学步园

如题，Qt的中文显示很麻烦的，需要用本地编码方式，然后获取字符串。再附上文件操作，文件写也是支持中文的：

#include <QtWidgets/QApplication>
#include <QFiledialog>
#include <QTextCodec>
#include <QTextStream>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    
    QString str;
    str = str.fromLocal8Bit("吃饭");

    QTextCodec *codec = QTextCodec::codecForLocale();
    QString aa = codec->toUnicode("Qt中文显示");

    qt2 w;
    w.show();

    QString dir = QFileDialog::getExistingDirectory(&w, str, "c:");
    QString wrFile = QFileDialog::getSaveFileName(&w, aa, dir);
    QStringList open = QFileDialog::getOpenFileNames(&w, "Open Files", "D:\\c_proj");

    QFile file(wrFile);

    if (!file.open(QIODevice::WriteOnly | QIODevice::Text))
        return 1;

    QTextStream out(&file);
    out << "The magic number is: " << 49 << "\n";
    out << aa << endl;

    for(QStringList::iterator iter = open.begin(); iter != open.end(); iter++)
    {
        out << *iter << endl;
    }

    return a.exec();
}