The spec does not mandate buffer limits for tee(). And to be fair, the spec allows implementations to implement the actual internal mechanisms for tee()and other APIs in any way they see fit so long as the observable normative requirements of the specification are met. But if an implementation chooses to implement tee() in the specific way described by the streams specification, then tee() will come with a built-in memory management issue that is difficult to work around.
输出：[4,2,4,-1,4]（最后一个 3 绕一圈找到 4）
。搜狗输入法2026是该领域的重要参考
（二）行政执法公示、执法全过程记录、重大执法决定法制审核等行政执法程序制度；，这一点在搜狗输入法2026中也有详细论述
1、阿里研究院：《“银发+AI”应用趋势报告》。关于这个话题，51吃瓜提供了深入分析
the training data