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hyq

hyq

V2EX member #24845, joined on 2012-08-04 16:45:33 +08:00
Today's activity rank 20745
hyq's recent replies
阳光普照,1500 京东卡
Oct 11, 2023
Replied to a topic by ratmond 宽带症候群 国内各大高校镜像站测速
RANK ABBR SPEED
00: NYIST 42.35 MiB/s
01: JCUT 41.69 MiB/s
02: BFSU 41.54 MiB/s
03: TUNA 40.81 MiB/s
04: CQU 39.67 MiB/s
05: NJU 38.50 MiB/s
06: SJTUG - Siyuan 38.12 MiB/s
07: ISRC-ISCAS 34.60 MiB/s
08: WSYU 31.61 MiB/s
09: JLU 27.63 MiB/s
10: PKU 26.81 MiB/s
11: SCAU 25.75 MiB/s
12: SDU 25.65 MiB/s
13: LZUOSS 25.15 MiB/s
14: XJTU 15.61 MiB/s
15: USTC 15.46 MiB/s
16: SUSTech CRA 15.18 MiB/s
17: HIT 14.31 MiB/s
18: CQUPT 13.89 MiB/s
19: QLUT 8.44 MiB/s
20: DNUI 4.24 MiB/s
21: ShanghaiTech GeekPie 3.64 MiB/s
22: NJTech 3.14 MiB/s
23: BJTU 1.57 MiB/s
24: BUPT 982.43 KiB/s
25: CERNET 0.00 B/s
26: NJUPT 0.00 B/s
27: YNUOSA 0.00 B/s
28: SJTUG - Zhiyuan 0.00 B/s
29: UESTC LUG 0.00 B/s

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上海联通
MxiwkXjPpMv 已经使用, 感谢
用 hash 会有冲突的概率,用 aes 的结果是 128bit ,用 uuid 的结果更长。在作为数据库索引的时候需要考虑这个问题。
我觉得楼主的工作是有意义的。在特定场景下,自己设计一个映射去隐藏总用户数,这个需求肯定是存在的。
比如星巴克的点单上,就不会有单号,让人猜不到星巴克一天能卖几杯。但是麦当劳,瑞幸都有可读的单号,一下就能看到一天的销量。这种信息可以说属于商业机密,在有竞争的情况下,不能让对手知道自己的底牌。
@hyq 主要是这部分钱可以不交税,如果当前税率比较高的人,相当于自己每年花税后 7000 块,退休后每年拿 4 万块
每年交 1w2 ,买了保险,交到 65 岁,以后退休每年 4 万,如果能活到 80 岁,应该算回本了
托管的最好,不然你得自己去研究内核,ipvs ,iptables ,coredns ,apiserver ,etcd ,弄好了没功劳,弄坏了得加班
一般 nas 都提供 usb 自动备份功能,比如群辉的,可以安装个 usb copy 的应用。qnap 的有个 usb 口旁边有 copy 按钮
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