liuchengtu.tex

%天津大学仁爱学院14管理系金融工程-唐绍东
%2017高考全国3卷理科数学流程图
\documentclass[tikz]{standalone}
\usetikzlibrary{shapes.geometric}
\usetikzlibrary{arrows,arrows.meta}
\usepackage{xeCJK}%\usepackage{ctex}
\setCJKmainfont{FZShuSong-Z01S}%方正书宋简体
\usepackage{amsmath}
\everymath{\displaystyle}
\usepackage{unicode-math}
\setmainfont{XITS}
\setmathfont{XITS Math}
\begin{document}
% 流程图定义基本形状
\tikzstyle{ellipse}=[draw, rectangle, minimum width=2.8em, rounded corners=6pt,line width=0.5pt]% minimum height=1.5em, fill=red!20
\tikzstyle{pxsbx}=[trapezium, trapezium left angle=75, trapezium right angle=105, minimum width=3em, text centered, draw = black, fill=white,line width=0.5pt]
\tikzstyle{lingxing}=[draw,diamond,shape aspect=3,inner sep = 0.4pt,thick,font=\itshape,line width=0.5pt]%,minimum size=8mm
\begin{tikzpicture}[node distance=1.2cm]
%定义流程图具体形状
\node (start) [ellipse,inner sep=1.5pt] {开始};
\node (srn) [pxsbx, below of=start,node distance=1.0cm,inner sep=1.5pt] {输入$\!N$};
\node (yizhi) [minimum height=0cm,draw, below of=srn,node distance=1.0cm,inner sep=2pt] {$t=1$, $M=100$, $S=0$};
\node (tiaojian) [lingxing,draw, below of=yizhi,inner sep=1.5pt] {$t\leqslant N$};
\node (shi) [minimum height=0cm,draw, below of=tiaojian,inner sep=2pt] {$S=S+M$};
\node (fuzhi1) [minimum height=0cm,draw, below of=shi,inner sep=2pt] {$M=-\dfrac{M}{10}$};
\node (fuzhi2) [minimum height=0cm,draw, below of=fuzhi1,inner sep=2pt] {$t=t+1$};
\node (fou) [right of=tiaojian,xshift=1cm,coordinate]  {}; 
\node (shuchus) [below of=fou,draw,pxsbx,inner sep=1.5pt,node distance=1.0cm]  {输出$\!S$}; 
\node (end) [below of=shuchus,draw,ellipse,inner sep=1.5pt,node distance=1.0cm]  {结束}; 
%连接具体形状
\draw[arrows={-Stealth[scale=0.8]}](start) -- (srn);
\draw[arrows={-Stealth[scale=0.8]}](srn) -- (yizhi) ;
\path (yizhi) -- (tiaojian) coordinate[pos=0.5](yt);
\node [left of=yt,coordinate,node distance=2.3cm] (c1)  {}; 
\draw[arrows={-Stealth[scale=0.8]}](yizhi) -- (tiaojian);
\draw[arrows={-Stealth[scale=0.8]}](tiaojian) -- node[right=-0.5mm,blue]{是}(shi);
\draw[arrows={-Stealth[scale=0.8]}](shi) -- (fuzhi1);
\draw[arrows={-Stealth[scale=0.8]}](fuzhi1)--(fuzhi2);
\draw[arrows={Stealth[scale=0.8]-}](yt)--(c1);
\draw(c1)|- (fuzhi2);
\draw(tiaojian)-- node[midway,above=-1mm,blue]{否}(fou);
\draw[arrows={-Stealth[scale=0.8]}](fou)--(shuchus);
\draw[arrows={-Stealth[scale=0.8]}](shuchus)--(end);
\end{tikzpicture}
\end{document}