Graphviz子图无法显示
我正在尝试用点创建两个子图的图。代码如下: digraph G { subgraph step1 { style=filled; node [label="Compiler"] step1_Compiler; node [label="Maschine"] step1_Maschine; color=lightgrey; } subgraph step2 { style=filled; color=lightgrey; node [label="Interpretierer"] step2_Interpretierer; node [label="Maschine"] step2_Maschine; label="Virtuelle Maschine"; } "Programm (Java)" -> step1_Compiler; step1_Compiler -> step1_Maschine; step1_Maschine -> "Bytecode"; "Bytecode" -> step2_Interpretierer; step2_Interpretierer -> step2_Maschine; step2_Maschine -> "Ergebnis"; } …