发现用TikZ画流程图其实挺方便的，对于简单的图应该比visio简单。
使用的宏包：
usepackage{tikz,mathpazo}
usetikzlibrary{shapes.geometric, arrows}
usetikzlibrary{calc}
结果示例：
具体代码为：
% 流程图定义基本形状 ikzstyle{startstop} = [rectangle, rounded corners, minimum width = 2cm, minimum height=1cm,text centered, draw = black, fill = red!40] ikzstyle{io} = [trapezium, trapezium left angle=70, trapezium right angle=110, minimum width=2cm, minimum height=1cm, text centered, draw=black, fill = blue!40] ikzstyle{process} = [rectangle, minimum width=3cm, minimum height=1cm, text centered, draw=black, fill = yellow!50] ikzstyle{decision} = [diamond, aspect = 3, text centered, draw=black, fill = green!30] % 箭头形式 ikzstyle{arrow} = [->,>=stealth] egin{figure}[htbp] centering egin{tikzpicture}[node distance=2cm] %定义流程图具体形状 ode (start) [startstop] {start}; ode (pro1) [process, below of=start, yshift=-0.2cm, left of=start, xshift=-1cm] {PROCESS 1}; ode (pro2) [process, right of=pro1, xshift= 4cm] {PROCESS 2}; ode (in1) [io, below of=pro1, yshift= -0.2cm, right of=pro1, xshift=1cm] {IO}; ode (pro3) [process, below of=in1, yshift= -0.2cm] {PROCESS 3}; ode (pro4) [process, below of=pro3, yshift= -0.2cm] {PROCESS 4}; ode (in2) [io, below of=pro4, yshift= -0.2cm] {IO 2}; ode (dec1) [decision, below of=in2, yshift= -0.2cm] {DECISION}; ode (stop) [startstop, below of=dec1] {end}; %连接具体形状 draw [arrow](start) -- (pro1); draw [arrow](start) -- (pro2); draw [arrow](pro1) -- (in1); draw [arrow](pro2) -- (in1); draw [arrow](in1) -- (pro3); draw [arrow](pro3) -- (pro4); draw [arrow](pro4) -- (in2); draw [arrow](in2) -- (dec1); draw [arrow](dec1) -- ($(dec1.east) + (1.5,0)$) node[anchor=north] {NO} |- (pro3); draw [arrow](dec1) -- node[anchor=west] {YES} (stop); end{tikzpicture} caption{label{fig: } 示例图} end{figure}