大约有 45,000 项符合查询结果（耗时：0.0810秒） [XML]
HTML colspan in CSS
...ty of solutions that include a bevy of alternatives, including absolute positioning, sizing, along with a similar variety of browser- and circumstance-specific caveats. Read, and make the best informed decision you can based on what you find.
...
PHP Regex to check date is in YYYY-MM-DD format
...follow
|
edited Jun 26 '17 at 9:32
Gregoire
3,54733 gold badges2222 silver badges3636 bronze badges
...
Returning IEnumerable vs. IQueryable
...xecuted in the database, if possible.
For the IEnumerable<T> case, it will be LINQ-to-object, meaning that all objects matching the original query will have to be loaded into memory from the database.
In code:
IQueryable<Customer> custs = ...;
// Later on...
var goldCustomers = custs...
How to set an environment variable only for the duration of the script?
On Linux (Ubuntu 11.04) in bash, is it possible to temporarily set an environment variable that will only be different from the normal variable for the duration of the script? For example, in a shell script, making an app that saves to HOME portable by temporarily setting HOME to a folder in the pre...
How to apply shell command to each line of a command output?
...
It's probably easiest to use xargs. In your case:
ls -1 | xargs -L1 echo
The -L flag ensures the input is read properly. From the man page of xargs:
-L number
Call utility for every number non-empty lines read.
A...
How do I read from parameters.yml in a controller in symfony2?
...tainer->getParameter('api_user');
This documentation chapter explains it.
While $this->get() method in a controller will load a service (doc)
In Symfony 2.7 and newer versions, to get a parameter in a controller you can use the following:
$this->getParameter('api_user');
...
#define macro for debug printing in C?
... do { if (DEBUG) fprintf(stderr, fmt, __VA_ARGS__); } while (0)
It assumes you are using C99 (the variable argument list notation is not supported in earlier versions). The do { ... } while (0) idiom ensures that the code acts like a statement (function call). The unconditional use of t...
How to wait for a BackgroundWorker to cancel?
...esetEvent _resetEvent = new AutoResetEvent(false);
public Form1()
{
InitializeComponent();
worker.DoWork += worker_DoWork;
}
public void Cancel()
{
worker.CancelAsync();
_resetEvent.WaitOne(); // will block until _resetEvent.Set() call made
}
void worker_DoWork(object sender, DoW...
iReport not starting using JRE 8
...Report 4.5 using te Windows installer. But when I try to start the iReport it shows the splash screen but does not start.
...
Regex (grep) for multi-line search needed [duplicate]
...
Without the need to install the grep variant pcregrep, you can do multiline search with grep.
$ grep -Pzo "(?s)^(\s*)\N*main.*?{.*?^\1}" *.c
Explanation:
-P activate perl-regexp for grep (a powerful extension of regular ex...