作為 MWE 重新發布，希望這足夠少。抱歉，如果有什麼無關的事。
我在結束前的最後一個“}”上收到此錯誤：
! Missing \endcsname inserted.
<to be read again>
\c@questions
l.26 }
The control sequence marked <to be read again> should
not appear between \csname and \endcsname.
這是文件：
\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{totcount}
\usepackage{pgffor}
\begin{document}
\makeatletter
\newcommand\setq[3]{%
\global\@namedef{qa:#1.#2}{#3}%
}
\makeatother
\newtotcounter{questions}
\newcommand\newq[4]{%
\setq{\value{questions}}{Number}{\value{questions}}
\setq{\value{questions}}{Date}{#1}
\setq{\value{questions}}{Time}{#2}
\setq{\value{questions}}{Question}{#3}
\setq{\value{questions}}{Answer}{#4}
\stepcounter{questions}
}
\newq{268}%
{10:25}%
{Can you create a latex project with multiple documents?}%
{Yes, at least you can in Overleaf. You click on the menu in the top-left, and change main document to the tex file you want to compile.%
}
\end{document}
如果這改變了任何事情，我正在使用背頁。我也可以對與錯誤無關的程式碼進行任何最佳化。謝謝。
編輯：將值更改為阿拉伯語，這消除了 endcsname 錯誤，但現在我遇到了一般編譯錯誤。
答案1
而 -counter 的值questions是0序列\setq{\arabic{questions}}{Number}{\arabic{questions}}，則定義控製字令牌\qa:0.Number以傳遞令牌序列\arabic{questions}。該令牌序列將依次執行/擴展，而不是在定義時執行/擴展，而是在使用/擴展控製字之後立即執行/擴展，而不是在定義時而是在使用/擴展控製字之後\qa:0.Number產生-counter 當前的值question使用/擴展控製字\qa:0.Number。
您可能希望\arabic{questions}在定義時擴展序列\qa:0.Number。
而不是\arabic{questions}我使用，\number\value{questions}因為對於後者，您只需要一個\expandafter鏈來觸發擴展，直到您獲得值，而進一步，您需要四個\expandafter鏈：
\arabic=macro:
#1->\expandafter \@arabic \csname c@#1\endcsname .
l.16 \show\arabic
? i
insert> \show\@arabic
> \@arabic=macro:
#1->\number #1.
<insert> \makeatletter\show\@arabic
l.16 \show\arabic
從\expandafter獲取的第一個鏈。\expandafter\@arabic\csname c@questions\endcsname\arabic{questions}
從\expandafter獲取的第二條鏈。\@arabic\c@questions\expandafter\@arabic\csname c@questions\endcsname
從\expandafter獲取的第三條鏈。\number\c@questions\@arabic\c@questions
第四個鏈用於取得表示暫存器\expandafter值的十進制數字序列。\count\c@questions\number\c@questions
在我的系統上，以下 MWE 編譯沒有錯誤：
\documentclass{article}
% \usepackage[utf8]{inputenc}
\usepackage{totcount}
% \usepackage{pgffor}
\newcommand\PassFirstToSecond[2]{#2{#1}}
\newcommand\setq[3]{%
\global\csname @namedef\endcsname{qa:#1.#2}{#3}%
}
\newtotcounter{questions}
\newcommand\newq[4]{%
\expandafter\PassFirstToSecond\expandafter{\number\value{questions}}{\setq{\arabic{questions}}{Number}}%
\setq{\arabic{questions}}{Date}{#1}%
\setq{\arabic{questions}}{Time}{#2}%
\setq{\arabic{questions}}{Question}{#3}%
\setq{\arabic{questions}}{Answer}{#4}%
\stepcounter{questions}%
}
\newq{268}%
{10:25}%
{Can you create a latex project with multiple documents?}%
{Yes, at least you can in Overleaf. You click on the menu in the top-left, and change main document to the tex file you want to compile.%
}
\begin{document}
\par\noindent
\csname qa:0.Number\endcsname\\
\csname qa:0.Date\endcsname\\
\csname qa:0.Time\endcsname\\
\csname qa:0.Question\endcsname\\
\csname qa:0.Answer\endcsname
\end{document}
您可能對\name- 巨集感興趣。我\name在線程中詳細闡述了 -macro“在空格很重要之後定義一個控制序列”於 2016 年 11 月 10 日在 TeX - LaTeX StackExchange 上啟動：
\documentclass{article}
% \usepackage[utf8]{inputenc}
\usepackage{totcount}
% \usepackage{pgffor}
\makeatletter
\newcommand\MyMacroNamePrefix@Exchange[2]{#2#1}%
\@ifdefinable\name{%
\long\def\name#1#{\romannumeral0\MyMacroNamePrefix@innername{#1}}%
}%
\newcommand\MyMacroNamePrefix@innername[2]{%
\expandafter\MyMacroNamePrefix@Exchange\expandafter{\csname#2\endcsname}{ #1}%
}%
\makeatother
\newtotcounter{questions}
\newcommand\newq[4]{%
\name\name{@ifdefinable}{qa:\arabic{questions}.Number}{%
\name\edef{qa:\arabic{questions}.Number}{\arabic{questions}}%
}%
\name\newcommand*{qa:\arabic{questions}.Date}{#1}%
\name\newcommand*{qa:\arabic{questions}.Time}{#2}%
\name\newcommand*{qa:\arabic{questions}.Question}{#3}%
\name\newcommand*{qa:\arabic{questions}.Answer}{#4}%
\stepcounter{questions}%
}%
\newq{268}%
{10:25}%
{Can you create a latex project with multiple documents?}%
{Yes, at least you can in Overleaf. You click on the menu in the top-left, and change main document to the tex file you want to compile.%
}
\begin{document}
\par\noindent
\name{qa:0.Number}\\
\name{qa:0.Date}\\
\name{qa:0.Time}\\
\name{qa:0.Question}\\
\name{qa:0.Answer}
\end{document}