大约有 40,000 项符合查询结果（耗时：0.0525秒） [XML]
Simulator or Emulator? What is the difference?
...
By this definition, is it therefore impossible to simulate the real world in software? I don't think we can accurately represent the underlying state of the real world - only emulate observable properties... for now.
...
Best practice: AsyncTask during orientation change
...
I usually solve this by having my AsyncTasks fire broadcast Intents in the .onPostExecute() callback, so they don't modify the Activity that started them directly. The Activities listen to these broadcasts with dynamic BroadcastReceivers and act ...
Why is NaN not equal to NaN? [duplicate]
...it upon a NaN, you don't bubble out a seemingly sensible answer. Otherwise by identity NaN/NaN should equal 1, along with all the other consequences like (NaN/NaN)==1, (NaN*1)==NaN, etc. If you imagine that your calculations went wrong somewhere (rounding produced a zero denominator, yielding NaN), ...
Is there an easy way to check the .NET Framework version?
...v4.0.30319 - so you are no longer able to check the installed .NET version by looking into Microsoft.NET\Framework.
To check the .NET version, Microsoft has provided two different sample scripts depending on the .NET version that is being checked, but I don't like having two different C# scripts for...
How to style the option of an html “select” element?
...
No, it's not possible, as the styling for these elements is handled by the user's OS. MSDN will answer your question here:
Except for background-color and color, style settings applied through the style object for the option element are ignored.
...
NVIDIA vs AMD: GPGPU performance
...ngs about CUDA vs. OpenCL; presumably OpenCL is the long-term future, just by dint of being an open standard.
But current-day NVIDIA vs ATI cards for GPGPU (not graphics performance, but GPGPU), that I do have a strong opinion about. And to lead into that, I'll point out that on the current Top 500...
What exactly does the “u” do? “git push -u origin master” vs “git push origin master”
...answered Apr 18 '11 at 2:02
dahlbykdahlbyk
63.6k88 gold badges9494 silver badges119119 bronze badges
...
Regular expression that matches valid IPv6 addresses
...ose in their compressed form (with :: or leading zeros omitted from each byte pair).
30 Answers
...
Calling Objective-C method from C++ member function?
...ctive-C++.)
You can implement the above in an Object-Orientented manner by using the PIMPL idiom. The implementation is only slightly different. In short, you place the wrapper functions (declared in "MyObject-C-Interface.h") inside a class with a (private) void pointer to an instance of MyClas...
Why must we define both == and != in C#?
...
By the way, I can't believe nobody's referenced the FileNotFound joke..
– Brian Gordon
Aug 2 '11 at 19:26
...