LaTeX Subfigure 中间加入垂直线

近期论文用到这个效果。 先实现下， 嘿嘿。

documentclass{article}
usepackage{tikz,lscape,amsmath}
usepackage[margin=1cm]{geometry}
usetikzlibrary{matrix}


egin{document}

defarraystretch{0.5}
	ikzset{ 
table/.style={
  matrix of nodes,
  row sep=-pgflinewidth,  % <-- This adjusts the row separation
  column sep=pgflinewidth,% <-- This adjusts the column separation
  nodes={rectangle,draw=none, text width=2cm, align=center,inner sep=2pt,outer sep=0pt},
%  nodes in empty cells
  }
}
egin{tikzpicture}

matrix (mat) [table]
{
includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-B}  
& includegraphics[width=2cm]{example-image-B} &  includegraphics[width=2cm]{example-image-B} &  includegraphics[width=2cm]{example-image-B}\
includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-A}  &includegraphics[width=2cm]{example-image-A}&includegraphics[width=2cm]{example-image-A}  &includegraphics[width=2cm]{example-image-B}  & includegraphics[width=2cm]{example-image-B} &  includegraphics[width=2cm]{example-image-B}&  includegraphics[width=2cm]{example-image-B}\
includegraphics[width=2cm]{example-image-A} & includegraphics[width=2cm]{example-image-A}  &includegraphics[width=2cm]{example-image-A}&includegraphics[width=2cm]{example-image-A}  &includegraphics[width=2cm]{example-image-B}  & includegraphics[width=2cm]{example-image-B} &  includegraphics[width=2cm]{example-image-B}&  includegraphics[width=2cm]{example-image-B}\
includegraphics[width=2cm,height=2.3cm]{example-image-A} & includegraphics[width=2cm,height=2.3cm]{example-image-A}  &includegraphics[width=2cm,height=2.3cm]{example-image-A}&includegraphics[width=2cm,height=2.3cm]{example-image-A}  &includegraphics[width=2cm,height=2.3cm]{example-image-B}& includegraphics[width=2cm,height=2.3cm]{example-image-B} &  includegraphics[width=2cm,height=2.3cm]{example-image-B} &  includegraphics[width=2cm,height=2.3cm]{example-image-B}\
};
draw[red,dashed,very thick](mat-1-4.north east)--(mat-4-4.south east);  %<-- This is for the red line in the middle
end{tikzpicture}


end{document}

效果：

大家学习吧。

 可是我自己用在论文中有个bug。 大家測试下， 有什么改进的方法哟。 欢迎指出来哟。