大约有 16,000 项符合查询结果(耗时:0.0287秒) [XML]
PHP function overloading
...ion myFunc() {
for ($i = 0; $i < func_num_args(); $i++) {
printf("Argument %d: %s\n", $i, func_get_arg($i));
}
}
/*
Argument 0: a
Argument 1: 2
Argument 2: 3.5
*/
myFunc('a', 2, 3.5);
share
|
...
Selecting multiple columns in a pandas dataframe
...n interface to NumPy's usual __getitem__ syntax. That said, you can easily convert a column-slicing problem into a row-slicing problem by just applying a transpose operation, df.T. Your example uses columns[1:3], which is a little misleading. The result of columns is a Series; be careful not to just...
How to save all the variables in the current python session?
...__, my_shelf, and imported modules can not be shelved.
#
print('ERROR shelving: {0}'.format(key))
my_shelf.close()
To restore:
my_shelf = shelve.open(filename)
for key in my_shelf:
globals()[key]=my_shelf[key]
my_shelf.close()
print(T)
# Hiya
print(val)
# [1, 2, 3]
...
Java 8 NullPointerException in Collectors.toMap
The Java 8 Collectors.toMap throws a NullPointerException if one of the values is 'null'. I don't understand this behaviour, maps can contain null pointers as value without any problems. Is there a good reason why values cannot be null for Collectors.toMap ?
...
How do I remove the old history from a git repository?
...
@Jez you can convert your shallow repo into normal one by running git filter-branch -- --all. This will change all hashes in it but after that you will be able to push it to a new repo
– Ed'ka
Jan 26...
SOAP server and client application VCL+indy demo for Delphi XE?
... from the WebServices folder, now updated for Delphi XE and XE2, including converting the old WAD servers into new INDY VCL servers. You'd think that was impressive, except it's not. It's really easy. Just use the wizard to create a new project, and then add the web service interface and implementa...
What's the result of += in C and C++?
...of an expression behaves unpredictably in all compilers due to the lack of intervening sequence point. If it were unspecified, it would behave predictably but differently on different compilers.
– Justin ᚅᚔᚈᚄᚒᚔ
May 18 '12 at 15:50
...
Run PHP Task Asynchronously
...s first decoded to an array(module,controller,action,parameters), and then converted to JSON for injection to the queue itself.
A long running cli script then picked up the job from the queue, ran it (via Zend_Router_Simple), and if required, put information into memcached for the website PHP to pi...
Type definition in object literal in TypeScript
...
not working. Error:(33, 15) TS2352:Type 'null' cannot be converted to type 'string'.
– slideshowp2
Jun 27 '17 at 6:53
2
...
How to select only the records with the highest date in LINQ
...t support this. If query performance is out of your consideration, you can convert table ToList before you do the query.
– Will Wu
Mar 8 '13 at 9:44
8
...