Create directories and subdirectories circularly

void RecursiveDirectory(std::wstring wstrDir)
{
    if (wstrDir.length() <= 3)// It's the root directory , No need to create a directory
    {
        return;
    }
    if (wstrDir[wstrDir.length() - 1] == L'\\')
    {
        wstrDir.erase(wstrDir.end() - 1);
    }
    // Modify file properties
    WIN32_FIND_DATA wfd;
    HANDLE hFind = FindFirstFile(wstrDir.c_str(), &wfd); // lookup
    if (hFind != INVALID_HANDLE_VALUE)
    {
        FindClose(hFind);
        if (wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
            return;
    }
    // Failed to create the local directory of the current directory
    if (CreateDirectory(wstrDir.c_str(), NULL) == false)
    {
        // Back to a higher directory
        std::wstring wstrNewDir = wstrDir;
        while (wstrNewDir[wstrNewDir.length() - 1] != L'\\')     // Retreat to the previous directory of the current directory
        {
            wstrNewDir.erase(wstrNewDir.length() - 1);
        }
        // delete '\' 
        wstrNewDir.erase(wstrNewDir.length() - 1); // delete '\' 

        // Recursion into
        RecursiveDirectory(wstrNewDir);  // Recursion of this function , Then create a directory
        // After recursive exit, create the directory that failed before
        CreateDirectory(wstrDir.c_str(), NULL);  // Recursively returns , Create a directory on the existing directory
    }
    // Multi level directory created successfully
}