兩行 5 個子圖，3 和 2，第二行不居中

Question

\begin{figure}[h] % figure will span both columns in article
\centering
    \setkeys{Gin}{width=\linewidth} % common settings of images widths
\begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/a.png}
    \caption{cap1}
    \label{1}
\end{subfigure}%
    \hfill
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/s.png}
    \caption{cap2}
    \label{2}
\end{subfigure}%
    \hfill
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/d.png}
    \caption{cap3}
    \label{3}
\end{subfigure}%
\hfill
\centering
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/f.png}
    \caption{cap4}
    \label{4}
\end{subfigure}%
    \hfill
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/g.png}
    \caption{cap5}
    \label{5}
\end{subfigure}%
    \caption{figure}
    \label{total}
\end{figure}

我想要每個子圖的標題和標籤，此程式碼的唯一缺陷是第二行中的 2 個子圖未居中，它們通過形成一個大空間來填充整行謝謝！

Answer 1

一些建議：

• 消除兩個都 \centering指示。第一個沒有做任何有用的事情，第二個與您在帖子標題中所說的想要實現的目標背道而馳，即。，「第二行不居中」。

• 更換最後的 \hfill指令與\hspace{0.05\textwidth}%;符號%很重要。為什麼0.05\textwidth？在第 1 行中，三個圖佔據0.9\textwidth;這留下了0.1\textwidth兩個圖間空白間隙。一半0.1\textwidth是0.05\textwidth.

• 將倒數第二條指令替換\hfill為空白行和一條\bigskip指令。

\documentclass[demo]{article} % remove 'demo' option in final document
\usepackage{graphicx,subcaption}
\begin{document}

\begin{figure}[h] % figure will span both columns in article % really?

%%\centering % <-- no need to use \centering
\setkeys{Gin}{width=\linewidth} % common settings of images widths

\begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/a.png}
    \caption{cap1}
    \label{1}
\end{subfigure}%
    \hfill
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/s.png}
    \caption{cap2}
    \label{2}
\end{subfigure}%
    \hfill
    \begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/d.png}
    \caption{cap3}
    \label{3}
\end{subfigure}

\bigskip % <-- leave a blank line (to cause a line break) and '\bigskip'
%% \centering  % <-- this instruction is counterproductive
\begin{subfigure}{0.3\linewidth}% <-- the "%" symbol is needed
    \includegraphics{./Figures/f.png}
    \caption{cap4}
    \label{4}
\end{subfigure}%
\hspace{0.05\textwidth}% <-- instead of '\hfill'
\begin{subfigure}{0.3\linewidth}
    \includegraphics{./Figures/g.png}
    \caption{cap5}
    \label{5}
\end{subfigure}

\caption{A figure with five subfigures}
\label{fig:total}

\end{figure}

\end{document}