以下是 MWE：
\documentclass[a4paper]{article}
\usepackage{ean13isbn}
\usepackage{xcolor}
\begin{document}
\EANisbn[ISBN=978-80-7340-097-2]
\end{document}
下面是我使用xelatex和得到的结果pldflatex。发生了什么？
编辑：这是我的日志文件，运行后xelatex：
This is XeTeX, Version 3.14159265-2.6-0.999992 (TeX Live 2020) (preloaded format=xelatex 2020.7.14) 15 JAN 2021 16:25
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**mwe.tex
(./mwe.tex
LaTeX2e <2020-02-02> patch level 5
L3 programming layer <2020-06-18>
(/home/kristian/texlive2019/texmf-dist/tex/latex/base/article.cls
Document Class: article 2019/12/20 v1.4l Standard LaTeX document class
(/home/kristian/texlive2019/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2019/12/20 v1.4l Standard LaTeX file (size option)
)
\c@part=\count163
\c@section=\count164
\c@subsection=\count165
\c@subsubsection=\count166
\c@paragraph=\count167
\c@subparagraph=\count168
\c@figure=\count169
\c@table=\count170
\abovecaptionskip=\skip47
\belowcaptionskip=\skip48
\bibindent=\dimen134
)
(/home/kristian/texlive2019/texmf-dist/tex/latex/ean13isbn/ean13isbn.sty
Package: ean13isbn 2008/06/20 EAN13 with ISBN
Package ean13isbn Info: $Id: ean13isbn.sty 208 2008-06-19 23:25:37Z zw $.
(/home/kristian/texlive2019/texmf-dist/tex/latex/kvoptions/kvoptions.sty
Package: kvoptions 2019/11/29 v3.13 Key value format for package options (HO)
(/home/kristian/texlive2019/texmf-dist/tex/latex/graphics/keyval.sty
Package: keyval 2014/10/28 v1.15 key=value parser (DPC)
\KV@toks@=\toks15
)
(/home/kristian/texlive2019/texmf-dist/tex/generic/ltxcmds/ltxcmds.sty
Package: ltxcmds 2019/12/15 v1.24 LaTeX kernel commands for general use (HO)
)
(/home/kristian/texlive2019/texmf-dist/tex/generic/kvsetkeys/kvsetkeys.sty
Package: kvsetkeys 2019/12/15 v1.18 Key value parser (HO)
))
(/home/kristian/texlive2019/texmf-dist/tex/generic/ean/ean13.tex
The EAN-13 barcodes macro. Copyright (C) Petr Olsak, 1995
\numlines=\count171
\nummodules=\count172
\numdigit=\count173
\evensum=\count174
\oddsum=\count175
\X=\dimen135
\bcorr=\dimen136
\workdimen=\dimen137
\barheight=\dimen138
)
\zw@isbnfsize=\dimen139
)
(/home/kristian/texlive2019/texmf-dist/tex/latex/xcolor/xcolor.sty
Package: xcolor 2016/05/11 v2.12 LaTeX color extensions (UK)
(/home/kristian/texlive2019/texmf-dist/tex/latex/graphics-cfg/color.cfg
File: color.cfg 2016/01/02 v1.6 sample color configuration
)
Package xcolor Info: Driver file: xetex.def on input line 225.
(/home/kristian/texlive2019/texmf-dist/tex/latex/graphics-def/xetex.def
File: xetex.def 2017/06/24 v5.0h Graphics/color driver for xetex
)
Package xcolor Info: Model `cmy' substituted by `cmy0' on input line 1348.
Package xcolor Info: Model `RGB' extended on input line 1364.
Package xcolor Info: Model `HTML' substituted by `rgb' on input line 1366.
Package xcolor Info: Model `Hsb' substituted by `hsb' on input line 1367.
Package xcolor Info: Model `tHsb' substituted by `hsb' on input line 1368.
Package xcolor Info: Model `HSB' substituted by `hsb' on input line 1369.
Package xcolor Info: Model `Gray' substituted by `gray' on input line 1370.
Package xcolor Info: Model `wave' substituted by `hsb' on input line 1371.
)
(/home/kristian/texlive2019/texmf-dist/tex/latex/l3backend/l3backend-xdvipdfmx.
def
File: l3backend-xdvipdfmx.def 2020-06-29 L3 backend support: xdvipdfmx
\g__graphics_track_int=\count176
\l__pdf_internal_box=\box45
\g__pdf_backend_object_int=\count177
\g__pdf_backend_annotation_int=\count178
) (./mwe.aux)
\openout1 = `mwe.aux'.
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for TS1/cmr/m/n on input line 4.
LaTeX Font Info: Trying to load font information for TS1+cmr on input line 4
.
(/home/kristian/texlive2019/texmf-dist/tex/latex/base/ts1cmr.fd
File: ts1cmr.fd 2019/12/16 v2.5j Standard LaTeX font definitions
)
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for TU/lmr/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 4.
LaTeX Font Info: ... okay on input line 4.
EAN: 9 788073 400972
EANinternal: 011113123121312132112131141111111113232113211311213122122111
LaTeX Font Info: Trying to load font information for OT1+phv on input line 5
.
(/home/kristian/texlive2019/texmf-dist/tex/latex/psnfss/ot1phv.fd
File: ot1phv.fd 2020/03/25 scalable font definitions for OT1/phv.
)
LaTeX Font Warning: Font shape `OT1/phv/mc/n' undefined
(Font) using `OT1/phv/m/n' instead on input line 5.
[1
] (./mwe.aux)
LaTeX Font Warning: Some font shapes were not available, defaults substituted.
)
Here is how much of TeX's memory you used:
1560 strings out of 479277
23295 string characters out of 5879017
265953 words of memory out of 5000000
19260 multiletter control sequences out of 15000+600000
533902 words of font info for 29 fonts, out of 8000000 for 9000
1348 hyphenation exceptions out of 8191
33i,5n,37p,202b,210s stack positions out of 5000i,500n,10000p,200000b,80000s
Output written on mwe.pdf (1 page).
答案1
该问题是由 PSNFSS 和 NFSS2 中最近的更改组合引起的。旧版本仍然有效，但可能会失败，具体取决于您的安装。它已在 2021-01-24 版本中修复，该版本已于几个小时前上传到 CTAN，几天后应可在发行版中使用。
答案2
感谢大家！
我最终ean13isbn.sty从 CTAN 下载了文件。编译时，我收到以下错误：
LaTeX Warning: Font shape declaration has incorrect series value `mc'.
It should not contain an `m'! Please correct it.
Found on input line 21.
然后我找到了有问题的mc（唯一一个）并将其更改为c。现在条形码看起来应该是这样的：
我不确定这是否是解决这些问题的完全正确的方法，但它确实有效！