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如何在考试课堂上制作多项选择题的答案？

tag-icon • tag-icon environments exam answers
如何在考试课堂上制作多项选择题的答案？ 
       \documentclass{exam}
        \begin{document}
        \begin{questions}
        \question Sample Question 1
        \begin{choices}
        \choice Option1
        \choice Option2
        \choice Option3
        \correctchoice Option4
        \end{choices}
        \question Sample Question 2
        \begin{choices}
        \choice Option1
        \choice Option2
        \correctchoice Option3
        \choice Option4
        \end{choices}
        \end{questions}
        \end{document}

问题是在格式的所有问题末尾生成答案

1.Ans:(D)
2.Ans:(C)

等等。这种问题已经被问过几次了，但到目前为止还没有令人满意的答案。如果有人能对此做出贡献，那就太好了。任何帮助都将不胜感激。

答案1

这个答案描述了两种解决方案。第一种解决方案将正确答案的数量/选项与答案一起输出，第二种解决方案仅显示数字（并在一行中收集几个正确选项）。

列出正确答案及其编号

如下所示标记正确答案的文本（或者更确切地说，应该显示在答案列表中的部分）。

\CorrectAnswer{... answer ...}

此命令将答案与当前问题和选项编号一起存储。您必须像

\begin{choices}
\choice Option1
\choice Option2
\choice Option3
\correctchoice \CorrectAnswer{Option4} % before and after \CorrectAnswer{} there may be other text which will appear only here
\end{choices}

在环境之后的某个地方questions，可以通过以下方式打印答案

\printAnswers

每个答案的格式由

\printAnswer{question number}{choice number}{answer}

您必须在序言中添加以下定义。

\documentclass{exam}
\newcommand\Answers{} % Accumulates triples {{question number}{choice number}{answer}}
\newcommand\CorrectAnswer[1]{% {answer} % adds new triple to \Answers
  \xdef\Answers{\Answers{{\arabic{question}}{\Alph{choice}}{#1}}}%
  #1
}
\newcommand\printAnswer[3]{% {question number}{choice number}{answer} % format answer
  \par\noindent #1. Ans: (#2) #3\par
}
\newcommand\printAnswers{% do \printAnswer for every answer in \Answers
  \expandafter\printAnswersX\Answers{}%
}
\newcommand\printAnswersX[1]{% {{qu. number}{ch. number}{answer}} % auxilary command implementing loop
  \def\tmp{#1}%
  \ifx\tmp\empty
    \let\tmp\relax
  \else
    \def\tmp{\printAnswer#1\printAnswersX}
  \fi
  \tmp  
}

在此处输入图片描述

\documentclass{exam}
\newcommand\Answers{} % Accumulates triples {{question number}{choice number}{answer}}
\newcommand\CorrectAnswer[1]{% {answer} % adds new triple to \Answers
  \xdef\Answers{\Answers{{\arabic{question}}{\Alph{choice}}{#1}}}%
  #1
}
\newcommand\printAnswer[3]{% {question number}{choice number}{answer} % format answer
  \par\noindent #1. Ans: (#2) #3\par
}
\newcommand\printAnswers{% do \printAnswer for every answer in \Answers
  \expandafter\printAnswersX\Answers{}%
}
\newcommand\printAnswersX[1]{% {{qu. number}{ch. number}{answer}} % auxilary command implementing loop
  \def\tmp{#1}%
  \ifx\tmp\empty
    \let\tmp\relax
  \else
    \def\tmp{\printAnswer#1\printAnswersX}
  \fi
  \tmp  
}
\begin{document}
\begin{questions}
  \question Sample Question 1
  \begin{choices}
    \choice Option1
    \choice Option2
    \choice Option3
    \correctchoice \CorrectAnswer{Option4}
  \end{choices}
  \question Sample Question 2
  \begin{oneparchoices}
    \choice Option1
    \choice Option2
    \correctchoice \CorrectAnswer{Option3}
    \choice Option4
  \end{oneparchoices}
\end{questions}

\printAnswers
\end{document}

仅列出选择

将以下几行添加到你的序言中：

\documentclass{exam}
\usepackage{xpatch}
\makeatletter
\xpatchcmd\choices{\fi\do@choice@pageinfo}{\fi\CorrectAnswer\do@choice@pageinfo}{}{}
\xpatchcmd\oneparchoices{\fi\ifnum}{\fi\CorrectAnswer\ifnum}{}{}
\makeatother
\newcommand\Answers{} % Accumulates pairs {{question number}{choice number}}
\newcommand\CorrectAnswer{% {answer} % adds new pair to \Answers
  \xdef\Answers{\Answers{{\arabic{question}}{\Alph{choice}}}}%
}
\newcommand\printAnswer[2]{% {question number}{choice number}{answer} % format answer
  \ifnum#1=\lastQuestion
    , (#2)% additional correct answer
  \else
    \par\noindent #1. Ans: (#2)% First correct answer of question
  \fi
  \def\lastQuestion{#1}%  
}
\newcommand\printAnswers{% do \printAnswer for every answer in \Answers
  \def\lastQuestion{0}%
  \expandafter\printAnswersX\Answers{}%
  \par
}
\newcommand\printAnswersX[1]{% {{qu. number}{ch. number}} % auxilary command implementing loop
  \def\tmp{#1}%
  \ifx\tmp\empty
    \let\tmp\relax
  \else
    \def\tmp{\printAnswer#1\printAnswersX}%
  \fi
  \tmp  
}

在文档末尾，该命令\printAnswers将生成答案列表。

在此处输入图片描述

\documentclass{exam}
\usepackage{xpatch}
\makeatletter
\xpatchcmd\choices{\fi\do@choice@pageinfo}{\fi\CorrectAnswer\do@choice@pageinfo}{}{}
\xpatchcmd\oneparchoices{\fi\ifnum}{\fi\CorrectAnswer\ifnum}{}{}
\makeatother
\newcommand\Answers{} % Accumulates pairs {{question number}{choice number}}
\newcommand\CorrectAnswer{% {answer} % adds new pair to \Answers
  \xdef\Answers{\Answers{{\arabic{question}}{\Alph{choice}}}}%
}
\newcommand\printAnswer[2]{% {question number}{choice number}{answer} % format answer
  \ifnum#1=\lastQuestion
    , (#2)% additional correct answer
  \else
    \par\noindent #1. Ans: (#2)% First correct answer of question
  \fi
  \def\lastQuestion{#1}%  
}
\newcommand\printAnswers{% do \printAnswer for every answer in \Answers
  \def\lastQuestion{0}%
  \expandafter\printAnswersX\Answers{}%
  \par
}
\newcommand\printAnswersX[1]{% {{qu. number}{ch. number}} % auxilary command implementing loop
  \def\tmp{#1}%
  \ifx\tmp\empty
    \let\tmp\relax
  \else
    \def\tmp{\printAnswer#1\printAnswersX}%
  \fi
  \tmp  
}
\begin{document}
\begin{questions}
  \question Sample Question 1
  \begin{choices}
    \choice Option1
    \choice Option2
    \choice Option3
    \correctchoice Option4
  \end{choices}
  \question Sample Question 2
  \begin{oneparchoices}
    \choice Option1
    \correctchoice Option2
    \correctchoice Option3
    \correctchoice Option4
  \end{oneparchoices}
\end{questions}

\printAnswers
\end{document}

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