我想在我的代码中连接块B和M，而不让连接线“切割”F。如何强制连接放大连接线并避开F？
\documentclass[11pt]{standalone}
\usepackage{tikz}
\usetikzlibrary{calc,shapes.geometric,arrows,positioning,intersections}
\begin{document}
\begin{tikzpicture}[auto,node distance=1cm,thick,
main node/.style={black,draw,minimum width=1.5cm,minimum height=0.75cm}]%circle,draw,font=\sffamily\Large\bfseries}]
\node[main node] (L) {L};
\node[main node] (F) [left = of L ] {F};
\node[main node] (C) [below = of F ] {M};
\node[main node] (B) [right = of L ] {B};
\node[main node] (AP) [below = of B ] {AP};
\node[main node] (A) [below = of L ] {A};
\node[main node] (H) [right = of B ] {H};
\node[main node] (G) [right = of H] {G};
\node[main node] (BR) …