以下是使用 PlantUML 编写的满足您需求的 UML 时序图示例: ```plantuml @startuml title Car System Interaction participant "Car" as Car participant "Engine" as Engine participant "EntertainmentSystem" as ES participant "NavigationSystem" as NS participant "Phone" as Phone Car -> Engine : StartEngine() Engine -> Car : EngineStarted Car -> ES : EnableEntertainmentSystem() ES -> Phone : RequestBluetoothConnection Phone -> ES : BluetoothConnected NS -> Car : ProvideRoutePlanning(RouteInfo) Car -> NS : ConfirmRouteReceived @enduml ``` 在上述时序图中: - `Car` 启动时向 `Engine` 发送 `StartEngine()` 消息来启动发动机,`Engine` 回复 `EngineStarted` 表示发动机已启动。 - `Car` 启用 `EntertainmentSystem` 后,`ES` 向 `Phone` 请求蓝牙连接,`Phone` 回复 `BluetoothConnected` 表示连接成功。 - `NS` 向 `Car` 提供路线规划信息 `ProvideRoutePlanning(RouteInfo)`,`Car` 确认接收 `ConfirmRouteReceived` 。 [2024-08-16 10:42:50 | AI写代码神器 | 263点数解答]