下面observeOn()在subscribeOn()之前是不会有输出的,但是顺序换一下有输出,这是什么原因?
[code=java][Subscriber<String> observer1=new Subscriber<String>() {
            @Override
            public void onCompleted() {
                System.out.println("onComplete");
            }            @Override
            public void onError(Throwable e) {
                System.out.println("error");
            }            @Override
            public void onNext(String s) {
                System.out.println("onNext");
            }
        };
        Observable.create(new Observable.OnSubscribe<String>() {
            @Override
            public void call(Subscriber<? super String> subscriber) {
                System.out.println("call:" + Thread.currentThread().getName());
                subscriber.onNext("");
                subscriber.onCompleted();
            }
        }).observeOn(Schedulers.newThread()).subscribeOn(Schedulers.newThread()).subscribe(observer1);/code]