带有多个箭头的 Tikz 块

Question

我正在尝试绘制一个简单的图表，该图表需要多个箭头表示其输入和输出，但我不知道如何将箭头放置在块中心以外的其他地方。有没有直接的方法可以做到这一点？

Answer 1

以薛定谔的猫的评论作为起点：

\documentclass[tikz,border=3.14mm]{standalone} 
\usetikzlibrary{arrows.meta,
                positioning} 

\begin{document} 
    \begin{tikzpicture}[
node distance = 2mm and 8mm,
     N/.style = {draw, minimum width=12mm, font=\sffamily},
   arr/.style = {draw=blue!60, -{Triangle[fill=blue!60]}}, 
                        ] 
\node (N) [N,rounded corners=2mm, minimum size=24mm]    {Network}; 
\node (a) [N, above left=of N.south west]  {A}; 
\node (d) [N, below left=of N.north west]  {D}; 
\node (b) [N, above right=of N.south east] {B};
\node (c) [N, below right=of N.north east] {C};
\draw[arr]  (a) edge (a -| N.west) 
            (d -| N.west) edge (d)
            (b -| N.east) edge (b)
            (c)  to  (c -| N.east);
\coordinate[right=of b] (aux);
\draw[arr]  (b) -- (aux) |- (c);
    \end{tikzpicture} 
\end{document}