答案1
你可以使用\input pstricks.tex
它与纯 TeX 兼容。可以查看一些流程图这里:实际上并不像 nassi-shneiderman 那样是表格,但应该很容易实现。以下是您的示例的开始:
\input pstricks
\input pst-node
\pspicture(0,1)(10,-7)
\rput(5,0){\rnode{A}{\psframebox[framearc=0.3]{Your reall long text}}}
\rput(5,-1){\rnode{B}{\psframe(-5,0)(5,-1)\rput(0,-0.5){And the next one}}}
\ncline[arrowscale=2,arrows=->,angleA=-90,angleB=90]{A}{B}
\psframe(0,-1)(10,-7) \rput(6,-2.5){foo}
\psline(1,-4)(1,-2)(10,-2) \rput(6,-3.5){bar}
\psline(1,-3)(10,-3) \rput(6,-4.5){foo bar}
\psline(0,-4)(10,-4)
\psline(0,-5)(10,-5)
\endpspicture
\bye