大约有 41,000 项符合查询结果（耗时：0.0585秒） [XML]
Load view from an external xib file in storyboard
...you want to use it in your storyboard, add a UIView as you normally would, select the newly added view, go to the Identity Inspector (the third icon on the upper right that looks like a rectangle with lines in it), and enter your subclass's name in as the "Class" under "Custom Class".
...
What are good examples of genetic algorithms/genetic programming solutions? [closed]
...by just mixing bits from two parents), with the likelihood of a gene being selected as a parent being proportional to the profit it produced. I also added the possibility of point mutations to spice things up a bit. After a few hundred generations of this, I ended up with a population of genes tha...
REST vs JSON-RPC? [closed]
...hine whose API is CREATE CUP, than another that would contain INSERT COIN, SELECT COFFEE, SELECT SUGAR, and START. In the second API, because it depends on the machine state, you have to be very careful with the sequence of procedure calls.
– Aurélien
May 2 '1...
Understanding the Event Loop
... of queues of stuff that needs doing and every "tick" of the event loop it selects one, removes it from the queue, and runs it.
A key thing to understand is that node relies on the OS for most of the heavy lifting. So incoming network requests are actually tracked by the OS itself and when node is ...
How do cache lines work?
...(DDR1/2/3/4 SDRAM burst transfer size is configurable up to 64B; CPUs will select the burst transfer size to match their cache line size, but 64B is common)
As a rule of thumb, if the processor can't forecast a memory access (and prefetch it), the retrieval process can take ~90 nanoseconds, or ~250...
How to switch databases in psql?
...
You can select the database when connecting with psql. This is handy when using it from a script:
sudo -u postgres psql -c "CREATE SCHEMA test AUTHORIZATION test;" test
...
How to write a comment in a Razor view?
...al Studio will markup a comment in the context of the current language, by selecting the text you wish to turn into a comment, and then using the Ctrl+K Ctrl+C shortcut, or if you are using Resharper / Intelli-J style shortcuts, then Ctrl+/.
Server side Comments:
Razor .cshtml
Like so:
@* Co...
Difference between Repository and Service Layer?
...Model GetByClient(int id)
{
return _clientRepository.Get(id).Select(c =>
new OrdersByClientViewModel
{
Cient = new ClientViewModel { ...init with values from c...}
Orders = c.Orders.Select(o => new OrderViewModel { ......
How to elegantly deal with timezones
... }
...
}
4 - Here we can get the list of timezone to show to user to select from a dropdownbox:
public class ListHelper
{
public IEnumerable<SelectListItem> GetTimeZoneList()
{
var list = from tz in TimeZoneInfo.GetSystemTimeZones()
select new SelectLi...
Set the location in iPhone Simulator
...27.565370"> <name>MyOffice</name> </wpt> </gpx>
Select in Xcode at the Simulate area Add GPX File to Project...
Add created file from menu to project.
Now you can see your location in Simulate area:
...