qt_demoe/styledemo/main.cpp

#pragma execution_character_set("utf-8")
#include "frmmain.h"
#include <QApplication>
#include <QTextCodec>

int main(int argc, char *argv[])
{
#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
    QGuiApplication::setHighDpiScaleFactorRoundingPolicy(Qt::HighDpiScaleFactorRoundingPolicy::Floor);
#endif
    QApplication a(argc, argv);
    a.setFont(QFont("Microsoft Yahei", 9));

#if (QT_VERSION <= QT_VERSION_CHECK(5,0,0))
#if _MSC_VER
    QTextCodec *codec = QTextCodec::codecForName("gbk");
#else
    QTextCodec *codec = QTextCodec::codecForName("utf-8");
#endif
    QTextCodec::setCodecForLocale(codec);
    QTextCodec::setCodecForCStrings(codec);
    QTextCodec::setCodecForTr(codec);
#else
    QTextCodec *codec = QTextCodec::codecForName("utf-8");
    QTextCodec::setCodecForLocale(codec);
#endif

    frmMain w;
    w.setWindowTitle("样式表示例 (QQ: 517216493 WX: feiyangqingyun)");
    w.show();    

    return a.exec();
}