Qt不设置编码,显示其它国家的语言不乱码

    //Russian的unicode    static const QChar unicode[] = {0x0420,0x0443,0x0441,0x0441,0x043A,0x0438,0x0439};    int size = sizeof(unicode) / sizeof(QChar);    QString str= QString::fromRawData(unicode, size);//Россию