大约有 19,600 项符合查询结果（耗时：0.0471秒） [XML]
random.seed(): What does it do?
...dom, because it runs on algorithms. Algorithms always give the same output based on the same input. This means, it depends on the value of the seed. So, in order to make it more random, time is automatically assigned to seed().
...
Percentage width in a RelativeLayout
...f available space.
Subclass of RelativeLayout that supports percentage based dimensions
and margins. You can specify dimension or a margin of child by using
attributes with "Percent" suffix.
<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/ap...
Does PostgreSQL support “accent insensitive” collations?
...ver, it's possible to specify an "accent insensitive" collation (for a database, table or column), which means that it's possible for a query like
...
Highlight all occurrence of a selected word?
...
Search based solutions (*, /...) move cursor, which may be unfortunate.
An alternative is to use enhanced mark.vim plugin, then complete your .vimrc to let double-click trigger highlighting (I don't know how a keyboard selection ma...
Update MongoDB field using value of another field
...
For a database with high activity, you may run into issues where your updates affect actively changing records and for this reason I recommend using snapshot()
db.person.find().snapshot().forEach( function (hombre) {
hombre.name ...
Is there any connection string parser in C#?
...tringBuilder class.
The DbConnectionStringBuilder class
provides the base class from which the
strongly typed connection string
builders (SqlConnectionStringBuilder,
OleDbConnectionStringBuilder, and so
on) derive. The connection string
builders let developers
programmatically crea...
What is the purpose of the “role” attribute in HTML?
...ike HTML-AAM. Some of the new HTML5 elements (dialog, main, etc.) are even based on the original ARIA roles.
http://www.w3.org/TR/wai-aria/
There are a few primary reasons to use roles in addition to your native semantic element.
Reason #1. Overriding the role where no host language element is appro...
What should I do when 'svn cleanup' fails?
...ile in the .svn directory (I also deleted the offending file in .svn/props-base), did a cleanup, and resumed my update.
share
|
improve this answer
|
follow
|
...
How do I auto size a UIScrollView to fit its content
... method I've ever come across to update the content size of a UIScrollView based on its contained subviews:
Objective-C
CGRect contentRect = CGRectZero;
for (UIView *view in self.scrollView.subviews) {
contentRect = CGRectUnion(contentRect, view.frame);
}
self.scrollView.contentSize = con...
What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
... I understand that it has something to do with having to make a lot of database queries for something that seems simple in the object world.
...