系统在 2 月 23 日凌晨兑现候补订单后，按其选择的方式向 3 名乘车人发送了通知。由于候补车次（G1654）与已购车次（G1656）乘车时段并不重叠，系统不会判定为行程冲突，因此不存在「自动作废」。
self.writer.writerow({
，这一点在旺商聊官方下载中也有详细论述
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.
Discord says facial scans never leave the user's device and IDs are only used to check a person's age, then deleted.