from transitions import Machine
# 定义一个自己的类
class Matter(object):
    pass
model = Matter()
# 状态定义
states=['New', 'Ready', 'Running', 'Waiting','Terminated']
# 定义状态转移
# The trigger argument defines the name of the new triggering method
transitions = [
    {'trigger': 'Admitted', 'source': 'New', 'dest': 'Ready' },
    {'trigger': 'Dispatch', 'source': 'Ready', 'dest': 'Running'},
    {'trigger': 'Interrupt', 'source': 'Running', 'dest': 'Ready'},
    {'trigger': 'InputOutput', 'source': 'Running', 'dest': 'Waiting'},
    {'trigger': 'event_wait', 'source': 'Running', 'dest': 'Waiting'},
    {'trigger': 'InputOutput', 'source': 'Waiting','dest':'Ready'},
    {'trigger': 'event_completion', 'source': 'Waiting','dest':'Ready'},
    {'trigger': 'Exit','source':'Running','dest':'Terminated'}]
# 初始化
machine = Machine(model=model, states=states, transitions=transitions, initial='New')
# Test
print(model.state)# New
# 状体转变
model.Admitted()
print(model.state)# Ready
model.Dispatch()
print(model.state)# Running
model.event_wait()
print(model.state)# Waiting
model.InputOutput()
print(model.state)# Ready
model.Dispatch()
print(model.state)# Running
model.InputOutput()
print(model.state)# Waiting
model.event_completion()
print(model.state)# Ready
model.Dispatch()
print(model.state)# Running
model.Interrupt()
print(model.state)# Ready
model.Dispatch()
print(model.state)# Running
model.Exit()
print(model.state)# Terminated