大约有 22,535 项符合查询结果(耗时:0.0442秒) [XML]
php execute a background process
... the command must be redirected to a file or another output stream
// http://ca.php.net/manual/en/function.exec.php
exec("php background.php > testoutput.php 2>&1 & echo $!", $output);
echo "<pre> foreground end time = " . time() . "</pre>";
file_put_con...
Why does InetAddress.isReachable return false, when I can ping the IP address?
...y of the internet in Java?
And even a reported bug on this same matter :
http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4921816
Part 1 : A reproducible example of the problem
Note that in this case, it fails.
//also, this fails for an invalid address, like "www.sjdosgoogle.com1234s...
How do you view ALL text from an ntext or nvarchar(max) in SSMS?
... can use "Copy current cell 1:1" to copy original cell data to clipboard:
http://www.ssmsboost.com/Features/ssms-add-in-copy-results-grid-cell-contents-line-with-breaks
Or, alternatively, you can open cell contents in external text editor (notepad++ or notepad) using "Cell visualizers" feature: ht...
What are the uses of “using” in C#?
...
Microsoft documentation states that using has a double function (https://msdn.microsoft.com/en-us/library/zhdeatwt.aspx), both as a directive and in statements. As a statement, as it was pointed out here in other answers, the keyword is basically syntactic sugar to determine a scope to dis...
variable === undefined vs. typeof variable === “undefined”
...ed, may take a look here, but it seems to be a chrome optimization only.
http://jsperf.com/type-of-undefined-vs-undefined/30
http://jsperf.com/type-of-undefined-vs-undefined
share
|
improve this ...
How can I make a Python script standalone executable to run without ANY dependency?
...is not working;
It is necessary to create a setup.py file for it to work. http://www.py2exe.org/index.cgi/Tutorial#Step2;
I have had problems with dependencies that you have to solve by importing packages in the setup file;
I was not able to make it work together with PyQt.
This last reason mad...
Enterprise Library Unity vs Other IoC Containers [closed]
...braries object retrieval can be negated by using the CommonServiceLocator: http://www.codeplex.com/CommonServiceLocator
That leaves us with initialization, which is done in two ways: via code or via XML configuration (app.config/web.config/custom.config). Some support both, some support only one. ...
How to set default values in Rails?
...down
remove_column :accounts, :ssl_enabled
end
end
More info here: http://api.rubyonrails.org/classes/ActiveRecord/Migration.html
2. Use a callback
E.G. before_validation_on_create
More info here: http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html#M002147
...
Passing data between controllers in Angular JS?
... the description, seems as though you should be using a service. Check out http://egghead.io/lessons/angularjs-sharing-data-between-controllers and AngularJS Service Passing Data Between Controllers to see some examples.
You could define your product service (as a factory) as such:
app.factory('pr...
How to make vi redraw screen?
...T100 type terminals )
^L ( does not work with Televideo terminals )
From http://www.cs.rit.edu/~cslab/vi.html#A1.4 (dead link; see archive)
As noted in the comments Vim now uses ^R for redo and ^L alone for redraw.
share
...
