大约有 44,925 项符合查询结果（耗时：0.0440秒） [XML]
How does one write code that best utilizes the CPU cache to improve performance?
...
The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly to reduce the overall amount of data that needs to be transfered (preserving memory bandwidth).
Techniques for avoidi...
How to detect if app is being built for device or simulator in Swift
...r flag targeting iOS Simulators. For detailed instructions on how to do to it, see @mbelsky's answer.
Original answer
If you need a static check (e.g. not a runtime if/else) you can't detect the simulator directly, but you can detect iOS on a desktop architecture like follows
#if (arch(i386) || a...
Why is reading lines from stdin much slower in C++ than Python?
...sing Python and C++ and was shocked to see my C++ code run an order of magnitude slower than the equivalent Python code. Since my C++ is rusty and I'm not yet an expert Pythonista, please tell me if I'm doing something wrong or if I'm misunderstanding something.
...
What is the difference between Factory and Strategy patterns?
... For example, you may have a factory that creates your business objects. It may use different strategies based on the persistence medium. If your data is stored locally in XML it would use one strategy. If the data were remote in a different database, it would use another.
...
Disable browser's back button
... following code on your page code behind.
Page.Response.Cache.SetCacheability(HttpCacheability.NoCache)
share
|
improve this answer
|
follow
|
...
Sass or Compass without ruby?
Is there a way to use Sass or Compass or anything like that without Ruby?
7 Answers
7...
DateTime.Now vs. DateTime.UtcNow
...rties work. I know the second one is universal and basically doesn't deal with time zones, but can someone explain in detail how they work and which one should be used in what scenario?
...
What and where are the stack and heap?
...re created on the stack , and reference types are created on the heap , without explaining what these two things are. I haven't read a clear explanation of this. I understand what a stack is. But,
...
Does opacity:0 have exactly the same effect as visibility:hidden
If so, does it effectively deprecate the visibility property?
9 Answers
9
...
Web Service vs WCF Service
...cations that can communicate using a variety of communication mechanisms. With it, you can communicate using Peer to Peer, Named Pipes, Web Services and so on.
You can’t compare them because WCF is a framework for building interoperable applications. If you like, you can think of it as a SOA enab...