Graphviz：如果节点已经有标签，如何为箭头添加标签

Question

我正在使用 graphviz 点制作图表。

像这样

digraph protocol {
    label="Protocol workflow";
    node[shape=box, style=rounded];

    a[label="Byte received"];
    b[label="Is start delimiter?", shape=diamond];
    c[label="Recv length [n, 1B]"]; c1[label="Set count=n"];
    d[label="Recv 1 payload byte and decrement count"];
    e[label="count > 0", shape=diamond];
    f[label="Recv CRC [2B]"];
    g[label="Is CRC valid?", shape=diamond];

    a -> b -> c -> c1 -> d -> e -> f -> g;
    e -> d;

}

问题是我需要为某些箭头添加 yes no 标签，但我不知道该怎么做。

Answer 1

您可以像这样向边缘添加标签：

e -> f [label="Yes"];

Graphviz：如果节点已经有标签，如何为箭头添加标签

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