python进程模拟

代码内容

 

#引入外部变量

from transitions import Machine

#定义一个我自己的属性

class Matter(object):

    pass

#创建我自己的一个对象

model = Matter()

#对于状态的些定义

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

#定义状态转移

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'}]

# 初始化

machine = Machine(model=model, states=states,

                  transitions=transitions, initial='New')

#状态转变的完整过程

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)

运行截图