Just Just 创建一个发射指定值的Observable Just将单个数据转换为发射那个数据的Observable。 Just类似于From,但是From会将数组或Iterable的数据取出然后逐个发射,而Just只是简单的原样发射,将数组或Iterable当做单个数据。 注意:如果你传递null 给Just,它会返回一个发射null...
Hot and Cold Observables Hot and Cold Observables IMHO, I would suggest to more think of this as property of sequences and not separate types because they are represented by th...