我正在写一个教程，每个部分都有一些练习。我还有一个附录，其中包含每个部分的附加练习。
但我希望对每个部分的附加练习进行编号，以便他们继续对每个部分的练习进行编号。
Mico 建议一个办法，部分可行。但当我点击练习 2.3 时，系统却将我带到练习 1.3。
我在标题中包含了我使用的所有包，但可能并不是所有包都是需要的。
\documentclass[11pt]{article}
\newcounter{counterE} % for use in Appendix B
\usepackage{amsthm}
\usepackage[pagebackref=true, colorlinks=true, linkcolor=blue, citecolor=blue, linkcolor=blue, anchorcolor=red, urlcolor=blue]{hyperref}
\usepackage{url, amsmath,enumerate,fancyhdr,amssymb, amsthm,
pstricks, epsf, lscape, ifpdf, graphicx, float}
\usepackage[capitalize]{cleveref}
\newtheorem{Exercise}{Exercise}[section]
\begin{document}
\section{First section}
\label{first-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-first}.
\section{Second section} \label{second-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-second}.
Referencing Exercise \ref{exer-13}.
Referencing Exercise \ref{exer-23}.
\newpage
\appendix
\renewcommand\theExercise{\arabic{counterE}.\arabic{Exercise}}
% change the prefix variable to "counterE"
\section{Supplemental materials}
\section{Additional exercises}
\subsection{Additional exercises for \cref{first-section}}
\label{exer-app-first}
\setcounter{counterE}{1} % number of first section
\setcounter{Exercise}{2} % number of last exercise in first section
\begin{Exercise} \label{exer-13}
This exercise should be called ``Exercise 1.3.''
\end{Exercise}
\begin{Exercise} \label{exer-14}
This exercise should be called ``Exercise 1.4.''
\end{Exercise}
\newpage
\subsection{ Additional exercises for \cref{second-section}}
\label{exer-app-second}
\setcounter{counterE}{2} % number of second section
\setcounter{Exercise}{2} % number of last exercise in second section
\begin{Exercise} \label{exer-23}
This exercise should be called ``Exercise 2.3.''
\end{Exercise}
\begin{Exercise} \label{exer-24}
This exercise should be called ``Exercise 2.4.''
\end{Exercise}
\end{document}
答案1
像这样吗？
\documentclass[11pt]{article}
\newcounter{counterE} % for use in Appendix B
\usepackage{amsthm}
\theoremstyle{definition} % upright lettering
\usepackage[capitalize]{cleveref}
\newtheorem{Exercise}{Exercise}[section]
\begin{document}
\section{First section}
\label{first-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-first}.
\section{Second section} \label{second-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-second}.
\appendix
\renewcommand\theExercise{\arabic{counterE}.\arabic{Exercise}}
% change the prefix variable to "counterE"
\section{Supplemental materials}
\section{Additional exercises}
\subsection{Additional exercises for \cref{first-section}}
\label{exer-app-first}
\setcounter{counterE}{1} % number of first section
\setcounter{Exercise}{2} % number of last exercise in first section
\begin{Exercise}
This exercise should be called ``Exercise 1.3.''
\end{Exercise}
\begin{Exercise}
This exercise should be called ``Exercise 1.4.''
\end{Exercise}
\subsection{ Additional exercises for \cref{second-section}}
\label{exer-app-second}
\setcounter{counterE}{2} % number of second section
\setcounter{Exercise}{2} % number of last exercise in second section
\begin{Exercise}
This exercise should be called ``Exercise 2.3.''
\end{Exercise}
\begin{Exercise}
This exercise should be called ``Exercise 2.4.''
\end{Exercise}
\end{document}
附录回答 OP 的后续查询。首先，我们要注意的是，OP 的后续查询中提出的问题主要取决于以下两个条件，两者都不是原始查询中已说明。首先，该hyperref包正在被使用。其次，正在创建对附录 B 中的练习环境的交叉引用。
那么，原始作者的问题与众所周知的hyperref包在创建超链接时偶尔无法涉及相关计数器变量有关。要解决这个问题，需要（重新）定义隐藏的计数器H，该计数器会自动与交叉引用核心的计数器相关联。以下代码块显示了如何针对手头的示例代码完成此操作。
\documentclass[11pt]{article}
\usepackage{amsthm}
\theoremstyle{definition} % upright lettering
\usepackage[colorlinks,allcolors=blue]{hyperref}
\usepackage[capitalize,nameinlink]{cleveref}
\newcounter{counterE} % for use in Appendix B
\newtheorem{Exercise}{Exercise}[section]
\crefname{Exercise}{Exercise}{Exercises}
\begin{document}
\noindent
Cross-references to Exercises \labelcref{ex_B_aa}, \labelcref{ex_B_ab}, \labelcref{ex_B_ba}, and \labelcref{ex_B_bb}.
\section{First section}
\label{first-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-first}.
\section{Second section} \label{second-section}
\begin{Exercise}
This is the first exercise in this section.
\end{Exercise}
\begin{Exercise}
This is the second exercise in this section.
\end{Exercise}
Additional exercises for this section are in \cref{exer-app-second}.
\appendix
\renewcommand\theExercise{\arabic{counterE}.\arabic{Exercise}} % change the prefix variable to "counterE"
\renewcommand\theHExercise{\arabic{subsection}.\arabic{Exercise}}
\section{Supplemental materials}
\section{Additional exercises}
\subsection{Additional exercises for \cref{first-section}}
\label{exer-app-first}
\setcounter{counterE}{1} % number of first section
\setcounter{Exercise}{2} % number of last exercise in first section
\begin{Exercise} \label{ex_B_aa}
This exercise should be called ``Exercise 1.3.''
\end{Exercise}
\begin{Exercise} \label{ex_B_ab}
This exercise should be called ``Exercise 1.4.''
\end{Exercise}
\subsection{Additional exercises for \cref{second-section}}
\label{exer-app-second}
\setcounter{counterE}{2} % number of second section
\setcounter{Exercise}{2} % number of last exercise in second section
\begin{Exercise} \label{ex_B_ba}
This exercise should be called ``Exercise 2.3.''
\end{Exercise}
\begin{Exercise} \label{ex_B_bb}
This exercise should be called ``Exercise 2.4.''
\end{Exercise}
\end{document}