用阿拉伯语写一本书，使用多语种，我使用 Tcolorbox 制作例子、练习、定理等。我有两种标题示例：一种是阿拉伯语标题，在 RighToLeft 模式下，通过选项获得
title=\RL{\textbf{#2}}
另一个有两个标题，一个是阿拉伯语，一个是英语，通过选择获得
title=\RL{\textbf{#2}}}\hfill{\small\LR{\textbf{#3}}
我使用命令“colbacktitle=gray!20”作为标题的背景，我想要两件事：
1 / 首先，对于唯一的阿拉伯语标题，我想要获得该标题的“半框”，因此框标题的宽度等于示例框的半宽。
2/ 我想要的另一件事是为 tcolorbox 制作一个框架，但只围绕示例的标题
谢谢你的帮助
我编辑了该问题并添加了 MWE：
\documentclass[14pt,twoside]{book}
\usepackage{extsizes}
\usepackage{amsmath,amssymb}
\usepackage[most]{tcolorbox}
\usepackage{array}
\usepackage[total={165mm,235mm},centering,twoside]{geometry}%
\usepackage{polyglossia}
\setmainlanguage[numerals=maghrib]{arabic}
\setotherlanguage{english}
\newfontfamily\arabicfont[Script=Arabic,Scale=1.2,AutoFakeSlant=-0.02]{Simplified Arabic}
\setmonofont{DejaVu Sans Mono}
\let\arabicfonttt\ttfamily
\setsansfont[Script=Arabic,Scale=1.5]{Simplified Arabic}
\tikzstyle{whitebox} =
[draw=white, thick, scale=.707, fill=white,%
line width=0.3pt, text=black, rectangle,
font=\Large,
left, minimum height=.5cm, minimum width=1.9cm]
\newcounter{example}
\newtcolorbox[auto counter,
number within=section,
number freestyle={\noexpand\arabic{\tcbcounter}}]{example}[2][]{%
enhanced,
left=-5pt,
right=-5pt,
colback=white,
colframe=white,
top=5pt,
bottom=5pt,
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
fontupper=\normalsize,
label={#2},
overlay unbroken and first={%
\node[whitebox]
at ([xshift=1.5cm,yshift=-1cm]frame.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
#1}%
\newtcolorbox[use counter from=example]{texample}[3][]{%
enhanced,
left=-5pt,
right=-5pt,
coltitle=black,
colbacktitle=gray!40,
title=\mbox{\hspace*{5pt}\RL{\textbf{#2}}},
colback=white,
colframe=red,
top=0mm,
bottom=5pt,
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
enlarge top by=-2mm,
fontupper=\normalsize,
label={#3},
overlay unbroken and first={%
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\node[whitebox] (B)
at ([xshift=1.5cm,yshift=-1cm]frame.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
enlarge top at break by=0mm,pad at break=2mm,
#1%
}%
\newtcolorbox[use counter from=example]{teaexample}[4][]{%
enhanced,
left=-5pt,
right=-5pt,
coltitle=black,
colbacktitle=gray!40,
title=\hspace*{5pt}\RL{\textbf{#2}}\hfill\begin{english}\LR{\textbf{#3}}\end{english},
colback=white,
colframe=red,
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
fontupper=\normalsize,
label={#4},
overlay unbroken and first={%
\node[whitebox] (B)
at ([xshift=1.5cm,yshift=-1cm]frame.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
enlarge top at break by=0mm,pad at break=2mm,
#1%
}%
\begin{document}
\begin{example}{l1}
\LR{The text of the example (labeled here Ex) is usually in arabic, in RightToLeft mode}
\end{example}
\begin{texample}{\LR{Arabic title1}}{l2}
\LR{Text of another example}
\end{texample}
\begin{teaexample}{\LR{Arabic title2}}{English title}{l3}
\LR{Another text of another example}
\end{teaexample}
\end{document}
我给出了这个文件的编译（必须用 xelatex 编译器完成）
对于第二个例子，我想要一个宽度为总宽度一半的框标题（所以是 82.5 毫米）
其他事情。是否可以只在标题框周围添加框架（此处为红色）（此处为灰色）？
答案1
将 设置boxrule为0pt（因此整个框不绘制任何框架）并使用其中一个选项附加标题，例如：
boxrule=0pt,
minipage boxed title=\textwidth,
attach boxed title to top right,
boxed title style={
enhanced,
arc=0pt,
outer arc=0pt,
colbacktitle=gray!40,
colframe=red,
}
使用minipage boxed title=<width>您可以控制盒装标题所需的宽度，然后您可以使用boxed title style进一步自定义用于标题的框。
完整示例（根据需要调整设置）：
\documentclass[14pt,twoside]{book}
\usepackage{extsizes}
\usepackage{amsmath,amssymb}
\usepackage[most]{tcolorbox}
\usepackage{array}
\usepackage[total={165mm,235mm},centering,twoside]{geometry}%
\usepackage{polyglossia}
\setmainlanguage[numerals=maghrib]{arabic}
\setotherlanguage{english}
\newfontfamily\arabicfont[Script=Arabic,Scale=1.2,AutoFakeSlant=-0.02]{Scheherazade}
\setmonofont{DejaVu Sans Mono}
\let\arabicfonttt\ttfamily
\setsansfont[Script=Arabic,Scale=1.5]{Scheherazade}
\tikzstyle{whitebox} =
[draw=white, thick, scale=.707, fill=white,%
line width=0.3pt, text=black, rectangle,
font=\Large,
left, minimum height=.5cm, minimum width=1.9cm]
\newcounter{example}
\newtcolorbox[auto counter,
number within=section,
number freestyle={\noexpand\arabic{\tcbcounter}}]{example}[2][]{%
enhanced,
left=-5pt,
right=-5pt,
colback=white,
colframe=white,
top=5pt,
bottom=5pt,
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
fontupper=\normalsize,
label={#2},
overlay unbroken and first={%
\node[whitebox]
at ([xshift=1.5cm,yshift=-1cm]frame.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
#1}%
\newtcolorbox[use counter from=example]{texample}[3][]{%
enhanced,
left=-5pt,
right=-5pt,
coltitle=black,
colbacktitle=gray!40,
title=\mbox{\hspace*{5pt}\RL{\strut\textbf{#2}\strut}},
colback=white,
boxrule=0pt,
minipage boxed title=0.5\textwidth,
attach boxed title to top right,
boxed title style={
enhanced,
arc=0pt,
outer arc=0pt,
colbacktitle=gray!40,
colframe=red,
},
top=0mm,
bottom=5pt,
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
enlarge top by=-2mm,
fontupper=\normalsize,
label={#3},
overlay unbroken and first={%
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\node[whitebox] (B)
at ([xshift=1.5cm,yshift=-1cm]frame.north east|-title.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
enlarge top at break by=0mm,pad at break=2mm,
#1%
}%
\newtcolorbox[use counter from=example]{teaexample}[4][]{%
enhanced,
left=-5pt,
right=-5pt,
coltitle=black,
colbacktitle=gray!40,
title=\hspace*{5pt}\RL{\strut\textbf{#2}}\hfill\begin{english}\LR{\textbf{#3}\strut}\end{english},
colback=white,
boxrule=0pt,
minipage boxed title=\textwidth,
attach boxed title to top right,
boxed title style={
enhanced,
arc=0pt,
outer arc=0pt,
colbacktitle=gray!40,
colframe=red,
},
enlarge top by=\baselineskip/2+1mm,
enlarge top at break by=0mm,pad at break=2mm,
fontupper=\normalsize,
label={#4},
overlay unbroken and first={%
\node[whitebox] (B)
at ([xshift=1.5cm,yshift=-1cm]frame.north east|-title.north east)
{\strut\RL{\setlength{\extrarowheight}{-30.5pt}\textbf{
$\begin{array}{c}
\hline
\rule{0pt}{2ex}
\mbox{Ex}
\\
\mbox{\large\thetcbcounter}
\rule{0pt}{1.5ex}
\end{array}$}}};},
breakable,
before=\par\smallskip\centering,
width=\textwidth, %%% change the width here.
arc=0pt,outer arc=0pt,
extrude right by=5pt,
extrude left by=5pt,
enlarge top at break by=0mm,pad at break=2mm,
#1%
}%
\begin{document}
\begin{example}{l1}
\LR{The text of the example (labeled here Ex) is usually in arabic, in RightToLeft mode}
\end{example}
\begin{texample}{\LR{Arabic title1}}{l2}
\LR{Text of another example}
\end{texample}
\begin{teaexample}{\LR{Arabic title2}}{English title}{l3}
\LR{Another text of another example}
\end{teaexample}
\end{document}
评论
我
\strut在标题中添加了 s，这样无论有没有下降部/上升部，框都会具有相同的高度。“Ex #”标签的位置现在根据
frame和title“盒子”而定，因此它与新定义的使用一致。我将阿拉伯字体改为 Sheherazade，因为我没有您使用的字体，但这与解决方案无关。