![符号(输入符号)](https://linux22.com/image/471031/%E7%AC%A6%E5%8F%B7%EF%BC%88%E8%BE%93%E5%85%A5%E7%AC%A6%E5%8F%B7%EF%BC%89.png)
答案1
\documentclass{article}
%\usepackage{boisik}
\DeclareSymbolFont{bskarr}{U}{bskarr}{m}{n}
\DeclareFontFamily{U}{bskarr}{ }
\DeclareFontShape{U}{bskarr}{m}{n}{<->bskarr10}{}
\DeclareMathSymbol{\drsh}{\mathrel}{bskarr}{"F9}
\begin{document}
$\drsh$
\end{document}
或者,可以从头开始构建它:
\documentclass{article}
\usepackage{stackengine,graphicx}
\newcommand\drsh{\mathop{\ensurestackMath{%
\stackengine{-1.2pt}{\rightarrow}{\scalebox{1}[.35]{%
$\mkern-1.3mu\vert$}}{O}{l}{F}{F}{S}}}}
\begin{document}
$A\drsh B$
\end{document}