据微信派昨日消息，在最新版微信里：
No custom ReadableStream class with hidden internal state. A readable stream is just an AsyncIterable. You consume it with for await...of. No readers to acquire, no locks to manage.
。业内人士推荐Line官方版本下载作为进阶阅读
Browser benchmarks (Chrome/Blink, averaged over 3 runs) show consistent gains as well:，详情可参考Line官方版本下载
Maternity services under strain as report finds insufficient staffing levels
* @param arr 待排序数组