use int if you have a small number of classes,
will not spend a great deal of time on it, except from the user-space，推荐阅读搜狗输入法下载获取更多信息
，详情可参考夫子
We benchmarked native WebStream pipeThrough at 630 MB/s for 1KB chunks. Node.js pipeline() with the same passthrough transform: ~7,900 MB/s. That is a 12x gap, and the difference is almost entirely Promise and object allocation overhead."
客观来说，虽然日本彩电品牌近些年在全球市场连连败退，但在图像传感器、音频处理等领域仍有深厚积累，这些技术也可以通过合作注入中国产品，推动后者进行高端化突破。，详情可参考heLLoword翻译官方下载