大约有 40,000 项符合查询结果（耗时：0.0372秒） [XML]
Unique (non-repeating) random numbers in O(1)?
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Use a Maximal Linear Feedback Shift Register.
It's implementable in a few lines of C and at runtime does little more than a couple test/branches, a little addition and bit shifting. It's not random, but it fools most people.
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Are there any CSV readers/writer libraries in C#? [closed]
...e this library without a custom type so that I can just iterate through my table grid (custom) and write out header and then pass each row field? I'm just looking for a way to prevent errors in the files (escaping properly etc).
– u84six
Oct 9 '18 at 21:09
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Why aren't python nested functions called closures?
...s in Python, and they match the definition of a closure. So why are they called nested functions instead of closures ?
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Why does using an Underscore character in a LIKE filter give me all the results?
...t end with 'abc'.
In your case you have searched by '%_%'. This will give all the rows with that column having one or more characters, that means any characters, as its value. This is why you are getting all the rows even though there is no _ in your column values.
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Daylight saving time and time zone best practices [closed]
...se location for systematic date-time conversion (say .NET culture or a SQL table) but provide a way for end-user to choose overrides if date-time is critical for your users.
If there are historical audit obligations involved (like telling exactly when Jo in AZ paid a bill 2 yrs ago in September) th...
Using %f with strftime() in Python to get microseconds
... right. I missed it on datetime since it wasn't at the bottom, like on the table for time. :P
– vallentin
Feb 13 '17 at 19:57
6
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How to bind function arguments without binding this?
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brings es6 to the table, still uses var :(
– Daniel Kobe
Nov 20 '16 at 3:47
7
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Capturing Groups From a Grep RegEx
...egex="[0-9]+_([a-z]+)_[0-9a-z]*"
for f in $files # unquoted in order to allow the glob to expand
do
if [[ $f =~ $regex ]]
then
name="${BASH_REMATCH[1]}"
echo "${name}.jpg" # concatenate strings
name="${name}.jpg" # same thing stored in a variable
else
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How to dynamically create CSS class in JavaScript and apply?
... dynamically in JavaScript and assign it to some HTML elements like - div, table, span, tr, etc and to some controls like asp:Textbox, Dropdownlist and datalist.
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Add a prefix to all Flask routes
...tant to the route at every definition. Is there a way to do this automatically?
10 Answers
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