for (let i = left; i <= right; i++) {
Stack allocation of append-allocated escaping slices
，更多细节参见im钱包官方下载
结合一位资深职业加盟商的总结，这种困境的出现，主要源于三个致命陷阱，也是很多门店最终闭店的关键原因：
In 2011, hackers successfully cracked the main Linux development site, kernel.org. Afterward, to make sure this didn't happen again, the kernel's PGP web of trust was explicitly "bootstrapped" at a face-to-face key‑signing session during the 2011 Kernel Summit.