缩进练习

Question

我正在输入家庭作业问题，我想要一种非常具体的格式，但我不知道从哪里开始。我希望练习编号排列在一列中，然后问题和答案与另一“列”对齐。为了了解我的意思，这个简单的代码可以工作：

\documentclass{article}

\begin{document}
\begin{tabular}{l l}
    5.  & This is the question          \\
        & This is where the answer goes \\

    11. & Another Questions             \\
        & Another Answer                
\end{tabular}
\end{document}

这看起来就是我想要的，但把整个作业放在表格环境中并担心对齐字符等很烦人。我真正想要的是一个可以指定练习编号的环境，它会为问题和答案创建适当的布局。这可能吗？谢谢！

Answer 1

有很多方法可以做到这一点。一个简单的方法就是使用enumerate环境

\begin{enumerate}
  \item[5] This is the question.
  \item[] This is where the answer goes
\end{enumerate}

或者也许您想要自己的环境；我在下面发布了几个不同的选项 - 任您挑选，或者基于其中一个构建一个。

\documentclass{article}
\usepackage{calc}

\newcommand{\question}[1]{\item[#1]}
\newcommand{\answer}{\item[]}
\newenvironment{questionandanswer}[2]{\enumerate\setcounter{enumi}{#2-1}\item#1\item[]}{\endenumerate}
\newenvironment{anotherapproach}{\enumerate}{\endenumerate}


\begin{document}

\begin{questionandanswer}{This is the question.}{5}
  This is where the answer goes
\end{questionandanswer}

\begin{anotherapproach}
  \question{5} This is the question.
  \answer This is where the answer goes
\end{anotherapproach}

\begin{enumerate}
  \item[5] This is the question.
  \item[] This is where the answer goes
\end{enumerate}
\end{document}

如果你想改变环境的缩进enumerate，那么enumitem包是最明智的做法：

\documentclass{article}
\usepackage{calc}
\usepackage{enumitem}
\setlist[enumerate]{leftmargin=*}

Answer 2

您可以使用enumerate环境；可选参数\item允许您分配所需的标签：

\documentclass{article}
\usepackage[nopar]{lipsum}% just to generate text for the example

\begin{document}

\begin{enumerate}
\item This is the question.

And this is where the question goes. \lipsum[2]
\item[11.] This is another question.

And this is where the question goes. \lipsum[4]
\end{enumerate}

\end{document}

Answer 3

如果您对标签之间的间距有特别要求，那么从 Gonzalo 的答案中复制并进行适当修改的以下代码对我来说看起来不错：

\documentclass{article}
\usepackage{enumitem}%provides the key labelsep

\begin{document}

\begin{enumerate}[labelsep=*]
\item[5.] This is the question.

And this is where the question goes. I use \texttt{labelsep}=*
\item[11.] This is another question.

And this is where the question goes. I use \texttt{labelsep}=*
\end{enumerate}

\begin{enumerate}
\item[5.] This is the question.

And this is where the question goes. No \texttt{labelsep}=*
\item[11.] This is another question.

And this is where the question goes. No \texttt{labelsep}=*
\end{enumerate}


\end{document}

输出：