大约有 30,000 项符合查询结果（耗时：0.0434秒） [XML]
Is there a read-only generic dictionary available in .NET?
I'm returning a reference to a dictionary in my read only property. How do I prevent consumers from changing my data? If this were an IList I could simply return it AsReadOnly . Is there something similar I can do with a dictionary?
...
How to remove a field completely from a MongoDB document?
...'
db.example.update({}, {$unset: {words:1}}, false, true);
Refer this:
http://www.mongodb.org/display/DOCS/Updating#Updating-%24unset
UPDATE:
The above link no longer covers '$unset'ing. Be sure to add {multi: true} if you want to remove this field from all of the documents in the collection;...
Find number of months between two Dates in Ruby on Rails
....year * 12 + date2.month) - (date1.year * 12 + date1.month)
more info at http://www.ruby-forum.com/topic/72120
share
|
improve this answer
|
follow
|
...
How do I output coloured text to a Linux terminal?
How do I print coloured characters to a Linux terminal that supports it?
13 Answers
13...
SQLAlchemy: print the actual query
I'd really like to be able to print out valid SQL for my application, including values, rather than bind parameters, but it's not obvious how to do this in SQLAlchemy (by design, I'm fairly sure).
...
WAMP error: Forbidden You don't have permission to access /phpmyadmin/ on this server
...file are required).
System:
Windows 7
wampserver2.2d-x64
This works:
http://127.0.0.1/phpmyadmin/
This one fails:
http://localhost/phpmyadmin/
share
|
improve this answer
|
...
How to get a substring of text?
...
Since you tagged it Rails, you can use truncate:
http://api.rubyonrails.org/classes/ActionView/Helpers/TextHelper.html#method-i-truncate
Example:
truncate(@text, :length => 17)
Excerpt is nice to know too, it lets you display an excerpt of a text Like so:
excerpt(...
SVG Positioning
... SVG Elements can also be grouped by nesting svg elements:
<svg xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink">
<svg x="10">
<rect x="10" y="10" height="100" width="100" style="stroke:#ff0000;fill: #0000ff"/>
</svg>
<svg x="200"&...
How to change JFrame icon [duplicate]
... FileDownloaderNEW fd = new FileDownloaderNEW();
fd.download("http://icons.iconarchive.com/icons/artua/mac/512/Setting-icon.png", iconPath, false, false);
}
JFrame frm = new JFrame("Test");
ImageIcon imgicon = new ImageIcon(iconPath);
JButton bttn = new JButt...
Is it possible to make relative link to image in a markdown file in a gist?
...'m using syntax like this:
Here's an example:
https://github.com/mark-anders/relative-image-url
share
|
improve this answer
|
follow
...