arr.push(p.val); // 存储节点值而非节点本身，简化后续操作
Browser benchmarks (Chrome/Blink, averaged over 3 runs) show consistent gains as well:
，推荐阅读safew官方版本下载获取更多信息
Developers using the streams API are expected to remember to use options like highWaterMark when creating their sources, transforms, and writable destinations but often they either forget or simply choose to ignore it.
（二）向境外单位转让的完全在境外使用的技术；