A few things stand out:
Наука и техника
，这一点在体育直播中也有详细论述
Starring: Kurt Russell, Wyatt Russell, Anna Sawai, Kiersey Clemons, Ren Watabe, Mari Yamamoto, Joe Tippett, Anders Holm, Takehiro Hira, Amber Midthunder, Curtiss Cook, Cliff Curtis, Dominique Tipper, and Camilo Jiménez Varón
Condition is designed to check the current value when a consumer wakes up. That's fine when state only moves forward, but it falls apart when transitions are fast. When the setter changes state, it calls notify_all(), which schedules wakeups for every waiting consumer. But in a single-threaded event loop, no consumer actually runs until the current coroutine yields. If the value changes again before that happens, consumers wake up and re-evaluate their predicate against the current value, not the value that triggered the notification. The predicate fails and the consumer goes back to sleep, potentially forever.