大约有 10,700 项符合查询结果（耗时：0.0284秒） [XML]
Python argparse: default value or specified value
... thus:
myscript.py => debug is 7 (from default) in the first case and "None" in the second
myscript.py --debug => debug is 1 in each case
myscript.py --debug 2 => debug is 2 in each case
share
...
Run a single Maven plugin execution?
...s available in Maven 3.3.1.
The change will:
extend direct plugin invocation syntax to allow optional @execution-id parameter, e.g., org.apache.maven.plugins:maven-remote-resources-plugin:1.0:process@executionId.
So, as long as you give your execution an id:
mvn sql:execute@specific-executio...
What do helper and helper_method do?
...standard helper methods are not available in controllers). e.g. common use case:
#application_controller.rb
def current_user
@current_user ||= User.find_by_id!(session[:user_id])
end
helper_method :current_user
the helper method on the other hand, is for importing an entire helper to the views ...
How to import and use different packages of the same name in Go language?
...me explanation. Let me try to answer it.
Your example code doesn't work because you're trying to import two packages with the same name, which is: " template ".
import "html/template" // imports the package as `template`
import "text/template" // imports the package as `template` (again)
Impor...
How to go to a specific file in Chrome Developer Tools?
I am developing a web application with a heavy front-end approach. By using Dojo and the AMD-way, I currently have testing screens which may easily load over a hundred different javascript files.
...
How to uncompress a tar.gz in another directory
...
You can use the option -C (or --directory if you prefer long options) to give the target directory of your choice in case you are using the Gnu version of tar. The directory should exist:
mkdir foo
tar -xzf bar.tar.gz -C foo
...
Objective-C: Extract filename from path string
...
Taken from the NSString reference, you can use :
NSString *theFileName = [[string lastPathComponent] stringByDeletingPathExtension];
The lastPathComponent call will return thefile.ext, and the stringByDeletingPathExtension will remove the extension suffix from ...
Emacs: print key binding for a command or list all key bindings
In Emacs (GNU 23.2, *nix), how can I:
2 Answers
2
...
Convert NSNumber to int in Objective-C
...
basically [key intValue] (key is NSNumber)
– user924
Mar 26 '18 at 11:33
add a comment
...
Getting number of days in a month
...sInJuly = System.DateTime.DaysInMonth(2001, July);
// daysInFeb gets 28 because the year 1998 was not a leap year.
int daysInFeb = System.DateTime.DaysInMonth(1998, Feb);
// daysInFebLeap gets 29 because the year 1996 was a leap year.
int daysInFebLeap = System.DateTime.DaysInMonth(1996, Feb);
...