大约有 43,200 项符合查询结果（耗时：0.0443秒） [XML]
How does this print “hello world”?
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+150
The number 4946144450195624 fits 64 bits, its binary representation is:
10001100100100111110111111110111101100011000010101000
Th...
XPath OR operator for different nodes
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221
All title nodes with zipcode or book node as parent:
Version 1:
//title[parent::zipcode|parent...
Canvas width and height in HTML5
...sByTagName('canvas')[0];
var ctx = c.getContext('2d');
ctx.lineWidth = 1;
ctx.strokeStyle = '#f00';
ctx.fillStyle = '#eff';
ctx.fillRect( 10.5, 10.5, 20, 20 );
ctx.strokeRect( 10.5, 10.5, 20, 20 );
ctx.fillRect( 40, 10.5, 20, 20 );
ctx.strokeRect( 40, 10.5, 20, 20 );
ctx.fillRect( ...
String replacement in Objective-C
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epatelepatel
44.4k1616 gold badges104104 silver badges142142 bronze badges
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Check if something is (not) in a list in Python
...6]
True
Or with tuples:
>>> (2, 3) not in [(2, 3), (5, 6), (9, 1)]
False
>>> (2, 3) not in [(2, 7), (7, 3), "hi"]
True
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jQuery - Detect value change on hidden input field
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answered Jan 22 '12 at 23:46
yycromanyycroman
6,91111 gold badge1616 silver badges1919 bronze badges
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COALESCE Function in TSQL
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answered Nov 13 '12 at 18:40
Bill MeliusBill Melius
1,03377 silver badges88 bronze badges
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List comprehension: Returning two (or more) items for each item
...t;> list(chain.from_iterable((f(x), g(x)) for x in range(3)))
[2, 0, 3, 1, 4, 4]
Timings:
from timeit import timeit
f = lambda x: x + 2
g = lambda x: x ** 2
def fg(x):
yield f(x)
yield g(x)
print timeit(stmt='list(chain.from_iterable((f(x), g(x)) for x in range(3)))',
s...
How can I auto increment the C# assembly version via our CI platform (Hudson)?
...crementing assembly version numbers and we frequently ship assemblies with 1.0.0.0 versions. Obviously, this causes a lot of headaches.
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