我的文檔中有兩個計數器,counterA
並且counterB
.
我希望將\ref{}
文檔中的引用列印為1.a)
或2.
等,其中數字指的是counterA
,字母為counterB
。
是否可以?我該怎麼做?
\documentclass{article}
\begin{document}
\newcounter{counterA}
\setcounter{counterA}{0}
\newcounter{counterB}
\setcounter{counterB}{0}
\refstepcounter{counterA}
\refstepcounter{counterB}
\label{First_Label}
I get: \ref{Second_Label}. I would like \textbf{2.}\,b)
Vestibulum lectus metus, tincidunt at fermentum non, pellentesque at lorem. Vivamus nisl sem, tempor ac mi et, elementum feugiat justo. Pellentesque tristique consequat molestie.
\bigskip
\refstepcounter{counterA}
\refstepcounter{counterB}
\label{Second_Label}
I get: \ref{First_Label}. I would like \textbf{1.}\,a)
Morbi nec nibh nulla. Cras posuere erat vitae lacus convallis, ut consequat urna dignissim.
\end{document}
答案1
每次counterB
使用\newcounter
指令建立一個名為 的計數器變數時,LaTeX 都會設定一個名為 的宏,\p@counterB
該宏可用於在標籤上「新增」一些其他信息,以便建立交叉引用。即,你可以輸入
\makeatletter
\renewcommand\p@counterB{\thecounterA.}
\makeatother
將目前值的 LaTeX 表示形式counterA
加上 a.
前綴到 的值的 LaTeX 表示形式counterB
。
完整的 MWE:
\documentclass{article}
\newcounter{counterA}
\newcounter{counterB}
\renewcommand\thecounterA{\arabic{counterA}} % arabic numbering
\renewcommand\thecounterB{\alph{counterB})} % alphabetic numbering
\makeatletter
\renewcommand\p@counterB{\thecounterA.}
\makeatother
\begin{document}
% need to increment the counters via \refstepcounter
\refstepcounter{counterA} \label{refA}
\refstepcounter{counterB} \label{refB}
Here's a cross-reference to item \ref{refB}.
\end{document}
答案2
您可以使用以下命令:
\renewcommand{\thecounterB}{\textbf{\thecounterA}.\alph{counterB})}
這是一個完整的 MWE:
% arara: pdflatex
\documentclass{article}
\newcounter{counterA}
\setcounter{counterA}{0}
\newcounter{counterB}
\setcounter{counterB}{0}
\renewcommand{\thecounterB}{\textbf{\thecounterA}.\alph{counterB})}
\begin{document}
\refstepcounter{counterA}
\refstepcounter{counterB}
\label{First_Label}
I get: \ref{Second_Label}. I would like \textbf{2.}\,b)
Vestibulum lectus metus, tincidunt at fermentum non, pellentesque at lorem. Vivamus nisl sem, tempor ac mi et, elementum feugiat justo. Pellentesque tristique consequat molestie.
\bigskip
\refstepcounter{counterA}
\refstepcounter{counterB}
\label{Second_Label}
I get: \ref{First_Label}. I would like \textbf{1.}\,a)
Morbi nec nibh nulla. Cras posuere erat vitae lacus convallis, ut consequat urna dignissim.
\end{document}