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多页环境中的单独页码编号，每个页码的总页数

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多页环境中的单独页码编号，每个页码的总页数

我尝试使用 LaTeX 排版的文档可能包含多页环境。此类环境有自己的页码，从 1 开始。但环境的第一页必须是总环境页数。我知道在文档中只有一个环境时该怎么做。但当我在具有不同页数的文档中使用多个环境时会出现问题。我知道为什么会发生这种情况（这些环境使用一个计数器）。如果事先不知道文档中的环境数量，我该如何更改这种情况？

\documentclass{article}
\usepackage{blindtext}
\usepackage{totcount}
\usepackage{tikz}
\usepackage{eso-pic}
\usepackage{calc}

\newcounter{ccnt}%current page counter    
\newcounter{fcnt}%first page counter
\newtotcounter{tcnt}%total page counter

\newenvironment{elementlist}%
  {\clearpage
   \pagestyle{empty}
   \Environmenttrue
   \FirstBackgroundtrue
   \AddToShipoutPicture{\Background}
   \linespread{2}\selectfont
   \enlargethispage{-3\baselineskip}
   \sffamily\slshape\selectfont
   \setcounter{fcnt}{\thepage}}
  {\setcounter{tcnt}{\value{page}-\value{fcnt}+1}
   \clearpage
   \ClearShipoutPicture
   \pagestyle{plain}}

\newif\ifEnvironment
\newif\ifFirstBackground

\newcommand\Background
  {\ifFirstBackground
     \formfirst
     \global\FirstBackgroundfalse
   \else
     \formposterior
   \fi
  }

\newcommand\formfirst{
 \begin{tikzpicture}[overlay]
  \setcounter{ccnt}{\value{page}-\value{fcnt}+1}
  \ifEnvironment
    \draw (2.0, 1.5) node[align=center,text width=4.5cm] {\total{tcnt}};
    \draw (19.5, 1.5) node[align=center,text width=4.5cm] {\arabic{ccnt}};
  \fi
 \end{tikzpicture}}

\newcommand\formposterior{
 \begin{tikzpicture}[overlay]
  \setcounter{ccnt}{\value{page}-\value{fcnt}+1}
  \ifEnvironment
    \draw (19.5, 1.5) node[align=center,text width=4.5cm] {\arabic{ccnt}};
  \fi
 \end{tikzpicture}}

\begin{document}
\Blindtext

 \begin{elementlist}
 \Blindtext
 \end{elementlist}

\Blindtext 

 \begin{elementlist}
 \Blindtext
 \Blindtext
\end{elementlist}

\end{document}

答案1

您可以使用xcntperchap并跟踪每个环境的页面数量。

稍后，调用\ObtainTrackedValueExp{elistcntr}{page}，首先提取页数。

\documentclass{article}
\usepackage{blindtext}
\usepackage{totcount}
\usepackage{tikz}
\usepackage{eso-pic}
\usepackage{calc}

\newcounter{elistcntr}

\newcounter{ccnt}%current page counter    
\newcounter{fcnt}%first page counter
\newtotcounter{tcnt}%total page counter

\usepackage{xcntperchap}


\RegisterTrackCounter{elistcntr}{page}




\newenvironment{elementlist}{%
  \clearpage
  \pagestyle{empty}
  \Environmenttrue
  \FirstBackgroundtrue
  \refstepcounter{elistcntr}%
  \clearpage
  \AddToShipoutPicture{\Background}
  \linespread{2}\selectfont
  \enlargethispage{-3\baselineskip}
  \sffamily\slshape\selectfont
  \setcounter{fcnt}{\thepage}
}{%
  \setcounter{tcnt}{\value{page}-\value{fcnt}+1}
  \clearpage%
  \refstepcounter{elistcntr}%
  \ClearShipoutPicture
  \pagestyle{plain}%
  \clearpage
}

\newif\ifEnvironment
\newif\ifFirstBackground

\newcommand\Background
  {\ifFirstBackground
     \formfirst
     \global\FirstBackgroundfalse
   \else
     \formposterior
   \fi
  }

\newcommand\formfirst{
 \begin{tikzpicture}[overlay]
  \setcounter{ccnt}{\value{page}-\value{fcnt}+1}
  \ifEnvironment
    \draw (2.0, 1.5) node[align=center,text width=4.5cm] {\ObtainTrackedValueExp{elistcntr}{page}};
    \draw (19.5, 1.5) node[align=center,text width=4.5cm] {\arabic{ccnt}};
  \fi
 \end{tikzpicture}}

\newcommand\formposterior{
 \begin{tikzpicture}[overlay]
  \setcounter{ccnt}{\value{page}-\value{fcnt}+1}
  \ifEnvironment
  \draw (19.5, 1.5) node[align=center,text width=4.5cm] {\arabic{ccnt}};
  \fi
 \end{tikzpicture}}

\begin{document}
\Blindtext

\begin{elementlist}
  \Blindtext
\end{elementlist}

\Blindtext 

\begin{elementlist}
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
\end{elementlist}

\Blindtext 

\begin{elementlist}
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
\end{elementlist}

\Blindtext

\begin{elementlist}
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
  \Blindtext
\end{elementlist}


\end{document}

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