\documentclass[12pt]{standalone}

\usepackage{tikz}
\usepackage{ctex}

\usetikzlibrary{graphs}

\begin{document}
\begin{tikzpicture}[every node/.style={circle,draw}]

\graph[counterclockwise,chain polar shift=(0:2cm),radius=0,n=5] {
    1 -- {2,3,4,5,6}
};

\end{tikzpicture}
\end{document}
