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一些LaTeX中表格的使用方法如下：

1.table

\documentclass{article}\begin{document}\begin{table}[h]\centering\begin{tabular}{|l|c|c|}\hlineSetting&\multicolumn{2}{c|}{A4 size paper}\\\hline&mm&inches\\Top&25&1.0\\Bottom&25&1.0\\Left&20&0.8\\Right&20&0.8\\Column Width&82&3.2\\Column Spacing&6&0.25\\\hline\end{tabular}\caption{Margin settings for A4 size paper}\label{tab:Margin_settings}\end{table}\end{document}

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2.tabular

\begin{tabular}{|c|c|c|}\hline 2&9&4\\\hline 7&5&3\\\hline 6&1&8\\\hline
\end{tabular}

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例子里面的|c|这样的，那个地方叫做导言区，来约定表格的每列属性的：

l	left-justified column
c	centered column
r	right-justified column
b	bottom
c	center (default)
t	top
p{'width'}	paragraph column with text vertically aligned at the top
m{'width'}	paragraph column with text vertically aligned in the middle (requires array package)
b{'width'}	paragraph column with text vertically aligned at the bottom (requires array package)
|	vertical line
||	double vertical line

另外，还有一些常用的命令：

&	column separator
\\	start new row (additional space may be specified after \\ using square brackets, such as \\[6pt]
\hline	horizontal line
\newline	start a new line within a cell (in a paragraph column)
\tabularnewline	start a new line within a cell (in a paragraph column) instead of \\ to avoid a Misplaced \noalign error in the tabular
\cline{i-j}	partial horizontal line beginning in column i and ending in column j

除了最简单的用例外，还可以这样：

% example 1:
\begin{center}\begin{tabular}{ | l || c || r }\hline1 & 2 & 3 \\ \hline4 & 5 & 6 \\ \hline \hline7 & 8 & 9 \\\hline\end{tabular}
\end{center}

example 1

% example 2:
%\multicolumn{n}{format}{item}
\begin{tabular}{|c|c|c|}\hline \multicolumn{3}{|c|}{?}\\\hline 7&5&3\\\hline 6&1&8\\\hline
\end{tabular}

example 2

% example 3:
\begin{tabular}{|r|l|}\hline7C0 & hexadecimal \\3700 & octal \\ \