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淘宝网采用什么技术架构来实现网站高负载的 - 更多技术 - 清泛网 - 专注C/C...
...式来保存状态也会遇到限制，比如每个cookie一般不能超过4K的大小，同时很多浏览器都限制一个站点最多保存20个cookie.淘 宝cookie框 架采用的是“多值cookie”， 就是一个组合键对应多个cookie的 值，这样不仅可以防止cookie数 量超...
IE10 renders in IE7 mode. How to force Standards mode?
...irectly under the <head> tag or if there is too much data before it (4k). It may also trigger the document to be reparsed in some versions of IE which will slow down rendering. You can read more about these issues at the MSDN article Best Practice: Get your HEAD in order.
Adding the X-UA-Comp...
How is set() implemented?
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@THC4k All you proved is that looking up X is done in constant time, but it doesn't mean that time for looking up X+Y will take the same amount of time which is what O(1) is all about.
– Shay Erlichmen
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Does it make any sense to use inline keyword with templates?
...x2.cc:(.text+0x0): multiple definition of `int g<int>(int)'
/tmp/ccUa4K20.o:inlinexx.cc:(.text+0x0): first defined here
collect2: ld returned 1 exit status
Not stating inline when doing explicit instantiation may also lead to issues.
So in summary: For non fully specialized function templat...
String, StringBuffer, and StringBuilder
...
ArtefactoArtefacto
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source of historical stock data [closed]
...ship you a drive with terabytes of data. If I remember right its about $3k-4K per year of data. But trust me, once you understand how hard it is to get good intraday data, you won't think this is very much money at all.
Not to discourage you but to get good data is hard, so hard in fact that many h...
How do malloc() and free() work?
... virtual memory manager can handle (most often multiples of 512 bytes e.g. 4KB).
So returning 40 Bytes to the OS will just not work. So what does free do?
Free will put the memory block in its own free block list. Normally it also tries to meld together adjacent blocks in the address space. The fr...
Why is the .bss segment required?
...ny uninitialized buffers 4096 bytes in length. Would you want all of those 4k buffers to contribute to the size of the binary? That would be a lot of wasted space.
– Jeff Mercado
Mar 2 '12 at 15:02
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What is the difference between localStorage, sessionStorage, session and cookies?
...domain. This gives you considerably more space to work with than a typical 4KB cookie.
The data is not sent back to the server for every HTTP request (HTML, images, JavaScript, CSS, etc) - reducing the amount of traffic between client and server.
The data stored in localStorage persists until explic...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...the number of printed As:
If N > 10, the number of As will be: 4^{N+1-4K}·3^{5K-N-1}
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