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#include <QtCore>
#include <QtGui>
class FileRenameRunnable: public QThread
{
Q_OBJECT
public :
FileRenameRunnable(QString const rootPath)
: rootPath_(rootPath)
{
}
virtual void run()
{
for(int i = 0; i != 8448; ++i)
{
QFile file(rootPath_ + "/kkk" + QString::number(i) + ".jpg");
file.rename(rootPath_ + "/jjj" + QString::number(i) + ".jpg");
emit valueChanged(i);
}
}
signals:
void valueChanged(int value);
private:
QString rootPath_;
};
#include <QtCore>
#include <QtGui>
#include "fineNameRunnable.hpp"
int main(int argc, char **argv)
{
QApplication app( argc, argv );
QFileSystemModel model;
QString const rootPath = "E:/file_test/very big";
QTableView view;
view.setModel(&model);
view.setRootIndex(model.setRootPath(rootPath));
QProgressBar progress;
progress.setRange(0, 8447);
QDir::setCurrent(rootPath);
FileRenameRunnable *myTask = new FileRenameRunnable(rootPath);
app.connect(myTask, SIGNAL(finished()), myTask, SLOT(deleteLater()));
app.connect(myTask, SIGNAL(valueChanged(int)), &progress, SLOT(setValue(int)));
QSplitter splitter;
splitter.addWidget(&view);
splitter.addWidget(&progress);
splitter.show();
myTask->start();
qDebug() << "finish";
return app.exec();
}
#include <iostream>
int main()
{
int sum1 = 0;
for(int i = 0; i != 8448; ++i)
sum1 += i;
std::cout << sum1 << std::endl;
int sum2 = 0;
for(int i = 0; i < 8448; ++i)
sum2 += i;
std::cout << sum2 << std::endl;
std::cout<<std::boolalpha << (sum1 == sum2)<<std::endl;
return 0;
}
std::list<int> data;
.......
for(auto it = std::begin(data); it != std::end(data); ++it)
{
........
}