我设法更改了枚举中的标签，但当我使用 a 时\label，它\ref总是给我括号，如 ()REQ-2.0-C。我该如何去掉括号？
%begin requirement listing definition
\renewcommand{\labelenumi}{\bfseries{\arabic{enumi}}}
\renewcommand{\labelenumii}{\arabic{enumi}.\arabic{enumii}}
\renewcommand{\labelenumiii}{REQ-\arabic{enumi}.\arabic{enumii}-\Alph{enumiii}}
\renewcommand{\theenumi}{}
\renewcommand{\theenumii}{}
\renewcommand{\theenumiii}{REQ-\arabic{enumi}.\arabic{enumii}-\Alph{enumiii}}
\makeatletter
\let\@noitemerr\relax
\show\@currentlabel
\makeatother
%end requirement listing definition