![用分层标记绘制箭头连续体](https://linux22.com/image/408421/%E7%94%A8%E5%88%86%E5%B1%82%E6%A0%87%E8%AE%B0%E7%BB%98%E5%88%B6%E7%AE%AD%E5%A4%B4%E8%BF%9E%E7%BB%AD%E4%BD%93.png)
答案1
回答这些问题最困难的部分是从屏幕截图中输入文本(并尝试解读它们)。
\documentclass[tikz, margin=3mm]{standalone}
\usepackage{enumitem}
\usetikzlibrary{positioning}
\begin{document}
\begin{tikzpicture}[every pin/.append style={text width=8em},
every pin edge/.style={draw},node distance=5em]
\begin{scope}[local bounding box=bb]
\setlist{topsep=0em,itemsep=0.2ex}
\node[pin=below:{\begin{itemize}
\item[~] Syntax
\end{itemize}}](COP){COP};
\node[right=of COP,pin=below:{\begin{itemize}
\item[~] Syntax
\item[+] Normal
\end{itemize}}](PAR){PAR};
\node[right=of PAR,pin=below:{\begin{itemize}
\item[~] Syntax
\item[+] Normal
\item[+] obc
\end{itemize}}](LOT){LOT};
\end{scope}
\draw[thick,-stealth]
([yshift=1em]bb.north west) node[above right]{$-$}
-- ([yshift=1em]bb.north east) node[above left,align=center]{Change\\ $+$};
\end{tikzpicture}
\end{document}