大约有 44,000 项符合查询结果(耗时:0.0557秒) [XML]
Like Operator in Entity Framework?
...cified expression, or zeros if the pattern is not found, on all valid text and character data types
Namespace: System.Data.Objects.SqlClient
Assembly: System.Data.Entity (in System.Data.Entity.dll)
A bit of an explanation also appears in this forum thread.
...
How to parse JSON in Scala using standard Scala classes?
...n in the rest of the for loop I use the fact that generators (using <-) and value definitions (using =) will make use of the unapply methods.
(Older answer edited away - check edit history if you're curious)
share
...
In Vim is there a way to delete without putting text in the register?
...
At first I thought this command was not working properly. Then I realized I was using a "dead keys" version of the american keyboard. With this keyboard layout I have to type "<space>_d. The space is needed to actually type the ".
...
Python argparse ignore unrecognised arguments
Optparse, the old version just ignores all unrecognised arguments and carries on. In most situations, this isn't ideal and was changed in argparse. But there are a few situations where you want to ignore any unrecognised arguments and parse the ones you've specified.
...
Django admin: how to sort by one of the custom list_display fields that has no database field
...ustom manager for Customer which includes the number of orders aggregated, and then setting admin_order_field to that aggregate, ie
from django.db import models
class CustomerManager(models.Manager):
def get_query_set(self):
return super(CustomerManager, self).get_query_set().annotat...
Run an OLS regression with Pandas Data Frame
I have a pandas data frame and I would like to able to predict the values of column A from the values in columns B and C. Here is a toy example:
...
How to disable Golang unused import error
...
If you add the underscore to "fmt" in Gogland, it automatically adds "fmt" so that you have both _"fmt" and "fmt", which renders it useless in this IDE
– kramer65
Sep 8 '17 at 8:54
...
Best way to serialize an NSData into a hexadeximal string
...alString];
This is "probably" better than calling [someData description] and then stripping the spaces, <'s, and >'s. Stripping characters just feels too "hacky". Plus you never know if Apple will change the formatting of NSData's -description in the future.
NOTE: I have had people reach ou...
How to Load an Assembly to AppDomain with all references recursively?
...
You need to invoke CreateInstanceAndUnwrap before your proxy object will execute in the foreign application domain.
class Program
{
static void Main(string[] args)
{
AppDomainSetup domaininfo = new AppDomainSetup();
domaininfo.Appli...
How to use pull to refresh in Swift?
I am building an RSS reader using swift and need to implement pull to reload functionality.
17 Answers
...
