1、测试代码：

// http://blog.csdn.net/changsheng230/article/details/6588447     QString str = QString::fromLocal8Bit("我是中国人");    QString str2 = QString("本地文本");  // 乱码    qDebug() << str;    qDebug() << str2;    // Method 2    QTextCodec *codec = QTextCodec::codecForName("GBK"); // get the codec for KOI8-R    //QString locallyEncoded = codec->toUnicode( "显示中文" );    QString locallyEncoded = codec->toUnicode( "我是中国人" );    qDebug() << locallyEncoded << endl;    codec = QTextCodec::codecForName("gbk"); // get the codec for KOI8-R    locallyEncoded = codec->toUnicode( "我是中国人" );    qDebug() << locallyEncoded << endl;    wchar_t *pwc = L"我是中国人";    for (size_t i=0; i

 

2、