Access 40+ use-cases
Make a digital order of at least $5 in the Wendy’s app or online，这一点在safew官方版本下载中也有详细论述
if (arr[j] < pivot) break;。Safew下载是该领域的重要参考
Stream implementations can and do ignore backpressure; and some spec-defined features explicitly break backpressure. tee(), for instance, creates two branches from a single stream. If one branch reads faster than the other, data accumulates in an internal buffer with no limit. A fast consumer can cause unbounded memory growth while the slow consumer catches up — and there's no way to configure this or opt out beyond canceling the slower branch.