答案1
正如评论中提到的,可能没有这种预定义的节点。但是很容易创建类似于屏幕截图的东西。
\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{positioning}
\begin{document}
\begin{tikzpicture}[compute/.style={draw,thick,font=\sffamily,
append after command={
(\tikzlastnode.south west) edge[double=gray!50,double distance=3pt,
line cap=rect,
shorten >=-2pt,shorten <=-2pt]
(\tikzlastnode.south east)}}]
\node[compute] (n1) {Node};
\node[compute,right=2cm of n1] (n2) {More text};
\draw[thick,-stealth] (n1) -- (n2);
\end{tikzpicture}
\end{document}