C++遍历文件夹下的特定格式的所有文件(jpg)
#include <io.h> /* string folderDir = 要遍历的文件夹 string filter 需要遍历的文件类型 */ void listFiles(string folderDir, string filter) { intptr_t handle; _finddata_t findData; string dir = folderDir + "\\*.*"; handle = _findfirst(dir.c_str(), &findData); // 查找目录中的第一个文件 if (handle == -1) { cout << "Failed to find first file!\n"; return; } do { if (findData.attrib & _A_SUBDIR) { if (strcmp(findData.name, ".") != 0 && strcmp(findData.name, "..") != 0) { cout << findData.name << "\t<dir>\n"; string secondfolderpath = folderDir + "\\" + findData.name; listFiles(secondfolderpath, filter); } } else { string filename = findData.name; string filesub = filename.substr(filename.find_last_of('.')+1 ,-1); if (strcmp(filesub.c_str(), filter.c_str()) ==0) { cout << findData.name << "\t" << findData.size << endl; } } } while (_findnext(handle, &findData) == 0); // 查找目录中的下一个文件 cout << "Done!\n"; _findclose(handle); // 关闭搜索句柄 }
如果是opencv的话就比较方便了,直接可以得到所有文件的全路径vec
cv::Directory dir; vector<string> fileNames = dir.GetListFilesR(img_folder, "*", true);
MFC遍历文件夹下所有文件也比较简单
void CTraversePicsDlg::TraverseDir(CString& dir, std::vector<CString>& vec) { CFileFind ff; if (dir.Right(1) != "\\") dir += "\\"; dir += "*.*"; BOOL ret = ff.FindFile(dir); while (ret) { ret = ff.FindNextFile(); if (ret != 0) { if (ff.IsDirectory() && !ff.IsDots()) { CString path = ff.GetFilePath(); TraverseDir(path, vec); } else if (!ff.IsDirectory() && !ff.IsDots()) { CString name = ff.GetFileName(); CString path = ff.GetFilePath(); vec.push_back(path); } } } }