python进程状态

思考

为啥我VS编辑器里一直在import中报错，但是写到笔记本里就可以直接用

之前俄罗斯方块也是同样问题

安装

pip install transitions

代码

from transitions import Machine

class Progress(object):

pass

model = Progress()

states = ['New', 'Ready', 'Waiting', 'Running', 'Terminated']

transitions=[

{'trigger': 'Admitted', 'source': 'New', 'dest': 'Ready'},

{'trigger': 'Input', 'source': 'Waiting', 'dest': 'Ready'},

{'trigger': 'Output', 'source': 'Waiting', 'dest': 'Ready'},

{'trigger': 'event_completion', 'source': 'Waiting', 'dest': 'Ready'},

{'trigger': 'event_wait', 'source': 'Running', 'dest': 'Waiting'},

{'trigger': 'Input', 'source': 'Running', 'dest': 'Waiting'},

{'trigger': 'Output', 'source': 'Running', 'dest': 'Waiting'},

{'trigger': 'Interrupt', 'source': 'Running', 'dest': 'Ready'},

{'trigger': 'Dispatch', 'source': 'Ready', 'dest': 'Running'},

{'trigger': 'Exit', 'source': 'Running', 'dest': 'Terminated'}]

machine=Machine(model=model,states=states,transitions=transitions,initial='New')

print(model.state)

model.Admitted()

print(model.state)

model.Dispatch()

print(model.state)

model.event_wait()

print(model.state)

model.Output()

print(model.state)

model.Dispatch()

print(model.state)

model.Exit()

print(model.state)