如何在 ACM 期刊双栏模板中将 4 个带子标题的图片倒置

Question

如何在 ACM ACR 这个模板中添加这样的图片https://www.ctan.org/pkg/acmart。. minipage 和 subfig subcaption 包在我的模板中不起作用，我收到此错误 LaTeX 错误：环境子图未定义。这是我预期的输出

这是我按照此代码得到的输出： [![在此处输入图像描述][2]][2]

\RequirePackage{comment}
\RequirePackage{algorithm}
\RequirePackage{algpseudocode}
\RequirePackage{graphicx}
\RequirePackage{booktabs}
\RequirePackage{makecell}
\RequirePackage{tabularx}
\RequirePackage{subcaption}
\RequirePackage{caption}
\RequirePackage{subcaption}
    \begin{figure}
  \begin{minipage}{0.45\columnwidth}
    \includegraphics[width=\textwidth]{example-image-a}
    \caption*{MNIST-O}
  \end{minipage}
  \hfill
  \begin{minipage}{0.45\columnwidth}
    \includegraphics[width=\textwidth]{example-image-b}
    \caption*{F-MNIST}
  \end{minipage} 
  
  \begin{minipage}{0.45\columnwidth} 
    \includegraphics[width=\textwidth]{example-image-c} 
    \caption*{CIFAR-10} 
  \end{minipage}  
  \hfill 
  \begin{minipage}{0.45\columnwidth} 
    \includegraphics[width=\textwidth]{example-image-a} 
    \caption*{HP News} 
  \end{minipage}
  \caption{Accuracy}
\end{figure}

目前没有子标题，其为图 5、图 6、图 7 和图 8、图 9

Answer 1

这是否符合要求

平均能量损失

\documentclass[acmsmall, screen, ]{acmart}
\usepackage{subcaption, lipsum}
\begin{document}
    
    \title{Title}
    \author{author 1}
    \begin{abstract}
        The abstract is a short summary of the work to be presented in the article.
    \end{abstract}
    
    \maketitle
    \lipsum[1][4-6]\par
    
    \begin{figure}[h]
        \centering
        \begin{subfigure}{0.48\textwidth}
            \includegraphics[width=\textwidth]{example-image-a}
            \subcaption{The 1907 Franklin Model D roadster.}
        \end{subfigure}
        % <— this is important. There should be no empty line here. 
        \begin{subfigure}{0.48\textwidth}
            \includegraphics[width=\textwidth]{example-image-b}
            \subcaption{The 1907 Franklin Model D roadster.}
        \end{subfigure}
        \\
        \begin{subfigure}{0.48\textwidth}
            \includegraphics[width=\textwidth]{example-image-c}
            \subcaption{The 1907 Franklin Model D roadster.}
        \end{subfigure}
        %
        \begin{subfigure}{0.48\textwidth}
            \includegraphics[width=\textwidth]{example-image-a}
            \subcaption{The 1907 Franklin Model D roadster.}
        \end{subfigure}
        \caption{Wow or whatever}
    \end{figure}
    \lipsum[5]
\end{document}