大约有 13,909 项符合查询结果（耗时：0.0261秒） [XML]
Python: finding an element in a list [duplicate]
What is a good way to find the index of an element in a list in Python?
Note that the list may not be sorted.
10 Answers
...
Where IN clause in LINQ [duplicate]
...
This expression should do what you want to achieve.
dataSource.StateList.Where(s => countryCodes.Contains(s.CountryCode))
share
|
...
Plot a legend outside of the plotting area in base graphics?
...
Maybe what you need is par(xpd=TRUE) to enable things to be drawn outside the plot region. So if you do the main plot with bty='L' you'll have some space on the right for a legend. Normally this would get clipped to the plot region, but do par(xpd=TRUE...
How do I run IDEA IntelliJ on Mac OS X with JDK 7?
I use Mac OS X 10.8.2, and use JDK 7. Now I downloaded the latest version of IDEA IntelliJ, 11. But it doesn't seem to start without JDK 6. Is there any workaround?
...
Enforcing the type of the indexed members of a Typescript object?
... Typescript object, and enforce that all of the keys map to strings. For example:
8 Answers
...
Powershell v3 Invoke-WebRequest HTTPS error
.../connect.microsoft.com/PowerShell/feedback/details/419466/new-webserviceproxy-needs-force-parameter-to-ignore-ssl-errors
Basically, in your PowerShell script:
add-type @"
using System.Net;
using System.Security.Cryptography.X509Certificates;
public class TrustAllCertsPolicy : ICertific...
How to convert a data frame column to numeric type?
...4 d 4
5 NA 5 5 e 5
Warning message:
In eval(expr, envir, enclos) : NAs introduced by coercion
but if you do same thing on fake_char and char_fac, you'll be lucky, and get away with no NA's:
> transform(d, fake_char = as.numeric(fake_char),
char_fac...
How to remove space between axis & area-plot in ggplot2?
...or further possibilities in the latest versions of ggplot2.
From ?scale_x_continuous about the expand-argument:
Vector of range expansion constants used to add some padding around
the data, to ensure that they are placed some distance away from the
axes. The defaults are to expand the sca...
How to do parallel programming in Python?
...ll spawn one process for each CPU core on your machine. Each CPU core can execute one process simultaneously.
If you want to map a list to a single function you would do this:
args = [A, B]
results = pool.map(solve1, args)
Don't use threads because the GIL locks any operations on python objects....
How can I convert comma separated string into a List
...
@LiquidPony in this implementation yes as the Select extension in this case returns IEnumerable<Int32> and it is not list. However list has a constructor accepting another collection as source.
– Oybek
Feb 15 '12 at 21:07
...