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程序员之网络安全系列（二）：如何安全保存用户密码及哈希算法 - 更多技术 ...
...100%保证安全，假如有人泄露了你的Salt呢？实际上通过反编译程序很容易可以拿到这个，由于WEB程序一般放在WEB服务器上，那么就需要保证服务器不被攻击，当然这个是运维人员去操心。
为了让加盐更安全，一般情况下我们可...
What is the recommended approach towards multi-tenant databases in MongoDB?
...013/10/how-to-setup-saas-cloud-multi-tenant.html
– KMån
Sep 25 '15 at 15:59
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30岁之后，程序员该向什么方向发展？ - 杂谈 - 清泛网 - 专注C/C++及内核技术
...理上有兴趣，又有这样的机会，就放心大胆去做，大不了失败了回头再做coding；如果你想做技术大牛，没问题，相信自己一定能做得到。最怕自己不知道自己要做什么，没有职业规则，对自己的前途一片迷茫。
QA&4. 开源是否可...
detach all packages while working in R
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nothing
It may be worth to add solution made available by Romain François. When loaded the package nothing, which is currently available on GitHub, will unload all of the loaded packages; as in the example that Romain provides:
loadedNamespaces()
[1] "base" "datasets" "grDevices" "grap...
How to pretty print XML from Java?
...ted Jul 4 '16 at 17:25
Jean-François Savard
19.1k55 gold badges4040 silver badges6666 bronze badges
answered Sep 26 '08 at 12:26
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How do I measure execution time of a command on the Windows command line?
...: command took 0:0:59.99 (59.99s total)
– Jean-François Larvoire
Dec 2 '14 at 16:04
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UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...ed Dec 7 '14 at 19:37
João Colaço
70088 silver badges2727 bronze badges
answered Oct 9 '13 at 15:20
Mohamed ...
Merge Images Side by Side(Horizontally)
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@RodrigoGraça See Usage & Examples guide about handling transparency + backgrounds.
– emcconville
Aug 5 '16 at 17:22
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Difference between open and codecs.open in Python
...gns) and even diaeresis (¨). Don't be naïve! (And let's not forget the Façade design pattern!)
Because pure ASCII is not a real option, open() without an explicit encoding is only useful to read binary files.
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苹果全球开发者大会：无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...采用了苹果自家的编程语言。新的Swift 2语言发布，除了编译性能的提升，各种新功能也将有效提升开发者效率。
在今年晚些时候，Swift会开放源代码，并对iOS、OS X和Linux平台都适用。这对于开发者来说无疑是一个令人惊喜的...