Graphviz - A spetacular tool for drawing flowchart

该死，在学校的时候用的挺熟的，可昨天要用竟然想了半天没想到叫什么名字！！

digraph G {
node [fontsize = 14, fontname =STKaiti, fontcolor = blue];
size ="4,4";
rankdir=LR;
平抗方案 [shape=box];
平抗方案 -> {干抗; 油抗};
干抗 -> "P30+\nN75×4" [label = "A1"];
干抗 -> "P75×2+\nN75×2" [label = "A2"];
干抗 -> "P75+\nN75×3" [label = "A3"];
油抗 -> "P300+\nN0" [label = "B1"];
油抗 -> "P30+\nN270" [label = "B2"];
}

$cccxxx> dot -Tpdf flowchart.dot -o flowchart.pdf