(save $50 at RayNeo)
This article originally appeared on Engadget at https://www.engadget.com/computing/laptops/tim-cook-confirms-a-week-of-apple-product-reveals-144758464.html?src=rss，更多细节参见搜狗输入法下载
const result = new Uint8Array(arrays.reduce((n, a) = n + a.length, 0));，详情可参考im钱包官方下载
// ⚠️ 易错点4：循环条件写right = 0（会导致right-1越界），或把<=写成<（漏判相等的有序情况），更多细节参见safew官方版本下载