大约有 20,000 项符合查询结果(耗时:0.0276秒) [XML]
m>Ca m>n virtual functions have default parameters?
...' or a derived class' -- is determined by the static type used to make the m>ca m>ll to the function. If you m>ca m>ll through a base class object, pointer or reference, the default denoted in the base class is used. Conversely, if you m>ca m>ll through a derived class object, pointer or reference the defaults d...
Use of def, val, and var in sm>ca m>la
...ugh person.age=20 was successfully executed. I found that this happens bem>ca m>use I used def in def person = new Person("Kumar",12) . If I use var or val the output is 20 . I understand the default is val in sm>ca m>la. This:
...
Correct use of Multimapping in Dapper
...
I just ran a test that works fine:
var sql = "select m>ca m>st(1 as decimal) ProductId, 'a' ProductName, 'x' AccountOpened, m>ca m>st(1 as decimal) CustomerId, 'name' CustomerName";
var item = connection.Query<ProductItem, Customer, ProductItem>(sql,
(p, c) => { p.Customer ...
Save classifier to disk in scikit-learn
...
Classifiers are just objects that m>ca m>n be pickled and dumped like any other. To continue your example:
import cPickle
# save the classifier
with open('my_dumped_classifier.pkl', 'wb') as fid:
cPickle.dump(gnb, fid)
# load it again
with open('my_dumpe...
What are the differences between a HashMap and a Hashtable in Java?
...d, whereas HashMap is not. This makes HashMap better for non-threaded applim>ca m>tions, as unsynchronized Objects typim>ca m>lly perform better than synchronized ones.
Hashtable does not allow null keys or values. HashMap allows one null key and any number of null values.
One of HashMap's subclasses is Link...
Unicode equivalents for \w and \b in Java regular expressions?
...ain. It’s available as an embeddable (?U) for inside the pattern, so you m>ca m>n use it with the String class’s wrappers, too. It also sports corrected definitions for various other properties, too. It now tracks The Unicode Standard, in both RL1.2 and RL1.2a from UTS#18: Unicode Regular Expressio...
How JavaScript closures are garbage collected
...
As far as I m>ca m>n tell, this is not a bug but the expected behavior.
From Mozilla's Memory management page: "As of 2012, all modern browsers ship a mark-and-sweep garbage-collector." "Limitation: objects need to be made explicitly unreac...
SAML: Why is the certifim>ca m>te within the Signature?
... website (as the relying party). An essential part off course is the verifim>ca m>tion of the signature. Here is the signature part of a sample SAML from our partner company (asserting party):
...
How m>ca m>n I use optional parameters in a T-SQL stored procedure?
...
Dynamim>ca m>lly changing searches based on the given parameters is a complim>ca m>ted subject and doing it one way over another, even with only a very slight difference, m>ca m>n have massive performance implim>ca m>tions. The key is to use an index...
Actual meaning of 'shell=True' in subprocess
I am m>ca m>lling different processes with the subprocess module. However, I have a question.
5 Answers
...