大约有 38,000 项符合查询结果（耗时：0.0511秒） [XML]
Determine if a function exists in bash
...
|
show 6 more comments
82
...
Python timedelta in years
...
You need more than a timedelta to tell how many years have passed; you also need to know the beginning (or ending) date. (It's a leap year thing.)
Your best bet is to use the dateutil.relativedelta object, but that's a 3rd party m...
Is it good practice to use java.lang.String.intern()?
...() all appropriate strings on input so you don't have to worry about it anymore.
(from JGuru)
Third disadvantage (Java 7 or less only): interned Strings live in PermGen space, which is usually quite small; you may run into an OutOfMemoryError with plenty of free heap space.
(from Michael Borgward...
How to convert SSH keypairs generated using PuTTYgen (Windows) into key-pairs used by ssh-agent and
...i -f ~/.ssh/id_dsa_com.pub > ~/.ssh/id_dsa.pub
See this and this for more information.
share
|
improve this answer
|
follow
|
...
List of Stored Procedures/Functions Mysql Command Line
...lp show does not work as help is a mysql command line instruction. To get more info about the SHOW command, go straight to MySQL documentation page at: dev.mysql.com/doc/refman/5.1/en/show.html
– IvanD
Apr 29 '13 at 3:04
...
Select where count of one field is greater than one
...
So this will return the whole table if it contains more than 2 non null someField values or an empty result set if it doesn't.
– Martin Smith
Sep 14 '10 at 15:52
...
Test if something is not undefined in JavaScript
...
|
show 2 more comments
40
...
Algorithm to find Largest prime factor of a number
...
Actually there are several more efficient ways to find factors of big numbers (for smaller ones trial division works reasonably well).
One method which is very fast if the input number has two factors very close to its square root is known as Fermat ...
Retrieve the position (X,Y) of an HTML element relative to the browser window
...
|
show 12 more comments
333
...
How do I create a URL shortener?
...
|
show 20 more comments
56
...