大约有 40,000 项符合查询结果（耗时：0.0613秒） [XML]
What algorithm can be used for packing rectangles of different sizes into the smallest rectangle pos
Ive got a bunch of rectangular objects which I need to pack into the smallest space possible (the dimensions of this space should be powers of two).
...
.NET - Dictionary locking vs. ConcurrentDictionary
... a can from a pyramid-can while a clerk is currently building the pyramid, all hell would break loose. Or, what if two customers reaches for the same item at the same time, who wins? Will there be a fight? This is a non-threadsafe-collection. There's plenty of ways to avoid problems, but they all re...
How to loop through all enum values in C#? [duplicate]
...rough an extra iterator (.Cast<Foos>), and (2) you don't need to box all the values and unbox them again. Şafak's cast will remain valid as long as they don't change the array type returned to some other type (like object[]). But we can be completely sure they won't because (a) it would lose ...
How to remove all the null elements inside a generic list in one go?
Is there a default method defined in .Net for C# to remove all the elements within a list which are null ?
7 Answers
...
“Treat all warnings as errors except…” in Visual Studio
...rs" exists. It should be available in project settings without to edit manually the file. Thanks.
– AFract
Oct 23 '18 at 9:03
1
...
View all TODO items in Visual Studio using GhostDoc
I'm also using GhostDoc in Visual Studio 2008. How do I view all to-do items and if that's a function already in Visual Studio or in GhostDoc (the documentation tool that I use)?
...
Why is my variable unaltered after I modify it inside of a function? - Asynchronous code reference
Given the following examples, why is outerScopeVar undefined in all cases?
6 Answers
...
Prefer composition over inheritance?
...
Prefer composition over inheritance as it is more malleable / easy to modify later, but do not use a compose-always approach. With composition, it's easy to change behavior on the fly with Dependency Injection / Setters. Inheritance is more rigid as most languages do not allo...
Difference between SurfaceView and View?
...
Views are all drawn on the same GUI thread which is also used for all user interaction.
So if you need to update GUI rapidly or if the rendering takes too much time and affects user experience then use SurfaceView.
...
SQL update fields of one table from fields of another one
... The question is asking about how to do it without specifying all the column names. (And I am too.)
– cluesque
Jun 6 '12 at 16:29
2
...