大约有 33,000 项符合查询结果（耗时：0.0514秒） [XML]
ImportError: No module named MySQLdb
...ations
With Ubuntu Server LTS 16.1, a full LAMP stack, Apache2 MySql 5.7 PHP 7 Python 3 and Django 1.10.2 I really struggled to find a good answer to this. In fact, I am still not satisfied, but the ONLY solution that worked for me is this...
sudo apt-g
In JPA 2, using a CriteriaQuery, how to count results
...onfuse these concepts :-) JPA comes with very powerfull/ complex API that allows you to do multiple joins/ fetches/ aggregations/ aliases etc in a single query. You have to deal with it while counting.
– G. Demecki
Sep 14 '15 at 8:16
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Check if string begins with something? [duplicate]
... documentation websites actually tell you to avoid it if possible (I think php.net does, for example). I'd recommend the indexOf() or substr() solutions.
– Byson
Dec 22 '14 at 14:59
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ActiveMQ or RabbitMQ or ZeroMQ or [closed]
...velopes are quite big.
ZeroMq is a very lightweight messaging system specially designed for high throughput/low latency scenarios like the one you can find in the financial world. Zmq supports many advanced messaging scenarios but contrary to RabbitMQ, you’ll have to implement most of them yourse...
Regular Expression to find a string included between two characters while EXCLUDING the delimiters
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PHP:
$string ='This is the match [more or less]';
preg_match('#\[(.*)\]#', $string, $match);
var_dump($match[1]);
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Correct way to convert size in bytes to KB, MB, GB in JavaScript
...ly more appropriate than toPrecision(n) to have a consistant precision for all the values. And to avoid trailing zeros (ex: bytesToSize(1000) // return "1.00 KB") we could use parseFloat(x). I suggest to replace the last line by: return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i...
Testing Abstract Classes
...ted, you need means to UT the concrete methods of abstract classes.
Personally, I use PHPUnit, and it has so called stubs and mock objects to help you testing this kind of things.
Straight from PHPUnit manual:
abstract class AbstractClass
{
public function concreteMethod()
{
retur...
how do I strip white space when grabbing text with jQuery?
...in js:
var emailAdd = $(this).text().replace(/ /g,'');
That will remove all the spaces
If you want to remove the leading and trailing whitespace only, use the jQuery $.trim method :
var emailAdd = $.trim($(this).text());
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How to inherit from a class in javascript?
...t the bottom. I now prefer Object.create(). Object.create is available in all modern browsers.
I should note that Object.create is usually much slower than using new with a function constructor.
//The prototype is just an object when you use `Object.create()`
var Base = {};
//This is how you cre...
Does Python have “private” variables in classes?
...ass variables. In Java, nothing prevents you from doing the same if you really want to - after all, you can always edit the source of the class itself to achieve the same effect. Python drops that pretence of security and encourages programmers to be responsible. In practice, this works very nicely...