练习包和超链接练习/解决方案：隐藏空的解决方案？

Question

我正在使用练习包来管理练习和答案。在下面的 MWE 中，每个练习的开头都会创建一个指向相关答案的超链接。如果没有解决方案，是否可以删除前一个超链接？（请参阅下面的练习 2 中的示例）。

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{hyperref}
\hypersetup{breaklinks = true,
            unicode    = true,
            colorlinks = true,
            urlcolor   = red,
            linkcolor  = red}
\usepackage[lastexercise]{exercise}
%
\renewcommand{\ExerciseName}{Exercice}
\renewcommand{\ExerciseHeader}{%
    \noindent
    \textbf{
       \ExerciseName\quad\ExerciseHeaderNB\textit{\ExerciseHeaderTitle}\quad}%
    }
%Environnement exercice
\newenvironment{exo}[1][\unskip]{%
\begin{Exercise}[title={#1},label={\the\value{Exercise}}]
\hfill \texttt{\refAnswer{\ExerciseLabel}}


}{\end{Exercise}}

\newenvironment{sol}
{\begin{Answer}[ref=\ExerciseLabel]
}
{\end{Answer}
}
%%%%%%%%%%%%
\begin{document}

\begin{exo}
A
\end{exo}

\begin{sol}
ABCDE
\end{sol}

\begin{exo}
A
\end{exo}

\shipoutAnswer
\end{document}

Answer 1

您的环境exo包含超链接。如果您不介意使用新环境，只需定义一个不带超链接的新环境即可

\newenvironment{nhexo}[1][\unskip]{%
    \begin{Exercise}[title={#1},label={\the\value{Exercise}}]


    }{\end{Exercise}}

编辑的MWE：

\documentclass[11pt]{article}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage{lmodern}
\usepackage{hyperref}
\hypersetup{breaklinks = true,
            unicode    = true,
            colorlinks = true,
            urlcolor   = red,
            linkcolor  = red}
\usepackage[lastexercise]{exercise}
%
\renewcommand{\ExerciseName}{Exercice}
\renewcommand{\ExerciseHeader}{%
    \noindent
    \textbf{
       \ExerciseName\quad\ExerciseHeaderNB\textit{\ExerciseHeaderTitle}\quad}%
    }
%Environment exercise
\newenvironment{exo}[1][\unskip]{%
\begin{Exercise}[title={#1},label={\the\value{Exercise}}]
\hfill \texttt{\refAnswer{\ExerciseLabel}}


}{\end{Exercise}}

\newenvironment{nhexo}[1][\unskip]{%
    \begin{Exercise}[title={#1},label={\the\value{Exercise}}]


    }{\end{Exercise}}

\newenvironment{sol}
{\begin{Answer}[ref=\ExerciseLabel]
}
{\end{Answer}
}
%%%%%%%%%%%%
\begin{document}

\begin{exo}
A
\end{exo}

\begin{sol}
ABCDE
\end{sol}

\begin{nhexo}
A
\end{nhexo}

\shipoutAnswer
\end{document}