QUrl url("https://example.com"); QUrlQuery query; query.addQueryItem("id", "1234"); query.addQueryItem("name", "John Doe"); url.setQuery(query.query()); // Resulting URL: "https://example.com?id=1234&name=John%20Doe"
QUrl url("https://example.com?id=1234&name=John%20Doe"); QUrlQuery query(url.query()); qDebug() << query.queryItemValue("id"); // Output: "1234" qDebug() << query.queryItemValue("name"); // Output: "John Doe"Package library: Qt Core library.