第一種：

呼叫MFC封裝好的介面函式，主要會用到 

PathIsDirectory //判斷是否存在

::CreateDirectory //建立

	#include "shlwapi.h"
	#pragma comment(lib,"shlwapi.lib")
	#include <afx.h>

	CString path = "../../../STL/stl2";
	if (!PathIsDirectory(path))
	{
		::CreateDirectory(path, 0);
	}

編寫C/C++函式實現該功能

例如：

#include <io.h>
#include <direct.h>
#define PATH_DELIMITER '\\'
 

bool createDirectory(const std::string folder) {
	std::string folder_builder;
	std::string sub;
	sub.reserve(folder.size());
	for (auto it = folder.begin(); it != folder.end(); ++it)
	{
		//cout << *(folder.end()-1) << endl;
		const char c = *it;
		sub.push_back(c);
		if (c == PATH_DELIMITER || it == folder.end() - 1) 
		{
			folder_builder.append(sub);
			if (0 != ::_access(folder_builder.c_str(), 0)) 
			{
				// this folder not exist
				if (0 != ::_mkdir(folder_builder.c_str())) 
				{
					// create failed
					return false;
				}
			}
			sub.clear();
		}
	}
	return true;
}
 

const std::string path2 = "..\\..\\..\\STL\\stl2";
createDirectory(path2);

呼叫DOS命令

例如：

	#include <stdlib.h>

        system("md stl2");