枚举
枚举	GMTCMapViewMarkerType { GMTCMapViewMarkerTypeUnknown、GMTCMapViewMarkerTypeVehicle、GMTCMapViewMarkerTypeTripPickupPoint、GMTCMapViewMarkerTypeTripDropoffPoint、 GMTCMapViewMarkerTypeIntermediateDestination }

枚举类型文档

枚举器 ：

GMTCMapViewMarkerTypeUnknown
GMTCMapViewMarkerTypeVehicle
GMTCMapViewMarkerTypeTripPickupPoint
GMTCMapViewMarkerTypeTripDropoffPoint
GMTCMapViewMarkerTypeIntermediateDestination