大约有 43,100 项符合查询结果（耗时：0.0475秒） [XML]
Differences between “BEGIN RSA PRIVATE KEY” and “BEGIN PRIVATE KEY”
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See https://polarssl.org/kb/cryptography/asn1-key-structures-in-der-and-pem (search the page f...
How to implement a queue using two stacks?
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710
Keep 2 stacks, let's call them inbox and outbox.
Enqueue:
Push the new element onto inbox
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MySQL's now() +1 day
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461
You can use:
NOW() + INTERVAL 1 DAY
If you are only interested in the date, not the date and ...
Javascript: formatting a rounded number to N decimals
...number, something like:
var s = number.toString();
if (s.indexOf('.') == -1) s += '.';
while (s.length < s.indexOf('.') + 4) s += '0';
(Note that this assumes that the regional settings of the client uses period as decimal separator, the code needs some more work to function for other settings...
Grep characters before and after match?
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187
3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o ...
Scala Doubles, and Precision
...e or round a Double? At one point in my code I would like a number like: 1.23456789 to be rounded to 1.23
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How to sort a collection by date in MongoDB?
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Safely limiting Ansible playbooks to a single machine?
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13 Answers
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How to convert an array of strings to an array of floats in numpy?
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181
Well, if you're reading the data in as a list, just do np.array(map(float, list_of_strings)) (...