大约有 37,000 项符合查询结果（耗时：0.0545秒） [XML]
SQL selecting rows by most recent date
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edited Oct 9 '08 at 21:55
Adam Pierce
29.9k2121 gold badges6666 silver badges8686 bronze badges
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What are the correct link options to use std::thread in GCC under linux?
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101
I think on Linux pthread is used to implement std::thread so you need to specify the -pthread c...
Java: Difference between the setPreferredSize() and setSize() methods in components
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edited Jul 18 at 18:30
Dave Jarvis
27.6k3535 gold badges157157 silver badges281281 bronze badges
an...
When to use symbols instead of strings in Ruby?
...r this:
require 'benchmark'
require 'haml'
str = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: "checkbox"}').render
end
end.total
sym = Benchmark.measure do
10_000.times do
Haml::Engine.new('%input{type: :checkbox}').render
end
end.total
puts "String: " + st...
How to sort an array of hashes in ruby
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answered Mar 30 '11 at 8:48
GarethGareth
109k3030 gold badges141141 silver badges151151 bronze badges
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How do I simply create a patch from my latest git commit?
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302
In general,
git format-patch -n HEAD^
(check help for the many options), although it's reall...
How can I set Image source with base64
...ById('img')
.setAttribute(
'src', 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg=='
);
Real answer:
(And make sure you remove the line-breaks in the base64.)
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What is mattr_accessor in a Rails module?
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answered Oct 9 '08 at 1:49
AvdiAvdi
17.8k66 gold badges5151 silver badges5959 bronze badges
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why does DateTime.ToString(“dd/MM/yyyy”) give me dd-MM-yyyy?
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edited Jan 30 '14 at 7:03
shashwat
6,73377 gold badges5050 silver badges8585 bronze badges
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Using try vs if in python
... faster if exceptions really are exceptional. If result is None more than 50 % of the time, then using if is probably better.
To support this with a few measurements:
>>> import timeit
>>> timeit.timeit(setup="a=1;b=1", stmt="a/b") # no error checking
0.06379691968322732
>>...