VC判断目录是否存在

VC判断目录是否存在，如果不存在则创建新目录：

// Test Whether the dir exist

CString m_dir;

if (m_dir.Right(1) == “\\”)

m_dir = m_dir.Left(m_dir.GetLength()-1);

if (GetFileAttributes(m_dir) == FILE_ATTRIBUTE_DIRECTORY)

return TURE;

else

CreateAllDirectory(m_dir);

// Function CreateAllDirectory

// recursive function

void CreateAllDirectory(CString Dir)

{

if (Dir.Right(1) == “\\”)

Dir = Dir.Left(Dir.GetLength()-1);

if (GetFileAttributes == FILE_ATTRIBUTE_DIRECTORY)

return;

else if (GetFileAttributes(Dir) != -1)

{

if (DeleteFile(Dir)) // delete the file with the same name

if (CreateDirectory(Dir, NULL))

return;

MessageBox(_T(“Can not create directory for captured pictures”), NULL, MB_OK);

}

int n = Dir.ReverseFind(‘\\’);

CreateAllDirectory(Dir.Left(n));

if (!CreateDirectory(Dir, NULL))

MessageBox(_T(“Can not create directory for captured pictures”), NULL, MB_OK);

}

判断Dir中某个文件是否存在,还可以通过FileFind来实现:

BOOL FileExist(CString strFileName)
{
CFileFind fFind;
return fFind.FindFile(strFileName);
}