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如何使用不带数学符号的下划线

tag-icon • tag-icon environments tcolorbox underscore
如何使用不带数学符号的下划线

我只是想定义一个带有标题框环境的 tcolorbox，如下所示： [I:OBJ_ID_123] 因为它包含下划线。每次输入_ 来显示下划线非常繁琐。因为我的文档包含很多固定格式，如 I:OBJ_ID_123。如何使格式只输入为纯文本而不使用数学符号模式。只需输入为 [I:OBJ_ID_123]。例如

这是演示：

\documentclass[10pt,a4paper]{article}

\usepackage{graphicx}
\usepackage{tcolorbox}
\begin{document}
    \begin{tcolorbox}[halign title=flush right,title=\texttt{[I:OBJ\_ID\_123] }]
        this is demo for how to define this,i need this effect
    \end{tcolorbox}
% start new effect, begin ID:124,125......, it is very hard to type \_ to escape underscore
    \begin{tcolorbox}[halign title=flush right,title=\texttt{[I:OBJ\_ID\_124] }]
    so the second ID begin 124, i need to type [I:OBJ\_ID\_124]
    how to directly to type[I:OBJ_ID_124]
\end{tcolorbox}

\end{document}

答案1

假设只有数字会改变，可以通过定义新命令来实现\obj：

\documentclass[10pt,a4paper]{article}

\usepackage{graphicx}
\usepackage{tcolorbox}
\begin{document}
    \newcommand{\obj}[1]{I:OBJ\_ID\_#1}

    \begin{tcolorbox}[halign title=flush right,title=\texttt{[I:OBJ\_ID\_123] }]
        this is demo for how to define this,i need this effect
    \end{tcolorbox}
% start new effect, begin ID:124,125......, it is very hard to type \_ to escape underscore
    \begin{tcolorbox}[halign title=flush right,title=\texttt{[I:OBJ\_ID\_124] }]
    so the second ID begin 124, i need to type [I:OBJ\_ID\_124]
%    how to directly to type[I:OBJ_ID_124]
    \end{tcolorbox}

    \begin{tcolorbox}[halign title=flush right,title=\texttt{[\obj{456}] }]
        using a macro (newcommand) to insert the digits
    \end{tcolorbox}
       
\end{document}

结果：

结果

有关\newcommand和的更多详细信息\newenvironment请参见此处，例如吸收标题和 tcolorbox 语句：https://en.wikibooks.org/wiki/LaTeX/Macros。

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