我在尝试获取使用 创建的各种定理环境的列表时遇到了麻烦\newtcbtheorem。经过一番挖掘，我发现了 @cmhughes 在 2012 年给出的这个答案：https://tex.stackexchange.com/a/87437。在这个答案中，他使用 pgfkeys，特别/.code是将条目添加到新的目录文件中。当我使用它时，它工作得很好，但是它\tcbmaketheorem已被弃用，我想将它转换为，\newtcbtheorem以便它可以使用新标准，也因为它允许我调用没有数字的定理环境。但是，我无法弄清楚如何调整 pgfkeys，并且在线的所有文档都很难理解。这是一个返回的 MWE：
Runaway argument?
\fi \pgfkeys@parse title={\tcb@theo@title {Theorem}{\thetcbcounter }{\ETC.
! File ended while scanning use of \pgfkeys@code.
梅威瑟：
\documentclass{article}
\usepackage{tikz}
\usepackage[]{calc}
\usepackage{float}
\usepackage[theorems]{tcolorbox}
\tcbset{noparskip}
\makeatletter
\newcommand\listtheoremname{List of Theorems}
\newcommand\listoftheorems{%
\section*{\listtheoremname}\@starttoc{thm}}
\tcbset{
thmbox/.code args={#1#2#3#4}{%
\refstepcounter{#2}\label{#4}%
\addcontentsline{defs}{subsection}{\protect\numberline{\csname the#2\endcsname} #3}, % new bit
\pgfkeysalso{title={\setlength{\hangindent}{\widthof{#1~\csname the#2\endcsname:\ }}\hangafter=1 \mbox{#1~\csname the#2\endcsname:\ }#3}}}}
\makeatother
% moved new theorem declaration to the preamble
\newcounter{mytheorem}[section]
\def\themytheorem{\thesection.\arabic{mytheorem}}
\newtcbtheorem[use counter=mytheorem]{theo}{Theorem}{thmbox}{theorem}
\begin{document}
\tableofcontents{}
\listoftheorems % new bit
\pagebreak{}
\section{Theorems}
\begin{theo}{Summation of Numbers}{summation}
For all natural number $n$ it holds:\\[2mm]
$\displaystyle\sum\limits_{i=1}^n i = \frac{n(n+1)}{2}$.
\end{theo}
We have given Theorem \ref{theorem:summation} on page \pageref{theorem:summation}.
\pagebreak{}
\end{document}
这是我的日志文件：
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restricted \write18 enabled.
entering extended mode
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Runaway argument?
\fi \pgfkeys@parse title={\tcb@theo@title {Theorem}{\thetcbcounter }{\ETC.
! File ended while scanning use of \pgfkeys@code.
<inserted text>
\par
<*> ./master.tex
! ==> Fatal error occurred, no output PDF file produced!
Transcript written on master.log.
有什么办法可以解决这个问题吗？我一边阅读 pgfkeys 的文档一边尝试解决这个问题，但似乎只会让情况变得更糟。提前致谢！
答案1
评论：我的回答几乎与这个，发布者托马斯·F·斯特姆，的作者tcolorbox，7年前。
只需使用add to list={thm}{subsection}：
\newtcbtheorem[use counter=mytheorem]{theo}{Theorem}
{add to list={thm}{subsection}}{theorem}
选项add to list已在 v2.40 (2013/07/15) 中添加tcolorbox（请参阅其变更日志)，因此在 2012 年 12 月提出链接问题时不可用。
完整示例
\documentclass{article}
\usepackage{tikz}
\usepackage[]{calc}
\usepackage{float}
\usepackage[theorems]{tcolorbox}
\tcbset{noparskip}
\makeatletter
\newcommand\listtheoremname{List of Theorems}
\newcommand\listoftheorems{%
\section*{\listtheoremname}\@starttoc{thm}}
\makeatother
% moved new theorem declaration to the preamble
\newcounter{mytheorem}[section]
\def\themytheorem{\thesection.\arabic{mytheorem}}
\newtcbtheorem[use counter=mytheorem]{theo}{Theorem}{add to list={thm}{subsection}}{theorem}
\begin{document}
\tableofcontents
\listoftheorems % new bit
\pagebreak
\section{Theorems}
\begin{theo}{Summation of Numbers}{summation}
For all natural number $n$ it holds:\\[2mm]
$\displaystyle\sum\limits_{i=1}^n i = \frac{n(n+1)}{2}$.
\end{theo}
We have given Theorem \ref{theorem:summation} on page \pageref{theorem:summation}.
\end{document}
