使用.qm来翻译软件

//获取当前系统语言环境，并设置语言
static QString find_translation_file()
{
    QString locale = QLocale::system().name(); // language code + country code (xx_XX)
    QString language = locale.mid(0, 2); // language code (first two chars of locale)
    QString translation_file_basename =
            //QDir(Paths::translationPath()).absoluteFilePath("mystiq_");
            QDir(":/translations/").absoluteFilePath("mystiq_");

    // look for mystiq_xx_XX.qm in the translation directory
    QString translation_language_country = translation_file_basename + locale + ".qm";
    if (QFile(translation_language_country).exists())
        return translation_language_country;

    // look for mystiq_xx.qm in the translation directory
    QString translation_language = translation_file_basename + language + ".qm";
    if (QFile(translation_language).exists())
        return translation_language;

    // translation for current locale not found, return empty string
    return "";
}
//使用环境
    // Setup translation
    QTranslator translator;
    //使用获取到的环境并设置
    QString translation_filename = find_translation_file();
    if (!translation_filename.isEmpty()) {
        qDebug() << "Translation file: " << translation_filename;
        translator.load(translation_filename);
        app.installTranslator(&translator);
    }