大约有 45,000 项符合查询结果(耗时:0.0768秒) [XML]
how to customize `show processlist` in mysql?
... answered May 30 '09 at 12:09
AndomarAndomar
210k4141 gold badges330330 silver badges364364 bronze badges
...
Accessing an array out of bounds gives no error, why?
...defined Behavior.
There is a lot that is not specified by the language standard, for a variety of reasons. This is one of them.
In general, whenever you encounter undefined behavior, anything might happen. The application may crash, it may freeze, it may eject your CD-ROM drive or make demons com...
How do I create a new line in Javascript?
...a newline in an HTML page won't introduce a new line in an HTML document. (And it doesn't have to be double quotes, single quotes are fine as well.)
– T.J. Crowder
Apr 22 '11 at 17:36
...
What does numpy.random.seed(0) do?
What does np.random.seed do in the below code from a Scikit-Learn tutorial? I'm not very familiar with NumPy's random state generator stuff, so I'd really appreciate a layman's terms explanation of this.
...
Entity Framework code first unique column
I am using Entity Framework 4.3 and using Code Fist.
6 Answers
6
...
Can I get the name of the current controller in the view?
... Guides, it says:
The params hash will always contain the :controller and :action keys, but you should use the methods controller_name and action_name instead to access these values
ActionController Parameters
So let's say you have a CSS class active , that should be inserted in any link who...
How to map a composite key with JPA and Hibernate?
...y the specification also applies. So here they are:
2.1.4 Primary Keys and Entity Identity
...
A composite primary key must
correspond to either a single
persistent field or property or to a
set of such fields or properties as
described below. A primary key class
must be defi...
Why dict.get(key) instead of dict[key]?
...ctionary.get("bogus") or my_default? I've seen people use it in some cases and I was wondering if there's any advantage of using one instead of the other (other than readability)
– Algorithmatic
Dec 4 '15 at 21:57
...
What's the magic of “-” (a dash) in command-line parameters?
...
If you mean the naked - at the end of the tar command, that's common on many commands that want to use a file.
It allows you to specify standard input or output rather than an actual file name.
That's the case for your first and third example. For example, the cdrecord com...
Java / Android - How to print out a full stack trace?
In Android (Java) how do I print out a full stack trace? If my application crashes from nullPointerException or something, it prints out a (almost) full stack trace like so:
...
