黏贴以下代码即可:

 TCHAR szBuffer[MAX_PATH] = {0};  
 BROWSEINFO bi;  
 ZeroMemory(&bi,sizeof(BROWSEINFO));  
 bi.hwndOwner = NULL;  
 bi.pszDisplayName = szBuffer;  
 bi.lpszTitle = _T("从下面选择文件或文件夹:");  
 bi.ulFlags = BIF_BROWSEINCLUDEFILES;  
 LPITEMIDLIST idl = SHBrowseForFolder(&bi);  
 if (NULL == idl)  
 {  
  return;  
 }  
 SHGetPathFromIDList(idl,szBuffer);

MFC中如何弹出选择文件/文件夹对话框(C++)