFormatChk function

            if userInput.strip():
                self.ipFormatChk(userInput)


    def ipFormatChk(self, userInput):  #Checks if the input matches IP 
                                         format

        pattern = r"\b(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\." \
                  r"(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b"

        if re.match(pattern, userInput):
            additionalText = "This is IP-address"
            self.label.setStyleSheet("color: lightgreen; font: 24px;")

            advBasicOptions = ("Basic", "Advanced") 
            selection, okPressed = QInputDialog.getItem(self, "Select Basic or Advanced", "", advBasicOptions, 0, False)
            if selection[0]:
                print('Basic')

            if selection[1]:
                print('advanced')
#Or just call the function


            basicAdvOpt()

        else:
            additionalText = "This is NOT an IP-address"
            self.label.setStyleSheet("color: red; font: 24px;")
            advBasic = ("Basic", "Advanced")
            advBasic, okPressed = QInputDialog.getItem(self, "Select Basic or Advanced", "", advBasic, 0, False)

        self.label.setText("{} <- {}".format(userInput, additionalText))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    ex  = App()
    sys.exit(app.exec_())

Answer 1

将结果与数组中的项目进行比较。

advBasicOptions = ("Basic", "Advanced") 
selection, okPressed = QInputDialog.getItem(self, "Select Basic or Advanced", "", advBasicOptions, 0, False)

if selection == advBasicOptions[0]:
    print('Basic')
if selection == advBasicOptions[1]:
    print('advanced')

注意：我可能建议将两个 if 语句放在一个封闭的 if okPressed 块中，因为它可能会选择 Cancel 或任何非 Ok 选项。

如果你需要存储它以供以后使用，只需将它保存到 self 上的实例变量：

advBasicOptions = ("Basic", "Advanced") 
self.selection, okPressed = QInputDialog.getItem(self, "Select Basic or Advanced", "", advBasicOptions, 0, False)

if self.selection == advBasicOptions[0]:
    print('Basic')
if self.selection == advBasicOptions[1]:
    print('advanced')

我希望这能回答你的问题