您可以使用graphs
Ti 附带的库钾Z:
\documentclass[tikz, border=10mm]{standalone}
\usetikzlibrary{graphs, graphs.standard}
\begin{document}
\begin{tikzpicture}
\graph[clockwise, n=3, V={i, j, k}, edge={bend left=45, -stealth}] { subgraph C_n };
\end{tikzpicture}
\end{document}