while std has std::string, to change between them, use following code: // #include <QMessageBox>usingnamespacestd;// #include <fstream>#include<cassert>QStrings2q(std::string&str){autoqs=QString::fromLocal8Bit(QByteArray::fromRawData(str.c_str(),str.size()));returnqs;}QStrings2q...
在Qt中,可以使用.toUtf8()或.toLatin1()函数来获取一个QByteArray对象,然后通过.constData()函数获得其对应的const char*指针。 例如,你可以尝试以下方式: intsizeWritten=send(it.key(),strAddName.toUtf8().constData(),strAddName.toUtf8().size(),0); 在这个示例中,我们首先使用.toUtf8()将QStrin...
app = QtGui.QApplication(sys.argv) ed = QtGui.QLineEdit() def editingFinished(): # The text() returns a QString, which is unicode-aware print type(ed.text()) # This returns a QByteArray, which is the encoded unicode string in the utf-8 encoding. print type(ed.text().toUtf8())...
ui(new Ui::Assistant_1){ui->setupUi(this);BeaWindow();//窗口优化BeaBtn();//按钮优化}Assistant_1::~Assistant_1(){delete ui;}//点击下一步voidAssistant_1::on_pushButton_clicked(){this->close();Assistant_2*assistant_2=newAssistant_2();assistant_2->show();Q...
toString(&ok); if (!ok) { qDebug() << "Could not convert variant of type" << variant.typeName() << "to string."; } else { qDebug() << "Converted variant to string:" << str; } // 尝试安全地转换为整数 int num = variant.toInt(&...
Crash Report This crash report was reported through the automatic crash reporting system 🤖 Traceback TypeError: unable to convert a Python 'int' object to a C++ 'QString' instance TypeError: unable to convert a Python 'int' object to a C...
namespace nlohmann { template<> struct adl_serializer<QString> { static void to_json(json &j, const QString &s) { j = s.toStdString(); } static void from_json(const json &j, QString &s) { s = QString::fromStdString(j.get<std::string>()); } }; template<typename T> struc...
fgets(f1,6,out);fgets(f2,6,out);这两句的形参类型是char*, int, FILE*, 但是实参是QString, int, FILE* ,不能匹配。改为：fgets(f1.toLatin1(),6,out);fgets(f2.toLatin1(),6,out);
QStringList videoPath = searchBilibiliVideo(ui->sourcePathText->text()); ui->log->append("找到视频数量:" + QString::number(videoPath.size())); QStringListIterator strIterator(videoPath); while (strIterator.hasNext()) { convertBilibiliVideoToMp4(strIterator.next(), ui->targetPathTex...
{stringname;int64_tmaster;vector<User> members; XTOSTRUCT(O(name, master, members));// 添加宏定义XTOSTRUCT在结构体定义结尾};intmain(intargc,char*argv[]){ Group g; g.name ="C++"; g.master =2019; g.members.resize(2); g.members[0] = User(1,"Jack","jack@x2struct.com"); g....