大约有 44,000 项符合查询结果（耗时：0.0664秒） [XML]
What .NET collection provides the fastest search
...ection" depends on your specific data size, ordered-ness, cost-of-hashing, and search frequency.
share
|
improve this answer
|
follow
|
...
Transposing a NumPy array
...
You can convert an existing vector into a matrix by wrapping it in an extra set of square brackets...
from numpy import *
v=array([5,4]) ## create a numpy vector
array([v]).T ## transpose a vector into a matrix
numpy also has a ma...
How to get .pem file from .key and .crt files?
...
Awesome! This is worked well for me! Just converted my .key and .crt files to .pem using your lines of code and then I uploaded (copy/paste) via AWS console. Thanks!
– Diego D
Jun 30 '16 at 10:52
...
Intersection and union of ArrayLists in Java
... Ooof, it might be a nice one-liner but it takes O(n^2) time. Convert one of the lists to a Set then use the set's contains method. Not everything in life has to be done with streams.
– dimo414
Oct 26 '16 at 6:22
...
How to post JSON to a server using C#?
...usResult);
// Create the post data
string postData = JsonConvert.SerializeObject(edit).ToString();
byte[] byteArray = Encoding.UTF8.GetBytes(postData);
postStream.Write(byteArray, 0, byteArray.Length);
postStream.Close();
//Start the web request
...
The opposite of Intersect()
...rray2.Except(array1);
If you want the real non-intersection (also both 1 and 4), then this should do the trick:
var nonintersect = array1.Except(array2).Union( array2.Except(array1));
This will not be the most performant solution, but for small lists it should work just fine.
...
In-App Billing test: android.test.purchased already owned
I am currently testing In-App Billing for a future app, and after I successfully "bought" the test item "android.test.purchased" the first time, I now receive the response code 7 every time I try to buy it again, which means that I already own this item.
...
What is the best way to do GUIs in Clojure?
...
If you want to do GUI programming I'd point to Temperature Converter or the ants colony.
Many things in Swing are done by sub-classing, particularly if you are creating custom components. For that there are two essential functions/macros: proxy and gen-class.
Now I understand where...
Change C++/CLI project to another framework than 4.0 with vs2010
...ork is displayed in the property page.*
That's not terribly accurate on converted projects, you'll have to add the <TargetFrameworkVersion> element yourself. Put it in the PropertyGroup labeled "Globals":
<PropertyGroup Label="Globals">
<TargetFrameworkVersion>v3.5</T...
How to serialize Joda DateTime with Jackson JSON processor?
...dd that I get the compile error "incompatible types: JodaModule cannot be converted to Module" - the method expects a org.codehaus.jackson.map.Module but JodaModule does not have this in its heirarchy so how could this work?
– Martin Charlesworth
Nov 20 '13 at...