qt加载 字体

    //加载emoji字体
    QString emojiFontFilePath = QApplication::applicationDirPath() + "Fonts/Apple Color Emoji.ttc";
    QFile f(emojiFontFilePath);
    qDebug() << "file exists:" << f.exists();
    qDebug() << emojiFontFilePath;
    auto addresult = QFontDatabase ::addApplicationFont(emojiFontFilePath);
    qDebug() << "emoji font id" << addresult;
    for (auto i : QFontDatabase::applicationFontFamilies(addresult).at(0))
    {
        qDebug() << "emoji family:" << i;
    }