One 、 picture

The whole layout
Long 18cm

\begin{
    figure*}[htbp]
	\centerline{
    \includegraphics{
    fig3.png}}
	\caption{
    Overview of model}
	\label{
    fig}
\end{
    figure*}

Half a page
Long 8.5cm
Get rid of *

Two 、 form

https://www.tablesgenerator.com/latex_tables
Website preset format
Import three line table macro package

\usepackage{
    booktabs}
		\toprule[2pt]   % First line 
		\toprule[1.5pt]   % First line 
		\midrule[1.5pt]
		\bottomrule[2pt]
		\hline\hline  % Double line 

table* Double column 
\centering In the middle 
\begin{
    tabular}{
    c|cc|cc|cc|cc|cc|cc|cc} There are no vertical lines on both sides 
\rule{
    0pt}{
    10pt} % Change row height 

3、 ... and 、 Bold and italic

\textit{
    }
\textbf{
    }
 Will compiler XeLaTex Change it to PdfLaTex

Four 、 reference

\usepackage[numbers,sort&compress]{
    natbib}

\nocite{
    *}     		  % There are no references with citation labels 
\bibliographystyle{
    plain}    % Citation style 
\bibliography{
    cankaowenxian}	%bib file name , At the same time, this statement determines the location of the reference 
plain Can be replaced by IEEEtran
 Start with \usepackage[numbers,sort&compress]{
    natbib} Ensure that the compilation is correct 
 Comment out can make the font smaller 
 The order of newly added references is wrong   You can correct your mistakes bib Document name   Change back and recompile