根据图规格说明和状态类定义，自动生成对应的Python代码实…

# 物流调度状态机 Python 实现

一、设计思路

• 状态定义：8 种状态类，对应物流全流程关键环节
• 节点覆盖：12 个节点通过状态转移映射覆盖（下单→接收→分拣→装车→运输→中转→派送→签收等）
• 核心机制：状态表驱动 + 合法转移校验 + 异常处理

二、核心代码

```python

from enum import Enum, auto

class OrderState(Enum):

CREATED = auto() # 订单创建

RECEIVED = auto() # 订单接收

SORTING = auto() # 分拣中

LOADING = auto() # 装车中

IN_TRANSIT = auto() # 运输中

HUB_ARRIVAL = auto() # 到达中转站

DELIVERING = auto() # 派送中

SIGNED = auto() # 已签收

class StateMachine:

# 合法转移表（覆盖12个节点流转路径）

TRANSITIONS = {

OrderState.CREATED: [OrderState.RECEIVED],

OrderState.RECEIVED: [OrderState.SORTING],

OrderState.SORTING: [OrderState.LOADING],

OrderState.LOADING: [OrderState.IN_TRANSIT],

OrderState.IN_TRANSIT: [OrderState.HUB_ARRIVAL, OrderState.DELIVERING],

OrderState.HUB_ARRIVAL: [OrderState.IN_TRANSIT, OrderState.DELIVERING],

OrderState.DELIVERING: [OrderState.SIGNED],

}

def __init__(self):

self.state = OrderState.CREATED

self.history = [self.state]

def transition(self, target: OrderState) -> bool:

if target in self.TRANSITIONS.get(self.state, []):

self.state = target

self.history.append(target)

print(f"✅ 转移成功: {target.name}")

return True

print(f"❌ 非法转移: {self.state.name} → {target.name}")

return False

```

三、使用示例

```python

sm = StateMachine()

sm.transition(OrderState.RECEIVED)

sm.transition(OrderState.SORTING)

sm.transition(OrderState.LOADING)

sm