%我的 tex 模版

%我的 tex 模版
\documentclass[UTF8,a1paper,landscape]{ctexart}%UTF8 中文支持,a1paper 纸张大小,landscape 横向版面,ctexart 中文文章
\usepackage{tikz}%图包
\usetikzlibrary{trees}%树包

\usepackage{geometry}%页边距设置
\geometry{top=5cm,bottom=5cm,left=5cm,right=5cm}

\usepackage{fancyhdr}%页头页尾页码设置
\pagestyle{fancy}
\begin{document}
    \title{标题}
    \author{作者}
    \maketitle
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    \newpage%另起一页
    \begin{center}%居中
        \begin{tikzpicture}
        [
        grow=right,
        r/.style={rectangle,draw,fill=red!20,align=center,rounded corners=.8ex},
        g/.style={rectangle,draw,fill=green!20,align=center,rounded corners=.8ex},
        b/.style={rectangle,draw,fill=blue!20,align=center,rounded corners=.8ex},
        grow via three points={one child at (0.5,-0.7) and two children at (0.5,-0.7) and (0.5,-1.4)},
        edge from parent path={(\tikzparentnode.south)|-(\tikzchildnode.west)},
        ]%属性定义
        %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        用户编辑处
        %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
        \end{tikzpicture}
    \end{center}
    %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\end{document}