大约有 15,000 项符合查询结果（耗时：0.0300秒） [XML]
Python 3.x rounding behavior
...liar with this module. Any idea how I would get the behavior of Python v 2.x? The examples you show don't seem to do that. Just curious if that would be possible.
– Levon
May 31 '12 at 2:05
...
boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...o or more fields of a given table The analogous concept in Boost MultiIndex is Composite keys
In relational databases, composite keys depend on two or more fields of a given table. The analogous concept in Boost.MultiIndex is modeled by means of composite_key, as shown in the example:
stru...
How to use Greek symbols in ggplot2?
.... Unfortunately I cannot figure out how to put those greek symbols on the x axis (at the tick marks) and also make them appear in the legend. Is there any way to do it?
...
Copying PostgreSQL database to another server
...
I would expect that you should be able to copy a remote database with name x to a local database with name y, but @Ferran's solution does not work for this... It looks to me like porneL's solution just leaves the bzip2 files on the s...
Case insensitive access for generic dictionary
...r);
Or create a new case-insensitive dictionary with the contents of an existing case-sensitive dictionary (if you're sure there are no case collisions):-
var oldDictionary = ...;
var comparer = StringComparer.OrdinalIgnoreCase;
var newDictionary = new Dictionary<string, int>(oldDictionary,...
In pure functional languages, is there an algorithm to get the inverse function?
...t do it though and none of the functional languages have that option. For example:
f :: a -> Int
f _ = 1
This function does not have an inverse.
share
|
improve this answer
|
...
How to properly compare two Integers in Java?
I know that if you compare a boxed primitive Integer with a constant such as:
10 Answers
...
Unresolved external symbol on static class members
...e C++ standard, you must add the definitions to match your declarations of X and Y
unsigned char test::X;
unsigned char test::Y;
somewhere. You might want to also initialize a static member
unsigned char test::X = 4;
and again, you do that in the definition (usually in a CXX file) not in the decl...
Curl GET request with json parameter
..." 'server:5050/a/c/getName{"param0":"pradeep"}'
use option -i instead of x.
share
|
improve this answer
|
follow
|
...
Why are floating point numbers inaccurate?
...ing point numbers are represented a lot like scientific notation: with an exponent and a mantissa (also called the significand). A very simple number, say 9.2, is actually this fraction:
5179139571476070 * 2 -49
Where the exponent is -49 and the mantissa is 5179139571476070. The reason it is i...