C/C++ 在處理文件所在路徑下創建子目錄

在一些圖像處理或者數據處理時，需要給計算返回的數據指定一個存儲路徑，如果直接以被處理的文件所在路徑下，並以其名命名自動生成一個文件夾，挺方便的，做法如下;

/* create subfolder for results saving.

   - Email:  [email protected]
   - Address: Computer Vision and Remote Sensing(CVRS) Lab, Wuhan University.
 */

#ifndef CREATE_SUBFOLDER_H
#define CREATE_SUBFOLDER_H
#pragma once
#include 
#include   
#include  
#include 

using namespace std;

class CreateSubfolder
{
public:
    CreateSubfolder(){}
    ~CreateSubfolder(){}

public:
    /*
       Create a subfolder according to the full-path of the input filepathh
        - filepath: full path, input
        - subfolder: created folder, output
        - filename: name of the input file, output
    */
    static void creatSubfolderViaFname( 
        char* filepath, char* subfolder, char* filename );
};

#endif // CREATE_SUBFOLDER_H

#include "CreateSubfolder.h"

void CreateSubfolder::creatSubfolderViaFname( 
    char* filepath, char* subfolder, char* filename )
{
    char drive[_MAX_DRIVE];
    char dir[_MAX_DIR];
    char fname[_MAX_FNAME];
    char ext[_MAX_EXT];

    _splitpath(filepath, drive, dir, fname, ext);
    char* subDir = new char[_MAX_DIR];
    sprintf(subDir, "%s\%s\\", dir, fname);
    sprintf(subfolder, "%s\%s", drive, subDir);
    _mkdir(subfolder);

    sprintf(filename, "%s", fname);

    delete[] subDir;
}

比如，下面的例子，對一張圖片摳出每個單獨的圖形，並存在該文件夾下：

運行完就是這效果：

（圖像處理的代碼很簡單，就不公布啦~）