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CDN（内容分发网络）技术原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...问大部分的内容，这也是一种加速所有网站CDN的应用。
4．CDN 的工作原理
在描述CDN的实现原理，让我们先看传统的未加缓存服务的访问过程，以便了解CDN缓存访问方式与未加缓存访问方式的差别：
由上图可见，用户访问未...
Best way to read a large file into a byte array in C#?
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42
this method is limited to 2^32 byte files (4.2 GB)
– Mahmoud Farahat
Oct 4 '12 at 8:51
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For loop for HTMLCollection elements
...fox, Chrome, and Edge as of April 2016): https://jsfiddle.net/jfriend00/8ar4xn2s/
Update for ES6 in 2016
You can now use the ES6 for/of construct with a NodeList and an HTMLCollection by just adding this to your code:
NodeList.prototype[Symbol.iterator] = Array.prototype[Symbol.iterator];
HTMLC...
How do I get the directory that a program is running from?
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184
Here's code to get the full path to the executing app:
Windows:
int bytes = GetModuleFileName(...
PHP + MySQL transactions examples
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Your Common Sense
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answered Apr 25 '10 at 12:49
Pascal MARTI...
Why is there no String.Empty in Java?
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Noel MNoel M
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Extracting numbers from vectors of strings
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ArunArun
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How to access random item in list?
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410
Create an instance of Random class somewhere. Note that it's pretty important not to create a...
How to extract year and month from date in PostgreSQL without using to_char() function?
...rt(text, timestamp)
e.g.
date_part('month', timestamp '2001-02-16 20:38:40'),
date_part('year', timestamp '2001-02-16 20:38:40')
http://www.postgresql.org/docs/8.0/interactive/functions-datetime.html
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Use of *args and **kwargs [duplicate]
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Dave WebbDave Webb
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