遍历文件夹及其子孙文件夹中的文件

 1 #include <QDir>
 2 #include <QString>
 3 #include <QDebug>
 4 #include <iostream>
 5 #include <fstream>
 6 #include <QtCore>
 7 #include <QCoreApplication>
 8 
 9 
10 std::ofstream output("D:dir.txt");
11 
12 void addSubFolderImages(QString path)
13 {
14     //判断路径是否存在
15     QDir dir(path);
16     if(!dir.exists())
17     {
18         return;
19     }
20 
21     //获取所选文件类型过滤器
22     QStringList filters;
23     filters<<QString("*.jpeg")<<QString("*.jpg")<<QString("*.png")<<QString("*.tif")<<QString("*.gif")<<QString("*.bmp");
24 
25     //定义迭代器并设置过滤器
26     QDirIterator dir_iterator(path,
27         filters,
28         QDir::Files | QDir::NoSymLinks,
29         QDirIterator::Subdirectories);
30 
31     QStringList string_list;
32     while(dir_iterator.hasNext())
33     {
34         dir_iterator.next();
35         QFileInfo file_info = dir_iterator.fileInfo();
36         QString absolute_file_path = file_info.absoluteFilePath();
37         qDebug()<< absolute_file_path;
38         output << absolute_file_path.toStdString()<<std::endl;
39         string_list.append(absolute_file_path);
40     }
41 }
42 
43 
44 int main(){
45     addSubFolderImages(QString("D:\huase\"));
46 
47     qDebug()<<"COMPLETE";
48     return 0;
49 }