在编写特克斯文件放入pdf通过pdflatex sample.tex包含\tableofcontents命令的 ，文件sample.toc按预期生成。但它是空的（0 字节）。
以下是文件：
样本
\documentclass[12pt]{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}
\begin{document}
\tableofcontents
\section*{First Section}
some math here
\begin{align*}
&n + \sum_{i=1}^{\lfloor \lg n \rfloor} 2^i \\
&= n + \frac{2(1-2^{\lfloor \lg n \rfloor})}{1-2}
\end{align*}
\section*{second section}
plain text here
\end{document}
样本目录
样本.aux
\relax
\gdef \@abspage@last{1}
样本日志
This is pdfTeX, Version 3.141592653-2.6-1.40.24 (TeX Live 2022/Arch Linux) (preloaded format=pdflatex 2022.5.18) 18 MAY 2022 15:33
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**sample.tex
(./sample.tex
LaTeX2e <2021-11-15> patch level 1
L3 programming layer <2022-04-10>
(/usr/share/texmf-dist/tex/latex/base/article.cls
Document Class: article 2021/10/04 v1.4n Standard LaTeX document class
(/usr/share/texmf-dist/tex/latex/base/size12.clo
File: size12.clo 2021/10/04 v1.4n Standard LaTeX file (size option)
)
\c@part=\count185
\c@section=\count186
\c@subsection=\count187
\c@subsubsection=\count188
\c@paragraph=\count189
\c@subparagraph=\count190
\c@figure=\count191
\c@table=\count192
\abovecaptionskip=\skip47
\belowcaptionskip=\skip48
\bibindent=\dimen138
)
(/usr/share/texmf-dist/tex/latex/base/inputenc.sty
Package: inputenc 2021/02/14 v1.3d Input encoding file
\inpenc@prehook=\toks16
\inpenc@posthook=\toks17
)
(/usr/share/texmf-dist/tex/latex/amsmath/amsmath.sty
Package: amsmath 2021/10/15 v2.17l AMS math features
\@mathmargin=\skip49
For additional information on amsmath, use the `?' option.
(/usr/share/texmf-dist/tex/latex/amsmath/amstext.sty
Package: amstext 2021/08/26 v2.01 AMS text
(/usr/share/texmf-dist/tex/latex/amsmath/amsgen.sty
File: amsgen.sty 1999/11/30 v2.0 generic functions
\@emptytoks=\toks18
\ex@=\dimen139
))
(/usr/share/texmf-dist/tex/latex/amsmath/amsbsy.sty
Package: amsbsy 1999/11/29 v1.2d Bold Symbols
\pmbraise@=\dimen140
)
(/usr/share/texmf-dist/tex/latex/amsmath/amsopn.sty
Package: amsopn 2021/08/26 v2.02 operator names
)
\inf@bad=\count193
LaTeX Info: Redefining \frac on input line 234.
\uproot@=\count194
\leftroot@=\count195
LaTeX Info: Redefining \overline on input line 399.
\classnum@=\count196
\DOTSCASE@=\count197
LaTeX Info: Redefining \ldots on input line 496.
LaTeX Info: Redefining \dots on input line 499.
LaTeX Info: Redefining \cdots on input line 620.
\Mathstrutbox@=\box50
\strutbox@=\box51
\big@size=\dimen141
LaTeX Font Info: Redeclaring font encoding OML on input line 743.
LaTeX Font Info: Redeclaring font encoding OMS on input line 744.
\macc@depth=\count198
\c@MaxMatrixCols=\count199
\dotsspace@=\muskip16
\c@parentequation=\count266
\dspbrk@lvl=\count267
\tag@help=\toks19
\row@=\count268
\column@=\count269
\maxfields@=\count270
\andhelp@=\toks20
\eqnshift@=\dimen142
\alignsep@=\dimen143
\tagshift@=\dimen144
\tagwidth@=\dimen145
\totwidth@=\dimen146
\lineht@=\dimen147
\@envbody=\toks21
\multlinegap=\skip50
\multlinetaggap=\skip51
\mathdisplay@stack=\toks22
LaTeX Info: Redefining \[ on input line 2938.
LaTeX Info: Redefining \] on input line 2939.
)
(/usr/share/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def
File: l3backend-pdftex.def 2022-04-14 L3 backend support: PDF output (pdfTeX)
\l__color_backend_stack_int=\count271
\l__pdf_internal_box=\box52
) (./sample.aux)
\openout1 = `sample.aux'.
LaTeX Font Info: Checking defaults for OML/cmm/m/it on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for OMS/cmsy/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for OT1/cmr/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for T1/cmr/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for TS1/cmr/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for OMX/cmex/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
LaTeX Font Info: Checking defaults for U/cmr/m/n on input line 5.
LaTeX Font Info: ... okay on input line 5.
(./sample.toc)
\tf@toc=\write3
\openout3 = `sample.toc'.
[1
{/var/lib/texmf/fonts/map/pdftex/updmap/pdftex.map}]
(./sample.aux) )
Here is how much of TeX's memory you used:
1183 strings out of 478238
18440 string characters out of 5850456
311201 words of memory out of 5000000
19469 multiletter control sequences out of 15000+600000
473275 words of font info for 42 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
54i,10n,62p,202b,121s stack positions out of 5000i,500n,10000p,200000b,80000s
</usr/share/texmf-dist/fonts/type1/public/amsfonts/cm/cmbx12.pf
b></usr/share/texmf-dist/fonts/type1/public/amsfonts/cm/cmex10.pfb></usr/share/
texmf-dist/fonts/type1/public/amsfonts/cm/cmmi12.pfb></usr/share/texmf-dist/fon
ts/type1/public/amsfonts/cm/cmmi8.pfb></usr/share/texmf-dist/fonts/type1/public
/amsfonts/cm/cmr12.pfb></usr/share/texmf-dist/fonts/type1/public/amsfonts/cm/cm
r8.pfb></usr/share/texmf-dist/fonts/type1/public/amsfonts/cm/cmsy10.pfb></usr/s
hare/texmf-dist/fonts/type1/public/amsfonts/cm/cmsy8.pfb>
Output written on sample.pdf (1 page, 71619 bytes).
PDF statistics:
48 PDF objects out of 1000 (max. 8388607)
28 compressed objects within 1 object stream
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)
我该如何修复，以便sample.toc正确生成，并因此通过第二次编译在 pdf 文件中呈现目录pdflatex sample.tex？
答案1
该\section*命令实际上用于目录中不会出现的部分。用 替换它们\section即可。
只要删除两个杂散开始就会得到下面的输出。
