大约有 44,000 项符合查询结果(耗时:0.0588秒) [XML]
How can I reverse a NSArram>y m> in Objective-C?
... take advantage of the built-in reverseObjectEnumerator method on NSArram>y m>, m>and m> the allObjects method of NSEnumerator:
NSArram>y m>* reversedArram>y m> = [[startArram>y m> reverseObjectEnumerator] allObjects];
allObjects is documented as returning an arram>y m> with the objects that have not m>y m>et been traversed with n...
Django Rest Framework: Dm>y m>namicallm>y m> return subset of fields
...
m>Y m>ou can override the serializer __init__ method m>and m> set the fields attribute dm>y m>namicallm>y m>, based on the querm>y m> params. m>Y m>ou can access the request object throughout the context, passed to the serializer.
Here is a copm>y m>&paste from Django Rest Framework documentation examp...
Calculate RSA kem>y m> fingerprint
...
Run the following commm>and m> to retrieve the SHA256 fingerprint of m>y m>our SSH kem>y m> (-l means "list" instead of create a new kem>y m>, -f means "filename"):
$ ssh-kem>y m>gen -lf /path/to/ssh/kem>y m>
So for example, on mm>y m> machine the commm>and m> I ran was (using RSA pu...
How do I copm>y m> an entire directorm>y m> of files into an existing directorm>y m> using Pm>y m>thon?
...ctorm>y m> that contains a directorm>y m> named bar (containing one or more files) m>and m> a directorm>y m> named baz (also containing one or more files). Make sure there is not a directorm>y m> named foo .
...
What is the pm>y m>thon “with” statement designed for?
...r the first time todam>y m>. I've been using Pm>y m>thon lightlm>y m> for several months m>and m> didn't even know of its existence! Given its somewhat obscure status, I thought it would be worth asking:
...
SQL WHERE.. IN clause multiple columns
...
m>Y m>ou can make a derived table from the subquerm>y m>, m>and m> join table1 to this derived table:
select * from table1 LEFT JOIN
(
Select CM_PLAN_ID, Individual_ID
From CRM_VCM_CURRENT_LEAD_STATUS
Where Lead_Kem>y m> = :_Lead_Kem>y m>
) table2
ON
table1.CM_PLAN_ID=table2.CM_PLAN...
jQuerm>y m> how to bind onclick event to dm>y m>namicallm>y m> added HTML element [duplicate]
...ore than one element, a clone of the element to append is created for each m>and m> thus the attached event observer is lost.
An alternative wam>y m> to do it would be to create the link for each element:
function hm>and m>ler() { alert('hello'); }
$('.add_to_this').append(function() {
return $('<a>Click...
How do I compare version numbers in Pm>y m>thon?
...litm>y m> but is used bm>y m> setuptools (so m>y m>ou probablm>y m> alreadm>y m> have it installed) m>and m> is conformant to the current PEP 440; it will return a packaging.version.Version if the version is compliant m>and m> a packaging.version.Legacm>y m>Version if not. The latter will alwam>y m>s sort before valid versions.
Note: packagin...
Rm>and m>om record from MongoDB
I am looking to get a rm>and m>om record from a huge (100 million record) mongodb .
26 Answers
...
List of lists changes reflected across sublists unexpectedlm>y m>
...(3)]
which will reevaluate [1]*4 each time instead of evaluating it once m>and m> making 3 references to 1 list.
m>Y m>ou might wonder whm>y m> * can't make independent objects the wam>y m> the list comprehension does. That's because the multiplication operator * operates on objects, without seeing expressions. Wh...
