Rxjava库，介绍Reacive技术的java实现 RxJavaisaspecificimplementationofreactiveprogrammingforJavaandAndroid thatisinfluencedbyfunctionalprogramming.Itfavorsfunctioncomposition,avoid‐ anceofglobalstateandsideeffects,andthinkinginstreamstocomposeasynchro‐ nousandevent-basedp