其中，2 月 23 日发送旅客 1873.3 万人次，创春运单日旅客发送量历史新高。
That said, it's important to recognize that locking in itself is not bad. It does, in fact, serve an important purpose to ensure that applications properly and orderly consume or produce data. The key challenge is with the original manual implementation of it using APIs like getReader() and releaseLock(). With the arrival of automatic lock and reader management with async iterables, dealing with locks from the users point of view became a lot easier.
，这一点在safew官方版本下载中也有详细论述
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