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自定义标签，例如“R1”

tag-icon • tag-icon cross-referencing numbering
自定义标签，例如“R1”

我想要由连续编号和静态值（字符）组成的标签。例如 R1、R2、...

更具体地说，我想要一个需求列表，然后我可以在文本中将其引用为“R77”，“R4.12”等

我有一个定义定理

\newtheoremstyle{requirement}%
{12pt}% Space above
{10pt}% Space below
{}% Body font
{}% Indent amount
{\bfseries\large}% Theorem head font
{}% Punctuation after theorem head
{\newline}% Space after theorem head
{\thmname{#1}\thmnumber{ #2:}\thmnote{ #3}}% Theorem head spec

\theoremstyle{requirement}
\newtheorem{requirement}{Requirement}

\theoremstyle{requirement}
\newtheorem{subrequirement}{Requirement}[requirement]

这很管用，当我在文档中使用它时

\begin{requirement}[my requirement]
\label{sec:requirements.requirement8}
some text
\end{requirement}

我有一个编号整齐的标签，可以通过 引用\ref{...}。现在我希望该编号前面有一个字母“R”，而不是简单的数字。找不到解决此问题的选项。有什么建议吗？

期望的输出看起来会像这样：

Requirement R2: xyz
bla

...

As defined in R2 ...

答案1

只需添加

\renewcommand{\therequirement}{R\arabic{requirement}}% Add prefix to (sub-)requirements

在定义定理之后requirement。由于subrequirement环境计数器被定义为“依赖于”计数器requirement，因此前缀也将传递到该环境计数器。

在此处输入图片描述

\documentclass{article}

\usepackage{amsthm}

\newtheoremstyle{requirement}%
  {12pt}% Space above
  {10pt}% Space below
  {}% Body font
  {}% Indent amount
  {\bfseries\large}% Theorem head font
  {}% Punctuation after theorem head
  {\newline}% Space after theorem head
  {\thmname{#1}\thmnumber{ #2:}\thmnote{ #3}}% Theorem head spec

\theoremstyle{requirement}
\newtheorem{requirement}{Requirement}
\newtheorem{subrequirement}{Requirement}[requirement]% subrequirement depends on requirement

\renewcommand{\therequirement}{R\arabic{requirement}}% Add prefix to (sub-)requirements

\begin{document}

\setcounter{requirement}{76}% Just for this example
\begin{requirement}[my requirement]
  \label{req:requirement}
  Some main requirement.
\end{requirement}

As defined in~\ref{req:requirement}, \ldots

\setcounter{requirement}{4}\setcounter{subrequirement}{11}% Just for this example
\begin{subrequirement}[my subrequirement]
  \label{req:subrequirement}
  Some sub-requirement.
\end{subrequirement}

As defined in~\ref{req:subrequirement}.

\end{document}

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