使用Windows API来判断

/** @brief 是否有文件的读写权限
*/
bool CanReadWriteFile(const CString& strPathFile )
{HANDLE hOpenFile = ::CreateFile(strPathFile,GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL, NULL);if (INVALID_HANDLE_VALUE == hOpenFile){return false;}::CloseHandle(hOpenFile);hOpenFile = NULL;return true;
}/** @brief 是否有文件夹的读写权限
*/
bool CanReadWriteFolder(const CString& strFolder)
{HANDLE hOpenDir = ::CreateFile(strFolder,GENERIC_READ | GENERIC_WRITE,FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL);if (INVALID_HANDLE_VALUE == hOpenDir){return false;}::CloseHandle(hOpenDir);hOpenDir = NULL;return true;
}