大约有 40,000 项符合查询结果（耗时：0.0587秒） [XML]
How to remove an element from a list by index
...org/projects/python/trunk/Objects/listobject.c how PyList_GetItem() essentially returns ((PyListObject *)op) -> ob_item[i]; - the ith element of an array.
– glglgl
Sep 9 '13 at 7:53
...
Conditional Variable vs Semaphore
...k object that they use to maintain mutual exclusion, but then they provide extra functionality on top of the lock for synchronizing thread execution. It's mostly up to you to figure out which one makes the most sense for your situation.
That's not necessarily the most technical description, but ...
Redis is single-threaded, then how does it do concurrent I/O?
...-threaded event loop. The interesting point is atomicity is provided at no extra cost (it does not require synchronization). It can be exploited by the user to implement optimistic locking and other patterns without paying for the synchronization overhead.
...
SQL Server - stop or break execution of a SQL script
...
perfect. does not require sysadmin ultra extra user rights
– Pac0
Nov 5 '18 at 10:40
...
How to decorate a class?
...2.5, is there a way to create a decorator that decorates a class? Specifically, I want to use a decorator to add a member to a class and change the constructor to take a value for that member.
...
How to suppress “unused parameter” warnings in C?
...
I usually write a macro like this:
#define UNUSED(x) (void)(x)
You can use this macro for all your unused parameters. (Note that this works on any compiler.)
For example:
void f(int x) {
UNUSED(x);
...
}
...
SQL Server Output Clause into a scalar variable
...ECT @someInt = ID FROM @ID". I wanted to know if its possible to skip that extra step (and intermediary table variable) if all I need is the resulting int.
– Benoittr
Apr 5 '11 at 21:33
...
How to compare 2 files fast using .NET?
... if (first.Length != second.Length)
return false;
if (string.Equals(first.FullName, second.FullName, StringComparison.OrdinalIgnoreCase))
return true;
int iterations = (int)Math.Ceiling((double)first.Length / BYTES_TO_READ);
using (FileStream fs1 = ...
T-SQL - function with default parameters
...a new extended version with a suffix (say CheckIfSFExistsEX here) with the extra parameters, and changing the original function to just calling the extended version with the "default" parameter. This way ALL existing code works, and you only have one place to maintain.
– Eske R...
Evenly space multiple views within a container view
...m constraints to its nearest 'spacer views'.
Note: Be sure you DON'T have extra top/bottom space constraints on your labels to superview; just the ones to the 'space views'. This will be satisfiable since the top and bottom constraints are on 'Space View 1' and 'Spacer View 4' respectively.
Duh 1:...