\documentclass[12pt]{standalone}

\usepackage{tikz}
\usepackage{ctex}

\tikzset{tree/.style={every node/.style={circle, draw}}}

\begin{document}
\begin{tikzpicture}

\scoped[tree] \node at (-2,0) {1}
    child {node {2}
        child {node {4}}
        child {node {5}}}
    child {node {3}};

\scoped[tree] \node at (2,0) {2}
    child {node {4}}
    child {node {1}
        child {node {5}}
        child {node {3}}};

\draw[->] (-0.5,-1.25) -- node[above] {右旋} ++(1,0);
\draw[->] (0.5,-1.75) -- node[below] {左旋} ++(-1,0);

\end{tikzpicture}
\end{document}