\include{fl_head}
\begin{document}
\include{fl}
\begin{tikzpicture}[node distance=2cm]
\node(start)[startstop]{start};
\node(in1)[io,below of=start]{input};
\node(pro1)[process,below of=in1]{process1};
\node(dec1)[decision,below of=pro1]{decision1};
\node(pro2a)[process,below of=dec1]{pro2a};
\node(pro2b)[process,right of=dec1,xshift=2cm]{process2b};
\node(out1)[io,below of=pro2a]{out1};
\node(stop)[startstop,below of=out1]{stop};
\draw[arrow](start)--(in1);
\draw[arrow](in1)--(pro1);
\draw[arrow](pro1)--(dec1);
\draw[arrow](dec1)--node[anchor=east]{yes}(pro2a);
\draw[arrow](dec1)--node[anchor=north]{no}(pro2b);
\draw[arrow](pro2b)|-(pro1);
\draw[arrow](pro2a)--(out1);
\draw[arrow](out1)--(stop);
\end{tikzpicture}
\end{document}
今天用時(shí)13分鐘。下次能夠提升的就會(huì)很少了弟断。