%%
%% The LaTeX Companion, 3ed
%%
%% Example 4-1-3 on page I-256 in "Customizing the \protect \nxLenv  {enumerate} list environment".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See https://www.latex-project.org/lppl.txt for details.
%%

\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{111.0pt}
%StartShownPreambleCommands
\renewcommand\labelenumi{\S\theenumi.} \labelformat{enumi}{\S#1}
%StopShownPreambleCommands

\begin{document}
\begin{enumerate}
 \item \label{w1} item of list \item \label{w2} item of list
\end{enumerate}
w1=\ref{w1}  w2=\ref{w2}
\end{document}