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如何保存物品清单和计数器？

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如何保存物品清单和计数器？

我想保存一个项目列表及其计数器。这是我在 latex 中写的内容

\documentclass{article}
\RequirePackage{etoolbox} % defines lists and their operations
\RequirePackage{tabulary} % defines content-based sizable tables
\newcounter{vpt}
\setcounter{vpt}{0}
\newcommand{\facility}[1]{\addtocounter{vpt}{1} \listcsgadd{FacilityList}{#1} 
\arabic{vpt}. $-->$ #1  }
\newcommand{\facilityno}[1]{\listcsgadd{FacilityNo}{#1} \arabic{vpt}. $-->$ #1  }
\begin{document}
I want to save the text and the counter\\
\facility{this is facility one}  \facilityno{\the\value{vpt}} \\
\facility{this is facility two}  \facilityno{\the\value{vpt}}\\
\facility{this is facility three}\facilityno{\the\value{vpt}} 
the texts are saved 
\begin{itemize}
\renewcommand*{\do}[1]{\item  #1} 
\dolistcsloop{FacilityList}
\end{itemize}  
%    But the counters are all 3??!!! 
\begin{itemize}
    \renewcommand*{\do}[1]{\item #1} 
    \dolistcsloop{FacilityNo}
\end{itemize}    
%     any comments?
\end{document}

答案1

快速回答：您必须扩展计数器的值\facilityno。我在输入过程中插入了一些\expandafters，但我想这不是理想的语法。

如果不扩展参数，则\the\value{vpt}使用列表元素时会扩展列表元素，此时计数器状态为 3。

\documentclass{article}
\RequirePackage{etoolbox} % defines lists and their operations
\RequirePackage{tabulary} % defines content-based sizable tables
\newcounter{vpt}
\setcounter{vpt}{0}
\newcommand{\facility}[1]{\addtocounter{vpt}{1} \listcsgadd{FacilityList}{#1} 
\arabic{vpt}. $-->$ #1  }
\newcommand{\facilityno}[1]{\listcsgadd{FacilityNo}{#1} \arabic{vpt}. $-->$ #1}
\begin{document}
I want to save the text and the counter\\
\facility{this is facility one}  \expandafter\facilityno\expandafter{\the\value{vpt}}\\
\facility{this is facility two}  \expandafter\facilityno\expandafter{\the\value{vpt}}\\
\facility{this is facility three}\expandafter\facilityno\expandafter{\the\value{vpt}} 
the texts are saved 
\begin{itemize}
\renewcommand*{\do}[1]{\item  #1} 
\dolistcsloop{FacilityList}
\end{itemize}  
%    But the counters are all 3??!!! 
\begin{itemize}
    \renewcommand*{\do}[1]{\item #1} 
    \dolistcsloop{FacilityNo}
\end{itemize}    
%     any comments?
\end{document}

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