做这样的事情:

BOOL DirectoryExists(LPCTSTR szPath)
{
  DWORD dwAttrib = GetFileAttributes(szPath);

  return (dwAttrib != INVALID_FILE_ATTRIBUTES && 
         (dwAttrib & FILE_ATTRIBUTE_DIRECTORY));
}

GetFileAttributes() 方法包含在 Kernel32 中.dll.

The GetFileAttributes() method is included in Kernel32.dll.