C++ 文件夹，文件的搜索

需要#include

使用了_findfirst, _findnext, _findclose

注意：在X64的系统下_findfirst()返回的handle是long long型的，如果是long 或int 会在_findnext()的时候报错

 

#include 


void find_fold(const char* mainDir, std::vector &files)
{
    files.clear();
    intptr_t hFile; //win10 need long long or intptr_t, long will show error
    _finddata_t fileinfo;

    char findDir[250];
    strcpy_s(findDir, mainDir);
    strcat_s(findDir, "\\*.*");

    if ((hFile = _findfirst(findDir, &fileinfo)) != -1)
    {
        do
        {
            if ((fileinfo.attrib & _A_SUBDIR))//find fold
            {
                if (fileinfo.name[0] == '.') //avoid . ..
                    continue;
                char filename[_MAX_PATH];
                strcpy_s(filename, mainDir);
                strcat_s(filename, "\\");
                strcat_s(filename, fileinfo.name);
                string temfilename = filename;
                files.push_back(temfilename);
                cout << temfilename << endl;
            }
        } while (_findnext(hFile, &fileinfo) == 0);
        _findclose(hFile);
    }
}

void find_file(const char* mainDir, std::vector &files)
{
    files.clear();
    intptr_t hFile; //win10 need long long or intptr_t, long will show error
    _finddata_t fileinfo;

    char findDir[250];
    strcpy_s(findDir, mainDir);
    strcat_s(findDir, "\\*.jpg");

    if ((hFile = _findfirst(findDir, &fileinfo)) != -1)
    {
        do
        {
            if (!(fileinfo.attrib & _A_SUBDIR))//find fold
            {
                if (fileinfo.name[0] == '.') //avoid . ..
                    continue;
                char filename[_MAX_PATH];
                strcpy_s(filename, mainDir);
                strcat_s(filename, "\\");
                strcat_s(filename, fileinfo.name);
                string temfilename = filename;
                files.push_back(temfilename);
                cout << temfilename << endl;
            }
        } while (_findnext(hFile, &fileinfo) == 0);
        _findclose(hFile);
    }
}

void main()
{
    std::vector files;
    find_fold(trainDir, files);  //find folder first

    for (auto d : files)
    {
        std::vector jpgs;
        find_file(d.c_str(), jpgs);  //find file in each folder

    }
}

参考

http://blog.csdn.net/yhl_leo/article/details/51009608 

http://blog.csdn.net/abcjennifer/article/details/18147551