大约有 15,467 项符合查询结果（耗时：0.0532秒） [XML]
Get program execution time in the shell
...assful of students' programs:
fmt="run { date = '$(date)', user = '$who', test = '$test', host = '$(hostname)', times = { user = %U, system = %S, elapsed = %e } }"
/usr/bin/time -f "$fmt" -o $timefile command args...
I later concatenated all the $timefile files and pipe the output into a Lua inte...
Compare floats in php
...
There are still some edge cases which this test fails. Such as a=b=0 and if a is the smallest possible none zero positive value and b is the smallest possible non zero negative value, the test will incorrectly fail. Some good information here: floating-point-gui.de/er...
Can I replace groups in Java regex?
...lt);
}
}
m.appendTail(sb);
return sb.toString();
}
@Test
public void test1() {
String input = "{\"_csrf\":[\"9d90c85f-ac73-4b15-ad08-ebaa3fa4a005\"],\"originPassword\":[\"123\"],\"newPassword\":[\"456\"],\"confirmPassword\":[\"456\"]}";
String expected = "{\"_csrf\":...
CSS How to set div height 100% minus nPx
...
Here is a working css, tested under Firefox / IE7 / Safari / Chrome / Opera.
* {margin:0px;padding:0px;overflow:hidden}
div {position:absolute}
div#header {top:0px;left:0px;right:0px;height:60px}
div#wrapper {top:60px;left:0px;right:0px;bottom:0px...
Can I force a page break in HTML printing?
... things in CSS, this doesn't always work consistently across the board, so test the living daylights out of it, lest you have angry users wondering why your site prints piles of extra blank pages!
– Zoe
Nov 2 '09 at 22:17
...
Not equal != operator on NULL
...
The only test for NULL is IS NULL or IS NOT NULL. Testing for equality is nonsensical because by definition one doesn't know what the value is.
Here is a wikipedia article to read:
https://en.wikipedia.org/wiki/Null_(SQL)
...
Disable double-tap “zoom” option in browser on touch devices
...
Doesn't work on latest iOS when double tapping an image.
– Adam Silver
Aug 3 at 15:49
|
...
WordPress asking for my FTP credentials to install plugins
...filesystem_method. Wordpress tries to create a file 'wp-content/temp-write-test-'.time(). If this fails it assumes that you can only use FTP. But this might not be true, if wp-content itself is not writable, but for example wp-content/plugins is. Then, forcing FS_METHOD works.
–...
How can I use interface as a C# generic type constraint?
...olving the halting problem.
Case 1: using a type
Example:
public class TestClass : SomeClass<IMyInterface> { ... }
Example 2:
public class TestClass
{
SomeClass<IMyInterface> myMember; // or a property, method, etc.
}
Basically this involves scanning all types, inheritan...
Creating the Singleton design pattern in PHP5
...] = new static;
}
return self::$instances[$cls];
}
}
Test code:
class Foo extends Singleton {}
class Bar extends Singleton {}
echo get_class(Foo::getInstance()) . "\n";
echo get_class(Bar::getInstance()) . "\n";
...