如何获得正确的嵌套枚举编号？

Question

我有以下 MWE，它有嵌套编号列表。我试图引用一个特定的项目。但是，在下面给出的 MWE 中，它只给出了子列表编号 3，而不是 1.3。缺少父列表编号。如何获取带有父编号的整个项目编号？

平均能量损失

\documentclass{article}
\usepackage{enumitem}
\begin{document}
\section{Lorem ipsum}
\begin{enumerate}[label={\textbf{\small{~\protect{\theenumi}}}},leftmargin=*]
    \item Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
    \begin{enumerate}[label={\arabic*.}]
        \item Aenean commodo ligula eget dolor.
        \item Aenean massa.
        \item \label{abc} Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. 
    \end{enumerate}
    \item Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem.
    \begin{enumerate}[label={\arabic*.}]
        \item Nulla consequat massa quis enim.
        \item Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu.
        \begin{enumerate}
            \item In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo.
            \item Nullam dictum felis eu pede mollis pretium.
            \item Integer tincidunt~\ref{abc}
            \item Cras dapibus.
        \end{enumerate}
    \end{enumerate}
    \item Vivamus elementum semper nisi.
    \begin{enumerate}[label={\arabic*.}]
        \item Aenean vulputate eleifend tellus.
        \item Aenean leo ligula, porttitor eu, consequat vitae, eleifend ac, enim.
        \item Aliquam lorem ante, dapibus in, viverra quis, feugiat a, tellus.
    \end{enumerate}
\end{enumerate}
\end{document}

Answer 1

枚举列表的参考格式是默认使用的——这就是显示而不是的\arabic原因。31.3

用作ref={\arabic{enumi}.\arabic*}第二级列表的选项，这明确形成了第一级（ ）和第二级（\theenumi \arabic{enumi}`）enumerate的组合引用。\arabic{enumi}\arabic*). If you prefer the bold version of the first level numbers, then sayinstead of

由于每隔一个级别都要执行一次此操作，因此使用\setlist[enumerate,2]宏会方便得多。

\documentclass{article}
\usepackage{enumitem}
\begin{document}

\setlist[enumerate,2]{label={\arabic*.},ref={\arabic{enumi}.\arabic*}}
\section{Lorem ipsum}
\begin{enumerate}[label={\textbf{\small{~\protect{\theenumi}}}},leftmargin=*]
    \item Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
    \begin{enumerate}
        \item Aenean commodo ligula eget dolor.
        \item Aenean massa.
        \item \label{abc} Cum sociis natoque penatibus et magnis dis parturient montes, nascetur ridiculus mus. 
    \end{enumerate}
    \item Donec quam felis, ultricies nec, pellentesque eu, pretium quis, sem.
    \begin{enumerate}
        \item Nulla consequat massa quis enim.
        \item Donec pede justo, fringilla vel, aliquet nec, vulputate eget, arcu.
        \begin{enumerate}
            \item In enim justo, rhoncus ut, imperdiet a, venenatis vitae, justo.
            \item Nullam dictum felis eu pede mollis pretium.
            \item Integer tincidunt~\ref{abc}
            \item Cras dapibus.
        \end{enumerate}
    \end{enumerate}
    \item Vivamus elementum semper nisi.
    \begin{enumerate}
        \item Aenean vulputate eleifend tellus.
        \item Aenean leo ligula, porttitor eu, consequat vitae, eleifend ac, enim.
        \item Aliquam lorem ante, dapibus in, viverra quis, feugiat a, tellus.
    \end{enumerate}
\end{enumerate}
\end{document}