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在文档结束之前发送文本

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在文档结束之前发送文本

我正在编写仅包含练习的文档，并且想为一些练习添加一些提示。

我想要的是提示在练习本身中指定但显示在文档末尾。

我尝试使用\atEndDocument钩子但是没有作用。

以下是我想写的一个简短示例

\documentclass[14pt,a4paper]{extarticle}    
\usepackage{pgfpages}
\pgfpagesuselayout{2 on 1}[a4paper,landscape,border shrink=7mm] 

\begin{document}
Exercise 1 : 
Solve the following equation $x^2+1=2$
\hint{Exercise 1 : Don't forget that two solutions exist}

Exercise 2 :
Derivate the following function $f:x \to \cos(x^2)$
\hint{Exercise 2 : The result is not $-\sin(x^2)$ }
\end{document}

答案1

只是为了好玩：此解决方案将提示保存为宏以供以后扩展。

\documentclass{article}

\newcounter{nhint}
\newcommand{\hint}[1]% #1 = paragraph
{\stepcounter{nhint}\expandafter\gdef\csname hint\thenhint\endcsname{#1}}% global, just in case

\begin{document}
Exercise 1 : 
Solve the following equation $x^2+1=2$
\hint{Exercise 1 : Don't forget that two solutions exists}%

Exercise 2 :
Derivate the following function $f:x \to \cos(x^2)$
\hint{Exercise 2 : The result is not simply $-\sin(x^2)$ }%

{\section{Hints}}% turn off \@afterheading

\edef\total{\arabic{nhint}}% or \countdef\total 0 \total=\value{nhint}%
\setcounter{nhint}{0}%
\loop\ifnum \value{nhint}<\total
  \stepcounter{nhint}%
  \csname hint\thenhint\endcsname
  \par
\repeat

\end{document}

该解决方案将提示存储在保存箱中。

\documentclass{article}

\newsavebox{\hints}
\setbox\hints=\vbox{}

\newcommand{\hint}[1]% #1 = paragraph
{\global\setbox\hints=\vbox{\unvbox\hints
  \parindent=0pt% set up formatting here
  \strut#1\strut\par}%
}

\begin{document}
Exercise 1 : 
Solve the following equation $x^2+1=2$
\hint{Exercise 1 : Don't forget that two solutions exists}

Exercise 2 :
Derivate the following function $f:x \to \cos(x^2)$
\hint{Exercise 2 : The result is not simply $-\sin(x^2)$ }

\section{Hints}

\unvbox\hints

\end{document}

答案2

使用宏的简单工作示例\AtEndDocument：

\documentclass{article}

\AtEndDocument{\vfill}
\newcommand{\hint}[1]{\AtEndDocument{\par #1}}
\begin{document}
Exercise 1 : 
Solve the following equation $x^2+1=2$
\hint{Exercise 1 : Don't forget that two solutions exists}

Exercise 2 :
Derivate the following function $f:x \to \cos(x^2)$
\hint{Exercise 2 : The result is not simply $-\sin(x^2)$ }

\end{document}

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