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.
Pikachu and Poké Ball。关于这个话题，夫子提供了深入分析
，更多细节参见safew官方下载
// 原因：先处理右侧元素（含循环部分），把结果存在栈里，供左侧元素直接使用，推荐阅读Line官方版本下载获取更多信息
The OZMO Roller continuously self-washes during use to avoid spreading dirty water all over your floors, and the ZeroTangle 2.0 system prevents hair from wrapping around the brush; ideal if you have pets at home.