isSubStep property Null safety
read / write
steps中是方案还是子路段
ture:steps是BMFMassTransitStep的子路段(A到B需要经过多个steps); false:steps是多个方案(A到B有多个方案选择)
Implementation
bool? isSubStep;
steps中是方案还是子路段
ture:steps是BMFMassTransitStep的子路段(A到B需要经过多个steps); false:steps是多个方案(A到B有多个方案选择)
bool? isSubStep;