我使用 XeTex，因为我可以在数学模式下输入希伯来语。
这是我输入的木犀草素：
\[
\xymatrix{*+[F*:red]++[F*:blue]++[o][F][green]{abcde}\ar[r] & *{a}}
\]
以下是使用 XeTeX 的结果：
使用 pdflatex：
当我使用 XeTex 回到 pdflatex 后，它给出了第一个结果......
你知道为什么吗？
你知道我该如何解决这个问题吗？
以下是完整文件：
% Preview source code
%% LyX 2.2.3 created this file. For more info, see http://www.lyx.org/.
%% Do not edit unless you really know what you are doing.
\documentclass[english,hebrew]{article}
\usepackage{fontspec}
\usepackage{fancyhdr}
\pagestyle{fancy}
\setlength{\parindent}{0bp}
\usepackage[all]{xy}
\makeatletter
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Textclass specific LaTeX commands.
\usepackage{theorem}
\theorembodyfont{\upshape}
\newtheorem{theorem}{\R{משפט}}[section]
\AtBeginDocument{\make@lr\thetheorem}
% The following chunk fixes export with XeTeX.
% It is needed because polyglossia is used by default
% and \make@lr is only defined by babel.
\@ifundefined{make@lr}
{\def\make@lr#1{\begingroup
\toks@=\expandafter{#1}%
\edef\x{\endgroup
\def\noexpand#1{\noexpand\@number{\the\toks@}}}%
\x}}{\relax}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% User specified LaTeX commands.
\usepackage{xcolor}
\newfontfamily\hebrewfont[Script=Hebrew]{David CLM}
\newfontfamily\hebrewfonttt[Script=Hebrew]{Miriam Mono CLM}
\newfontfamily\hebrewfontsf[Script=Hebrew]{Anka CLM}
\makeatother
\usepackage{xunicode}
\usepackage{polyglossia}
\setdefaultlanguage{hebrew}
\setotherlanguage{english}
\begin{document}
\[
\xymatrix{*+[F*:red]++[F*:blue]++[o][F][green]{abcde}\ar[r] & *{a}}
\]
\end{document}
这是我的字体屏幕：
