RxJava：阻塞单个与阻塞优先

Question

我永远无法理解RxJava中blockingSingle上blockingFirst和Observables之间的区别。任何帮助将不胜感激。

Answer 1

对https://github.com/ReactiveX/RxJava/wiki/Blocking-Observable-Operators的

定义

IQueryable

发出first() — block until the Observable emits an item, then return the first item emitted by the Observable single( ) — if the Observable completes after emitting a single item, return that item, otherwise throw an exception 之类的声音会在发射任何物品时立即返回，并且first()等待Observable完成返回。