轉自：http://blog.sina.com.cn/s/blog_5e16f1770102dvai.html
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常見數學公式問題集下載
平時投稿或者寫文章，尤其是雙欄模式下總是想要把圖片放在我們想要她在的位置，非常考驗我們的代碼水平，特別是下面這種情況：雙欄模式下插入單欄圖，一般情況下，期刊給出的是使用\begin{figure*}[t] .... \end{figure*} 進而，圖片會放到下一頁置頂位置，很多用戶想把圖片放到當前頁底部該怎麼辦呢？
【解決方案】
演示代碼如下：
\documentclass[a4paper,10pt,twocolumn]{article}
\usepackage{graphicx,dblfloatfix,caption,afterpage}
\usepackage[english]{babel}
\usepackage{blindtext}
\begin{document}
\tableofcontents
\section{Zero}
\blindtext[1]
\blindtext[1]
%\afterpage{\newpage} % bottom on third page
%\afterpage{\clearpage} % cuts a column, bottom on third page
\blindtext[1]
\blindtext[1]
\begin{figure}[!h]
\centering
\includegraphics{test.jpg}
\caption{test picture 1}
\label{fig:1}
\end{figure}
\blindtext[1]
\begin{figure}[!h]
\centering
\includegraphics{test.jpg}
\caption{test picture 2}
\label{fig:2}
\end{figure}
%\afterpage{\newpage} % bottom on third page
%\afterpage{\clearpage} % bottom on third page
% save counter
\newcounter{savefig}
\setcounter{savefig}{\value{figure}}
% step preemptively
\stepcounter{figure}
% figure* MUST be declared before first \newpage!
% so in this case, it is declared (still) within pg1.
\begin{figure*}[!b]
\centering
\includegraphics{test.jpg}
\caption{test picture dbl}
\label{fig:dbl}
\end{figure*}
% reset counter
\setcounter{figure}{\value{savefig}}
\afterpage{\newpage} % first newpage: goes from pg1:col2 to pg2:col1
\blindtext[1]
%\afterpage{\clearpage % alone
%}
%\newpage~\newpage % clears everything prematurely, but manages to put minipage and bottom on same page
%\afterpage{\clearpage} %
\section{One}
A bit of bla bla bla here...
A bit of bla bla bla...
\begin{figure}[h]
\centering
\includegraphics{test.jpg}
\caption{test picture 3}
\label{fig:3}
\end{figure}
%\noindent\begin{minipage}{\columnwidth}
%\captionsetup{type=figure}
% \centering
% \includegraphics{test.jpg}
% \caption{test picture 3}
%\label{fig:3}
%\end{minipage}
\blindtext[1]
\afterpage{\newpage} % second newpage: goes from pg2:col1 to pg2:col2
\blindtext[1]
\section{Two}
\blindtext[1]
\afterpage{\newpage} % third newpage: goes from pg2:col2 to pg3:col1; AND
% seemingly this 'flushes' the bottom float, which will now appear on pg2!
% step post-emptively
% (as here the bottom, Fig4 should be inserted - so we're ready for Fig5 next)
\stepcounter{figure}
\blindtext[1]
\blindtext[1]
\begin{figure}[h]
\centering
\includegraphics{test.jpg}
\caption{test picture 5}
\label{fig:5}
\end{figure}
\blindtext[1]
\end{document}
效果哦：
2、更新20200105
關於cas-dc模板標題不居中問題的解決。
%\begin{figure*}
{figure*}
% \begin{figure*}[pos=b,width=\textwidth]% 需要這一句解決問題
\begin{figure*}[pos=htb]
\centering
\includegraphics[scale=0.62]{figs/OverviewFig.pdf}
\caption{Simulation results on a T1-weighted simulated brain MR image (9\% noise, 40\% IIH). Left to right: Original image, Bias field (IIH), CSF, GM, and WM regions, IIH-corrected
image and final segmented image.}
\label{Fig:OverviewFig}
\end{figure*}