需要绘制如下图所示的带有一些箭头的流程图

Question

我对从底部块到顶部块的反馈有问题。有人能帮忙吗？

Answer 1

我建议，为了创建一个简单的图表，没有用户的最小工作示例，使用https://www.mathcha.io/editor它也可以生成您的图像导出来TikZ创建一个flowchart。

\documentclass[a4paper,12pt]{article}
\usepackage{tikz}
\begin{document}
\tikzset{every picture/.style={line width=0.75pt}} %set default line width to 0.75pt        
\begin{tikzpicture}[x=0.75pt,y=0.75pt,yscale=-1,xscale=1]
%uncomment if require: \path (0,471);
\draw   (209.75,108) -- (259.5,155) -- (209.75,202) -- (160,155) -- cycle ;
%Shape: Right Angle [id:dp5480331341730544] 
\draw   (309.07,49.86) -- (209.75,49.86) -- (209.75,108) ;
\draw  [line width=0.75]  (216.83,92.91) .. controls (213.02,97.82) and (210.85,102.72) .. (210.3,107.61) .. controls (209.22,102.73) and (206.49,97.87) .. (202.15,93.02) ;
%Straight Lines [id:da7995893856260996] 
\draw    (309.07,49.86) -- (309.07,432.29) ;
%Straight Lines [id:da25532810350940705] 
\draw    (259.5,155) -- (307.07,154.86) ;
\draw [shift={(309.07,154.86)}, rotate = 539.8299999999999] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;
%Flowchart: Process [id:dp5268131510493652] 
\draw   (158.07,251) -- (263,251) -- (263,302.15) -- (158.07,302.15) -- cycle ;
%Flowchart: Process [id:dp6883798801982977] 
\draw   (158.07,350) -- (263,350) -- (263,401.15) -- (158.07,401.15) -- cycle ;
%Shape: Right Angle [id:dp2176664848726615] 
\draw   (309.07,432.29) -- (210.07,432.29) -- (210.07,401.29) ;
%Straight Lines [id:da17123431430864033] 
\draw    (209.75,202) -- (210.06,248.14) ;
\draw [shift={(210.07,250.14)}, rotate = 269.62] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;
%Straight Lines [id:da10093895111514462] 
\draw    (210.75,302) -- (211.06,348.14) ;
\draw [shift={(211.07,350.14)}, rotate = 269.62] [color={rgb, 255:red, 0; green, 0; blue, 0 }  ][line width=0.75]    (10.93,-4.9) .. controls (6.95,-2.3) and (3.31,-0.67) .. (0,0) .. controls (3.31,0.67) and (6.95,2.3) .. (10.93,4.9)   ;
% Text Node
\draw (215,211) node [anchor=north west][inner sep=0.75pt]   [align=left] {YES};
% Text Node
\draw (267,135) node [anchor=north west][inner sep=0.75pt]   [align=left] {NO};
\end{tikzpicture}
\end{document}

Answer 2

这类帖子太多了。这里再举一个例子。

\documentclass[tikz,border=3mm]{standalone}
\usetikzlibrary{chains,shapes.geometric,quotes}
\begin{document}
\begin{tikzpicture}[node distance =1cm, auto,
    block/.style={draw, rectangle,minimum height=5em,minimum width=11em},
    decision/.style = {diamond,minimum height=7em,minimum width=7em,draw},
    line/.style={thick,-stealth,draw}]
   \begin{scope}[start chain=A going below,nodes={on chain}]
    \node[decision]   {};
    \node[block]   {};
    \node[block]   {};
   \end{scope}
   \path ([xshift=2em]A-2.east) coordinate (aux0);
   \path[line] (A-1.east) edge["YES"]   (A-1.east-|aux0)
    (A-1) edge["NO"]    (A-2) (A-2) edge (A-3)
   (A-3.south) -- ++ (0,-2em)
   -| ([yshift=1em]A-1.north -|aux0) -| (A-1.north);
\end{tikzpicture}
\end{document}

Answer 3

带有环境的简短代码psmatrix：

\documentclass{article}
\usepackage{pst-node}

\begin{document}

\begin{pspicture}
\sffamily
\psset{arrows=->, arrowinset=0.12, shortput=nab}
\begin{psmatrix}[mnode = f, framesize=3.5 2, colsep=2cm]
   [mnode=dia, name=D]{\parbox[t][1.4cm]{1.4cm}{\mbox{}}}& [mnode=p, name=E]\\
 [name=F1]\\
  [name=F2]
\end{psmatrix}
\ncline{D}{F1}^{YES}\ncline{D}{E}^{NO}
\ncline{F1}{F2}
\psset{arm=1cm}
\ncbar[angle=-90,arrows=-]{F2}{E}\ncbar[angle=90]{E}{D}
\end{pspicture}

\end{document