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从估值5千万到一无所有 90后的他感觉梦境一场 - 资讯 - 清泛网 - 专注C/C++...
...O2O现在还没到风口。宠物行业的根本不在这里，这是源头问题。”与此同时，他对爱狗团的方向也进行了调整。夏军原本做的是宠物O2O，类似于美团的团购模式，将买家导入到线下的商户。而他放弃了O2O做法，现在做的模式不像...
How would you access Object properties from within an object method? [closed]
...uent objects;Pen.dispenseInkOnto(Surface) makes more sense to me than Pen.getColor().
Getters and setters also encourage users of the class to ask the object for some data, perform a calculation, and then set some other value in the object, better known as procedural programming. You'd be better se...
Lua简明教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...浮点数会慢（除非大于100,000,000,000,000），或是会有精度问题。
你可以以如下的方式表示数字，0x开头的16进制和C是很像的。
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num = 1024
num = 3.0
num = 3.1416
num = 314.16e-2
num = 0.31416E1
num = ...
.htaccess rewrite to redirect root URL to subdirectory
...infinite redirect, since /subfolder is redirected to /subfolder/subfolder, etc... the RewriteCond %{REQUEST_URI} !^/subfolder makes sure that if a URL is already redirected, it's not done again
– patrick
Aug 23 '18 at 19:04
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搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...可用mongodb集群（三）—— 深入副本集》搭建后还有两个问题没有解决：从节点每个上面的数据都是对数据库全量拷贝， 按照上一节中《搭建高可用mongodb集群（三）—— 深入副本集》搭建后还有两个问题没有解决：
从节点...
Using semicolon (;) vs plus (+) with exec in find
...ecute multiple commands (separately for each argument),
Example:
$ find /etc/rc* -exec echo Arg: {} ';'
Arg: /etc/rc.common
Arg: /etc/rc.common~previous
Arg: /etc/rc.local
Arg: /etc/rc.netboot
All following arguments to find are taken to be arguments to the command.
The string {} is repl...
What is the best way to prevent session hijacking?
...to notify the user of why they're being challenged
// for login again, etc.
}
What this does is capture 'contextual' information about the user's session, pieces of information which should not change during the life of a single session. A user isn't going to be at a computer in the US and in ...
Facebook share button and custom text [closed]
...ttp://www.facebook.com/sharer/sharer.php?u=YOUR_URL">Facebook</a> etc.
– Mateng
Sep 6 '12 at 9:39
Perfect, th...
How to use CURL via a proxy?
...ive a directory containing a set of valid root certification authorities (/etc/ssl/certs on Debian/Ubuntu, for example)
– Ale
Sep 29 '18 at 17:16
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如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...当于又打开了一扇新的大门，可以从更宽广的角度来看待问题。
从心理学的角度来说，我们对于外部世界的认识可分为三个区域：舒适区，学习区，和恐慌区。我们所熟悉的技术领域就是舒适区，而新技术是处于学习区或恐慌...