代码语言：javascript复制
from graphviz import Graph
g = Graph('G', filename='process.gv', engine='sfdp')
g.edge('run', 'intr')
g.edge('intr', 'runbl')
g.edge('runbl', 'run')
g.edge('run', 'kernel')
g.edge('kernel', 'zombie')
g.edge('kernel', 'sleep')
g.edge('kernel', 'runmem')
g.edge('sleep', 'swap')
g.edge('swap', 'runswap')
g.edge('runswap', 'new')
g.edge('runswap', 'runmem')
g.edge('new', 'runmem')
g.edge('sleep', 'runmem')
g.view()
from graphviz import Digraph
f = Digraph('finite_state_machine', filename='fsm.gv')
f.attr(rankdir='LR', size='8,5')
f.attr('node', shape='doublecircle')
f.node('LR_0')
f.node('LR_3')
f.node('LR_4')
f.node('LR_8')
f.attr('node', shape='circle')
f.edge('LR_0', 'LR_2', label='SS(B)')
f.edge('LR_0', 'LR_1', label='SS(S)')
f.edge('LR_1', 'LR_3', label='S($end)')
f.edge('LR_2', 'LR_6', label='SS(b)')
f.edge('LR_2', 'LR_5', label='SS(a)')
f.edge('LR_2', 'LR_4', label='S(A)')
f.edge('LR_5', 'LR_7', label='S(b)')
f.edge('LR_5', 'LR_5', label='S(a)')
f.edge('LR_6', 'LR_6', label='S(b)')
f.edge('LR_6', 'LR_5', label='S(a)')
f.edge('LR_7', 'LR_8', label='S(b)')
f.edge('LR_7', 'LR_5', label='S(a)')
f.edge('LR_8', 'LR_6', label='S(b)')
f.edge('LR_8', 'LR_5', label='S(a)')
f.view()
from graphviz import Digraph
g = Digraph('G', filename='cluster.gv')
# NOTE: the subgraph name needs to begin with 'cluster' (all lowercase)
# so that Graphviz recognizes it as a special cluster subgraph
with g.subgraph(name='cluster_0') as c:
c.attr(style='filled', color='lightgrey')
c.node_attr.update(style='filled', color='white')
c.edges([('a0', 'a1'), ('a1', 'a2'), ('a2', 'a3')])
c.attr(label='process #1')
with g.subgraph(name='cluster_1') as c:
c.attr(color='blue')
c.node_attr['style'] = 'filled'
c.edges([('b0', 'b1'), ('b1', 'b2'), ('b2', 'b3')])
c.attr(label='process #2')
g.edge('start', 'a0')
g.edge('start', 'b0')
g.edge('a1', 'b3')
g.edge('b2', 'a3')
g.edge('a3', 'a0')
g.edge('a3', 'end')
g.edge('b3', 'end')
g.node('start', shape='Mdiamond')
g.node('end', shape='Msquare')
g.view()
from graphviz import Digraph
g = Digraph('G', filename='cluster.gv')
# NOTE: the subgraph name needs to begin with 'cluster' (all lowercase)
# so that Graphviz recognizes it as a special cluster subgraph
with g.subgraph(name='cluster_0') as c:
c.attr(style='filled', color='lightgrey')
c.node_attr.update(style='filled', color='white')
c.edges([('a0', 'a1'), ('a1', 'a2'), ('a2', 'a3')])
c.attr(label='process #1')
with g.subgraph(name='cluster_1') as c:
c.attr(color='blue')
c.node_attr['style'] = 'filled'
c.edges([('b0', 'b1'), ('b1', 'b2'), ('b2', 'b3')])
c.attr(label='process #2')
g.edge('start', 'a0')
g.edge('start', 'b0')
g.edge('a1', 'b3')
g.edge('b2', 'a3')
g.edge('a3', 'a0')
g.edge('a3', 'end')
g.edge('b3', 'end')
g.node('start', shape='Mdiamond')
g.node('end', shape='Msquare')
g.view()
