大约有 47,000 项符合查询结果（耗时：0.0817秒） [XML]
How can I delay a method call for 1 second?
...
performSelector:withObject:afterDelay:
Document Reference
share
|
improve this answer
|
follow
...
How to use XPath in Python?
...thFreeContext(). This is not very Pythonic.
If you are doing simple path selection, stick with ElementTree ( which is included in Python 2.5 ). If you need full spec compliance or raw speed and can cope with the distribution of native code, go with libxml2.
Sample of libxml2 XPath Use
import l...
CreateProcess error=206, The filename or extension is too long when running main() method
...
In intellij there is an option to 'shorten command line', select 'JAR manifest' or '@argFiles' would solve the problem, basically it will put your lengthy class path into a jar file or a temp file
share
...
Remove Elements from a HashSet while Iterating [duplicate]
...
Does it need to be whilst iterating? If all you're doing is filtering or selecting I would suggest using Apache Commons CollectionUtils. There are some powerful tools there and it makes your code "cooler."
Here's an implementation that should provide what you need:
Set<Integer> myIntegerS...
Date only from TextBoxFor()
...answer for MVC4 - it allows me to use jquery UI datepicker and formats the selection doing this:@Html.TextBoxFor(m => m.SomeDate, "{0:MM/dd/yyyy}", new { @id="datepicker" })
– ericb
Apr 14 '13 at 18:46
...
How to do 3 table JOIN in UPDATE query?
...
This does an implicit JOIN in the same way doing SELECT * FROM TABLE_A, TABLE_B ... does
– Madbreaks
Sep 22 '15 at 22:26
...
Virtualizing an ItemsControl?
...the sort of thing I was looking for! I was looking for a different kind of selection behavior than a listbox and at the time I thought it would be easiest to do with an items control.
– Rachel
May 7 '10 at 12:20
...
How to calculate UILabel width based on text length?
...
The selected answer is correct for iOS 6 and below.
In iOS 7, sizeWithFont:constrainedToSize:lineBreakMode: has been deprecated. It is now recommended you use boundingRectWithSize:options:attributes:context:.
CGRect expectedLab...
CSV new-line character seen in unquoted field error
...e text files that use CR for end of line. If using MS Office make sure you select either plain CSV format or CSV (MS-DOS). Do not use CSV (Macintosh) as save-as type.
My preferred EOL version would be LF (Unix/Linux/Apple), but I don't think MS Office provides the option to save in this format.
...
Ruby on Rails: how do I sort with two columns using ActiveRecord?
...ersonally I find it easier to manage.
SQL gets produced in one step only:
SELECT "models".* FROM "models" ORDER BY "models"."etc" ASC, "models"."bar" DESC, "models"."foo" ASC
Thusly, for the original question:
Model.order(:updated_at).order(:price)
You need not declare data type, ActiveRecord ...