大约有 47,000 项符合查询结果（耗时：0.0685秒） [XML]
Argparse: Required arguments listed under “optional arguments”?
...
Parameters starting with - or -- are usually considered optional. All other parameters are positional parameters and as such required by design (like positional function arguments). It is possible to require optional arguments, but this is a bit against their desig...
How to change Elasticsearch max memory size
...
I can confirm this works for aws ami instance (installed with RPM), but first set MAX_LOCKED_MEMORY=unlimited in /etc/sysconfig/elasticsearch and bootstrap.memory_lock: true in /etc/elasticsearch/elasticsearch.yml
– mork
May 4 '17 at 16:...
setTimeout / clearTimeout problems
... Christian C. SalvadóChristian C. Salvadó
689k171171 gold badges886886 silver badges826826 bronze badges
add ...
Unicode equivalents for \w and \b in Java regular expressions?
...cter class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig .
...
check if variable is dataframe
...
answered Feb 11 '13 at 9:23
Jakub M.Jakub M.
25.6k3535 gold badges9797 silver badges158158 bronze badges
...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...an work around it from within psql by executing the DDL statement conditionally:
SELECT 'CREATE DATABASE mydb'
WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'mydb')\gexec
The manual:
\gexec
Sends the current query buffer to the server, then treats each column of each row of the query's...
What does `someObject.new` do in Java?
... And, as you can tell, this can be incredibly confusing. Ideally, inner classes should be implementation details of the outer class and not be exposed to the outside world.
– Eric Jablow
Mar 30 '13 at 23:45
...
Get selected subcommand with argparse
...
answered Jan 1 '11 at 21:10
robertrobert
27.8k88 gold badges5050 silver badges7070 bronze badges
...
How to print from GitHub
...rsion of this file anywhere in case I want to try out some edits ? This is all compressed / encrypted code in the gist currently.
– Anmol Saraf
Oct 1 '13 at 22:14
...
Python Threading String Arguments
...
answered Jul 11 '10 at 2:54
StephenStephen
40.9k77 gold badges5656 silver badges6767 bronze badges
...