qt-qml-Qt Creator use msvc2017 qDebug print text messy on windows7

[make2]

I use MSVC 2017

set env encoding utf-8: https://i.stack.imgur.com/BK70l.png

set text eidtor encoding utf-8: https://i.stack.imgur.com/6sYw6.png

I add #pragma execution_character_set("utf-8") to cpp file then

cout<< "六六六" <<endl;
qDebug() << "qu: 六六六";
// output:
// 六六六
// qu: ������

Update1: fromUtf8

I remove #pragma execution_character_set("utf-8") and add this to .pro file

msvc {
    QMAKE_CFLAGS += /utf-8
    QMAKE_CXXFLAGS += /utf-8
}

then run:

cout<< "六六六" <<endl;
qDebug() << QString::fromUtf8("qu: 六六六");
// output:
// 六六六
// "qu: ������"

The question remains

Update2: QStringLiteral

cout<< "六六六" <<endl;
qDebug() << QStringLiteral("qu: 六六六");
// output:
// 六六六
// "qu: ��\uE15E����?"

Update3: waring this

Update 4:

I save with UTF-8

Update5: qUtf8Printable

cout<< "六六六" <<endl;
qDebug() << qUtf8Printable("qu: 六六六");
// output:
// 六六六
// qu: ������

thanks, but not work

Update6:

I want to use WebEngineView in MSVC, so I use UTF-8

Update7: toUnicode

QTextCodec* codecUtf8 = QTextCodec::codecForName("UTF-8");
cout<< "六六六" <<endl;
qDebug() << codecUtf8->toUnicode("qu: 六六六");
//output:
//六六六
//"qu: ������"

Update8:

I change env encoding to system, then it works, cout can not print text to console in Visual Studio

qDebug() << "qu: 六六六";
// output:
// qu: 六六六

[KroMignon]

@make2 Did you store you source code file as UTF-8 ?

qDebug() << qUtf8Printable("qu: 六六六"); should do the job.

EDIT:

You can also setup codec for C-Strings:

 QTextCodec *codec = QTextCodec::codecForName("UTF-8");
 QTextCodec::setCodecForCStrings(codec);

qDebug() << "qu: 六六六";

==> Sorry is not working/supported with Qt5