1、latex中插入图片（需要调用\usepackage{graphicx}和\usepackage{float}宏包）
\begin{figure}[H]
\small
\centering
\includegraphics[width=13cm,height=8cm]{fig31}
%\includegraphics[scale=0.6]
\caption{sensitivity analysis results of damping trend model} \label{fig-29}
\end{figure}-
其中[H]是为了固定图片位置，htbp分别为：
h
此处（here）
t
页顶（top）
b
页底（bottom）
p
独立一页（page） - 改变width和height的参数值来改变图片的大小，也可以改变缩放因子scale改变图片大小。
2、两张图片并排插入（调用\usepackage{subfigure}宏包）
\begin{figure}[htbp]
\centering
\subfigure[predicted cumulative diagnosis]{\includegraphics[height=6cm,width=7cm]{fig7}}
\subfigure[forest daily additions]{\includegraphics[height=6cm,width=7cm]{fig8}}
\caption{ change curve of daily new number and cumulative confirmed number}
\label{fig-7}
\end{figure}其中\subfigure[每个图片的标签或说明]{\includegraphics[height=6cm,width=7cm]{fig7}}，没有标签可去掉\subfigure。
3、多张图片并排插入（与两张图片类似）
- 3张照片
\begin{figure}[H]
\centering
{\includegraphics[height=5cm,width=4.7cm]{fig10}}
{\includegraphics[height=5cm,width=4.6cm]{fig11}}
{\includegraphics[height=5cm,width=4.7cm]{fig12}}
\caption{virus transmission process when the infection rate parameter changes}
\label{fig-8}
\end{figure}其中\label{}为标签（通常放在\caption后），\ref{}为引用图片
- 4张图片
\begin{figure}[H]
\centering
{\includegraphics[height=5cm,width=6cm]{fig13}}
{\includegraphics[height=5cm,width=6cm]{fig14}}
{\includegraphics[height=5cm,width=6cm]{fig15}}
{\includegraphics[height=5cm,width=6cm]{fig16}}
\caption{cellular automata grid diagram of different population sizes}
\label{fig-16}
\end{figure}
4、插入普通表格
\begin{table}[htbp]
\centering %居中排版
\setlength{\tabcolsep}{2mm} %调整表格列宽
\caption{Effect of infection rate parameters on prevalence}\label{tab-8}
\begin{tabular}{|c|c|c|c|c|} %l为左对齐，c为居中对齐，r为右对齐
\hline
& Infection rate & cure rate & New patient probability &Stable prevalence \\
\hline
group 1 & 0.1 & 0.1 & 0.01 &0.381 \\
\hline
group 2 & 0.3 & 0.1 & 0.01 & 0.756 \\
\hline
group 3 & 0.5 & 0.1 & 0.01 & 0.831 \\
\hline
\end{tabular}
\end{table}
\begin{table}[htbp]
\centering %居中排版
\setlength{\tabcolsep}{5mm}
\caption{consistency inspection RI value}\label{tab-3}
\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|} %l为左对齐，c为居中对齐，r为右对齐
\hline
n & 1 & 2 & 3 &4&5&6&7&8&9 \\
\hline
RI & 0 & 0 & 0.58 &0.90&1.12&1.24&1.32&1.41&1.45 \\
\hline
\end{tabular}
\end{table}
5、插入三线表
\begin{table}[H]
\centering %居中排版
\caption{Notations used in this paper} \label{tab-2}
%\setlength{\tabcolsep}{12mm}{
\begin{tabularx}{\textwidth}{C{4cm} X} \toprule[1.5pt]
Scale & Meaning \\
\midrule[1.5pt]
1 & Indicates that the two factors have the same importance compared to each other \\
4 & Indicates that the former is slightly more important than the latter \\
5 & Indicates that the former is obviously more important than the latter \\
7 & Indicates that the former is more important than the latter \\
9 & Indicates that the former is more important than the latter \\
2,4,6,8 & Represents the intermediate value of the above adjacent judgment \\
reciprocal & If the factor $i$ to factor $j$ importance ratio is $a_{ij}$ , then the factor $j$ to $i$ factor importance ratio is $a_{ji}=\frac{1}{a_{ij}}$ \\
\bottomrule[1.5pt]
\end{tabularx}
%}
\end{table}
\begin{table*}[!htbp]
\centering %居中排版
\caption{Determination of $SEIR^{CIA}$ model parameter values} \label{tab-7}
%\setlength{\tabcolsep}{12mm}{
\begin{tabularx}{12cm}{X X X} \toprule[1.5pt]
% \begin{tabularx}{\textwidth}{C{4cm} X X} \toprule[1.5pt]
parameter & numerical value & Setting basis \\
\midrule[1.5pt]
$S$ & 1.3$\times$ $10^{7}$ & Xi’an population \\
$E$ &7 & E(0) Latency length \\
$\beta$ & $10^{-6}$ & expert opinion \\
$\rho$ & 0.5 &expert opinion \\
$\phi$ & 0.5 & expert opinion \\
$\epsilon$ & 0.2 & expert opinion \\
$\alpha$ & 1/7 & reference \\
$\omega$ &0.01 & expert opinion \\
$\eta$ & 0.9 & expert opinion \\
\bottomrule[1.5pt]
\end{tabularx}
%}
\end{table*}
居中：
\begin{table*}[!htbp]
\centering %居中排版
\caption{Determination of $SEIR^{CIA}$ model parameter values} \label{tab-7}
%\setlength{\tabcolsep}{12mm}{
\begin{tabularx}{15cm}{C{5cm} C{5cm} C{5cm}} \toprule[1.5pt]
% \begin{tabularx}{\textwidth}{C{4cm} X X} \toprule[1.5pt]
parameter & numerical value & Setting basis \\
\midrule[1.5pt]
$S$ & 1.3$\times$ $10^{7}$ & Xi’an population \\
$E$ &7 & E(0) Latency length \\
$\beta$ & $10^{-6}$ & expert opinion \\
$\rho$ & 0.5 &expert opinion \\
$\phi$ & 0.5 & expert opinion \\
$\epsilon$ & 0.2 & expert opinion \\
$\alpha$ & 1/7 & reference \\
$\omega$ &0.01 & expert opinion \\
$\eta$ & 0.9 & expert opinion \\
\bottomrule[1.5pt]
\end{tabularx}
%}
\end{table*}
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