Question

当我使用QCommandLineOption和QCommandLineParser进行解析时，无法获得多个参数。

这就是我想要的：

dbmanager.exe -f args1 args2

我想获得args1和args2。但是我无法获得args2。

我该怎么办？

Answer 1

arg1和arg2看起来像位置参数，即应用程序期望以特定顺序给出的参数。

此代码段应帮助您获得所需的内容：

public void requestPayment(BigDecimal amount) {
        // Disables the button to prevent multiple clicks.
        //mGooglePayButton.setClickable(false);

        // The price provided to the API should include taxes and shipping.
        // This price is not displayed to the user.

        String chargeAmount = amount.divide(MICROS).setScale(2, RoundingMode.HALF_EVEN).toString();

//        String price = PaymentsUtil.microsToString(chargeAmount);

        TransactionInfo transaction = PaymentsUtil.createTransaction(chargeAmount);

        Parcel parcel = Parcel.obtain();
        parcel.writeString(chargeAmount);
        parcel.recycle();
        transaction.writeToParcel(parcel, 0);

        PaymentDataRequest request = PaymentsUtil.createPaymentDataRequest(transaction);

        Task<PaymentData> futurePaymentData = mPaymentsClient.loadPaymentData(request);


        // Since loadPaymentData may show the UI asking the user to select a payment method, we use
        // AutoResolveHelper to wait for the user interacting with it. Once completed,
        // onActivityResult will be called with the result.
        AutoResolveHelper.resolveTask(futurePaymentData, Objects.requireNonNull(getActivity()), LOAD_PAYMENT_DATA_REQUEST_CODE);


    }

然后检查以下参数和选项：

QCommandLineParser parser;
// define the parameters and options your application will use
parser.addPositionalArgument("arg1", QCoreApplication::translate("main", "this is the first argument."));
parser.addPositionalArgument("arg2", QCoreApplication::translate("main", "this is the second argument."));

// this is for the -f option
QCommandLineOption fOption(QStringList() << "f" << "foption",
        QCoreApplication::translate("main", "does something optional."));
parser.addOption(fOption);

为使代码更健壮，您可能需要检查提供的位置参数的数量，并在缺少某些内容时发出错误/警告。

关于多参数使用QCommandLineOption时

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