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尝试获取表格时收到错误消息（表格）

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尝试获取表格时收到错误消息（表格）

尝试获取此表时收到一条错误消息：

\documentclass[10pt]{article}
\textwidth= 5.00in
\textheight= 7.4in
\topmargin = 30pt
\evensidemargin=0pt
\oddsidemargin=55pt
\headsep=17pt
\parskip=.5pt
\parindent=12pt
\font\smallit=cmti10
\font\smalltt=cmtt10
\font\smallrm=cmr9

\usepackage{tabularx}
\usepackage{amssymb,latexsym,amsmath,epsfig,amsthm,enumerate} 

\makeatletter

\renewcommand\section{\@startsection {section}{1}{\z@}
{-30pt \@plus -1ex \@minus -.2ex}
{2.3ex \@plus.2ex}
{\normalfont\normalsize\bfseries\boldmath}}

\renewcommand\subsection{\@startsection{subsection}{2}{\z@}
{-3.25ex\@plus -1ex \@minus -.2ex}
{1.5ex \@plus .2ex}
{\normalfont\normalsize\bfseries\boldmath}}

\renewcommand{\@seccntformat}[1]{\csname the#1\endcsname. }

\makeatother

\begin{document}

Examples for all values of the parameters are given below. 

\begin{tabular*}{}{@{\extracolsep{\fill}}lll}
$x_0 = x_1 = x_2 = x_3 = x_4 \leq \dots \leq x_n$ & $A(x) = 4$ & $B=1$\\
$x_0 = x_1 = x_2 = x_3 = x_5 \leq \dots \leq x_n$ & $A(x) = 4$ & $B=2$\\
$x_0 = x_1 = x_2 = x_3 = x_6 \leq \dots \leq x_n$ & $A(x) = 4$ & $B=3$\\
$x_0 = x_1 = x_2 = x_3 = x_7 \leq \dots \leq x_n$ & $A(x) = 4$ & $B=4, \text{ etc.}$
\end{tabular*}

\end{document}

什么可以解决？

答案1

错误消息突出显示错误的位置

! Missing number, treated as zero.
<to be read again> 
                   \relax 
l.37 \begin{tabular*}{}
                       {@{\extracolsep{\fill}}lll}
?

参数必须是宽度，例如\textwidth不为空。

无关，但不要用于epsfig1993 年以来编写的任何文档中，也不要用于\font乳胶中。

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