大约有 40,000 项符合查询结果（耗时：0.0826秒） [XML]
Why are C# interface methods not declared abstract or virtual?
...Interface { }
If Base and Derived are declared in the same assembly, the compiler will make Base::Method virtual and sealed (in the CIL), even though Base doesn't implement the interface.
If Base and Derived are in different assemblies, when compiling the Derived assembly, the compiler won't cha...
iOS 5 Best Practice (Release/retain?)
...will be unable to use them until the developers release an update which is compatible with ARC.
Edit: I recently discovered that you can turn off ARC on a per-file basis. See pixelfreak's answer. So, my advice still stands, but now the 3rd-party libraries shouldn't need to be updated to work wi...
What do I have to do to get Core Data to automatically migrate models?
...If you have already made the changes that have caused your project to be incompatible - take these changes out of the original xcdatamodel file. If you have yet to make the changes - then just edit the 2.xcdatamodel file (the one you just made current version).
Now when you install this version onto...
Heatmap in matplotlib with pcolor?
...ducing the FlowingData graphic in Python
# Source : http://flowingdata.com/2010/01/21/how-to-make-a-heatmap-a-quick-and-easy-solution/
#
# Other Links:
# http://stackoverflow.com/questions/14391959/heatmap-in-matplotlib-with-pcolor
#
# --------------------------------------------------------...
Visual Studio setup problem - 'A problem has been encountered while loading the setup components. Ca
...er-so-useful error 'A problem has been encountered while loading the setup components. Canceling setup.' whenever I try to uninstall, reinstall or repair Visual Studio 2008 (team system version). If I can't resolve this issue I have no choice but to completely wipe my computer and start again which ...
How to stop an app on Heroku?
...
To completely 'stop' your app you can scale the web dynos down to zero which effectively takes all your app http-processes offline.
$ heroku ps:scale web=0
Scaling web processes... done, now running 0
...
Git command to show which specific files are ignored by .gitignore
...(mentioned in qwertymk's answer), you can also use the git check-ignore -v command, at least on Unix (doesn't work in a CMD Windows session)
git check-ignore *
git check-ignore -v *
The second one displays the actual rule of the .gitignore which makes a file to be ignored in your git repo.
On Uni...
Does anyone have benchmarks (code & results) comparing performance of Android apps written in Xamari
...ross Xamarin claims that their Mono implementation on Android and their C# compiled apps are faster than Java code. Did anyone perform actual benchmarks on very similar Java and C# code on different Android platforms to verify such claims, could post the code and results?
...
ERROR 2006 (HY000): MySQL server has gone away
...
You should be able to put this on the command line, which will avoid temporarily editing a system file:<code>mysql --max_allowed_packet=1GM</code>
– Jan Steinman
Feb 13 '15 at 7:45
...
@AspectJ pointcut for all methods of a class with specific annotation
...
You should combine a type pointcut with a method pointcut.
These pointcuts will do the work to find all public methods inside a class marked with an @Monitor annotation:
@Pointcut("within(@org.rejeev.Monitor *)")
public void beanAnnot...