大约有 47,000 项符合查询结果（耗时：0.0442秒） [XML]
Python: Tuples/dictionaries as keys, select, sort
...d like to organize them in a data structure in Python that allows for easy selection and sorting. My idea was to put them into a dictionary with tuples as keys, e.g.,
...
add column to mysql table if it does not exist
...rade_database_1_0_to_2_0()
BEGIN
-- rename a table safely
IF NOT EXISTS( (SELECT * FROM information_schema.COLUMNS WHERE TABLE_SCHEMA=DATABASE()
AND TABLE_NAME='my_old_table_name') ) THEN
RENAME TABLE
my_old_table_name TO my_new_table_name,
END IF;
-- add a column safely
IF NO...
Could not load file or assembly 'System.Web.Http 4.0.0 after update from 2012 to 2013
...b API 2.1 WebHost.
In solution explorer in the references right click and select manage nuget packages. (if not there install nuget)
In the manage NuGet Packages window on the left side click online then in top right search for Web Host and install Microsoft ASP.NET Web API 2.1 Web Host. (Once i...
Targeting .NET Framework 4.5 via Visual Studio 2010
...r (Build -> Configuration Manager) make sure the ".NET 4.5" platform is selected for your project.
Still in the configuration manager, create a new solution platform for ".NET 4.5" (you can base it off "Any CPU") and make sure ".NET 4.5" is selected for the solution.
Build your project and check ...
How can I tell IntelliJ's “Find in Files” to ignore generated files?
...for the Find
in Path dialog. (Mac users press command+shift+F)
Under Scope select Custom.
Choose a scope from the drop down list or create a Custom Scope by clicking on the ... button to the right of dropdown.
In the dialog that appears, click on the + button and select Local
On the right pane you...
What are the differences between 'call-template' and 'apply-templates' in XSL?
...ower of XSLT: It takes any number of XML nodes (whatever you define in the select attribute), iterates them (this is important: apply-templates works like a loop!) and finds matching templates for them:
<!-- sample XML snippet -->
<xml>
<foo /><bar /><baz />
</xml...
Using jquery to get all checked checkboxes with a certain class name
...? $(this).val() : "");
});
An example to demonstrate.
:checkbox is a selector for checkboxes (in fact, you could omit the input part of the selector, although I found niche cases where you would get strange results doing this in earlier versions of the library. I'm sure they are fixed in later...
Disable Maven warning message - “Selected war files include a WEB-INF/web.xml which will be ignored”
... },
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true,enableSnippets:true
});
}
});
...
MySQL - ORDER BY values within IN()
...
SELECT id, name
FROM mytable
WHERE name IN ('B', 'A', 'D', 'E', 'C')
ORDER BY FIELD(name, 'B', 'A', 'D', 'E', 'C')
The FIELD function returns the position of the first string in the remaining list of strings.
However, it i...
How to install both Python 2.x and Python 3.x in Windows
...ed Python 2.7.6.
How to...
Start > in the search type in environment select "Edit environment variables to your account"1
Scroll down to Path, select path, click edit.
Add C:\Python27;
so you should have paths to both versions of Python there, but if you don't this you can easily edit it so th...