大约有 40,700 项符合查询结果(耗时:0.0583秒) [XML]
Circle drawing with SVG's arc path
...sing SVG path, we can draw 99.99% of a circle and it shows up, but when it is 99.99999999% of a circle, then the circle won't show up. How can it be fixed?
...
Find the last element of an array while using a foreach loop in PHP
...
It sounds like you want something like this:
$numItems = count($arr);
$i = 0;
foreach($arr as $key=>$value) {
if(++$i === $numItems) {
echo "last index!";
}
}
That being said, you don't -have- to iterate over an "array" using foreach in php.
...
How to extract numbers from a string in Python?
I would extract all the numbers contained in a string. Which is the better suited for the purpose, regular expressions or the isdigit() method?
...
Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...
It depends. See the MySQL Performance Blog post on this subject: To SQL_CALC_FOUND_ROWS or not to SQL_CALC_FOUND_ROWS?
Just a quick summary: Peter says that it depends on your indexes and other factors. Many of the comments to the post seem to say that SQL_CALC_FOUND_ROWS is ...
How much of a git sha is *generally* considered necessary to uniquely identify a change in a given c
If you're going to build, say, a directory structure where a directory is named for a commit in a Git repository, and you want it to be short enough to make your eyes not bleed, but long enough that the chance of it colliding would be negligible, how much of the SHA substring is generally required?
...
Java HTTPS client certificate authentication
...
Finally managed to solve all the issues, so I'll answer my own question. These are the settings/files I've used to manage to get my particular problem(s) solved;
The client's keystore is a PKCS#12 format file containing
The client's public certificate (in...
What is the equivalent of MATLAB's repmat in NumPy
...ng MATLAB code using NumPy: repmat([1; 1], [1 1 1]) . How would I accomplish this?
7 Answers
...
Does a `+` in a URL scheme/host/path represent a space?
I am aware that a + in the query string of a URL represents a space. Is this also the case outside of the query string region? That is to say, does the following URL:
...
How do I copy a hash in Ruby?
...
The clone method is Ruby's standard, built-in way to do a shallow-copy:
irb(main):003:0> h0 = {"John" => "Adams", "Thomas" => "Jefferson"}
=> {"John"=>"Adams", "Thomas"=>"Jefferson"}
irb(main):004:0> h1 = h0.clone
=> ...
How to replace a hash key with another key
...
share
|
improve this answer
|
follow
|
answered Oct 10 '13 at 14:22
gayavatgayavat
...
