如何增加 \node 中矩形和圆形的大小以及矩形内的垂直线

Question

\documentclass[12pt,table]{article}
\begin{document}
\usepackage{tikz}
\usepackage{pgfplots}
\usetikzlibrary{arrows,positioning} 
\tikzstyle{arrow}=[thick,->,>=stealth]
\usepackage{subcaption}
\usetikzlibrary{shapes}

\begin{tikzpicture}[scale=1.2]

\path (4,2) node [cloud, draw,cloud puffs=9,cloud puff arc=90, aspect=1.7, inner ysep=.3em](F1){}
(5,2) node[circle,draw,circle = 1cm](F2){}
(5,2.3) node[align = center]{}
(6,2) node[rectangle,draw](F3){}
(6,1.75) node[align = center]{}
(7,2) node[circle,draw](F4){}
(7,2.25) node[align = center]{}
(8,2) node[cloud, draw,cloud puffs=9,cloud puff arc=90, aspect=1.7, inner ysep=.3em](F5){}
(3.5,1.5) node[circle,draw,circle = 1cm](F6){}
(3.5,1.75) node[align = center]{};
\draw (F1) -- (F2);
\draw[->](F2)--(F3);
\draw(F3) -- (F4);
\draw[->](F4)--(F5);
\end{tikzpicture}
\end{document}

Answer 1

您可以定义节点的最小大小：

\documentclass[tikz, margin=3mm, tikz]{standalone}
\usetikzlibrary{arrows.meta,
                chains,
                positioning,
                shapes.multipart, shapes.symbols}

\begin{document}
    \begin{tikzpicture}[
node distance = 9mm and 7mm,
  start chain = F going right,
   arr/.style = {-Straight Barb},
  base/.style = {draw, semithick, 
                 minimum size=3em}, % <--- define size of nodes
     C/.style = {base, circle},
  MPNh/.style = {base, % Multi Part Node horizontal
                 rectangle split, rectangle split parts=4,
                 rectangle split horizontal}, 
 oblak/.style = {base, minimum width=4em,
                 cloud, cloud puffs=9, cloud puff arc=150, aspect=2},
                        ]
    \begin{scope}[nodes={on chain, join=by arr}]
\node [oblak]   {};
\node [C]       {};
\node [base]    {};
\node [C]       {};
\node [oblak]   {};
    \end{scope}
\node [C, above=of F-3] {};
    \end{tikzpicture}
\end{document}

• 在上面的 MWE 中，我擅自使用tikz库chains及其宏在链中绘制节点join。
• 由于您的前言未知，我使用standalone。您可以将其替换为 ehatever，但是，在这种情况下，您需要加载tikz包并删除margin选项。

编辑： 在矩形节点处添加垂直线，即用节点代替矩形multipart。