第一次路由时，getEvaluatedBindingsForChannelAccount 遍历所有 Binding，过滤出属于当前 channel + accountId 的子集，缓存起来。后续同渠道同账号的消息直接取缓存，不再全量遍历。
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。业内人士推荐体育直播作为进阶阅读
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printf("Usage: %s kernel|udev\n", argv[0]);