Latex打印单斜线、反斜线r、反斜线n

Question

我想打印 *.tex 文件中的以下行 "as is":

while (tmp[0] == '\r' || tmp[0] == '\n') {tmp++;}

当我将它包装在这样的 \verb 命令中时：

\verb"while (tmp[0] == '\r' || tmp[0] == '\n') {tmp++;}"

它不起作用，我得到：

! Undefined control sequence.

所有其他 google 答案所以复杂。

当然，一定有一个简单的方法来做到这一点，对吧？谢谢！

编辑：

这是评论中要求的最小计数器示例：

%%%%%%%%%%%%%%%%%%%%%%%%%%
% document class: beamer %
%%%%%%%%%%%%%%%%%%%%%%%%%%
\documentclass{beamer}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% no navigation bars please %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setbeamertemplate{footline}[frame number]{}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% no navigation symbols please %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setbeamertemplate{navigation symbols}{}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% no footers at all please %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setbeamertemplate{footline}{}

%%%%%%%%%%%%%%%%%%%%%%%%%%%
% center the title please %
%%%%%%%%%%%%%%%%%%%%%%%%%%%
\setbeamertemplate{frametitle}[default][center]

%%%%%%%%%%%%%%%%%%
% begin document %
%%%%%%%%%%%%%%%%%%
\begin{document}

%%%%%%%%%
% title %
%%%%%%%%%
\title{Some Title}   

%%%%%%%%%%
% author %
%%%%%%%%%%
\author{Some Author}

%%%%%%%%%%%%
% date ... %
%%%%%%%%%%%%
\date{\today} 

%%%%%%%%%%%%%
% frame ... %
%%%%%%%%%%%%%
\frame{\titlepage} 

%%%%%%%%%%%%%%%%%%%%%%%%%%%
% SECTION :: Introduction %
%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{Section Introduction} 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Frame Title :: Introduction %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\frame{\frametitle{Status}
%%%%%%%%%%%%%%%%%%
% Items :: Begin %
%%%%%%%%%%%%%%%%%%
\begin{itemize}
\item
while (tmp[0] == 'A' $||$ tmp[1] == 'B') $\{$tmp++;$\}$
\end{itemize}
}
\end{document}

Answer 1

要在 LaTeX 中打印实际的反斜杠，您可以使用命令 \backslash，因此对于您的代码：

while (tmp[0] == '\backslash r' || tmp[0] == '\backslash n') {tmp++;}

编辑： 我忘了你在数学模式下需要这个命令。如果你想要一切 "as is"，这就是你需要的代码（对于垂直线和花括号也是如此）：

while (tmp[0] == `$\backslash$r' $\|$ tmp[0] == `$\backslash$n') $\{$tmp++;$\}$

Latex打印单斜线、反斜线r、反斜线n

Latex printing single slash, backslash r, backslash n

latex

escaping

verbatim-string