# https://hifpga.com/fsm/ #状态机示例 digraph fsm { "a" -> "a" [label= "0/0"] "a" -> "b" [label= "1/0"] "b" -> "c" [label= "0/0"] "b" -> "d" [label= "1/0"] "c" -> "a" [label= "0/0"] "c" -> "d" [label= "1/0"] "d" -> "e" [label= "0/0"] "d" -> "f" [label= "1/1"] "e" -> "a" [label= "0/0"] "e" -> "f" [label= "1/1"] "f" -> "f" [label= "1/1"] "f" -> "g" [label= "0/0"] "g" -> "a" [label= "0/0"] "g" -> "f" [label= "1/1"] }