答案1
因此我按照@Celdor 的建议查阅了 TikZ 手册,并进行了以下操作
\documentclass{article}
\usepackage{tikz}
\begin{document}
\begin{tikzpicture}
\draw [cyan,line width=1mm] (0,0) .. controls (3,5) and (6,-1) .. (7,2) node (a1) [pos=0.1,circle,draw,inner sep=0pt,minimum size=5pt,fill]{} node (a2) [pos=0.3,circle,draw,inner sep=0pt,minimum size=5pt,fill]{} node (a3) [pos=0.8,circle,draw,inner sep=0pt,minimum size=5pt,fill]{} ;
\end{tikzpicture}
\end{document}
谢谢!