大约有 40,000 项符合查询结果（耗时：0.0296秒） [XML]
Set default CRAN mirror permanent in R
...TE MIRROR")))
to your .Rprofile
Alternatively, you can set the mirror site-wide in your Rprofile.site. The location of the file is given by ?Startup:
The
path of this file is taken from the value of the R_PROFILE
environment variable (after tilde expansion). If this variable ...
Rails: How does the respond_to block work?
... makes it easy to export data as CSV (or any other format) from your rails site.
The js line will cause a javascript file /posts.js (or /posts.js.coffee) to be rendered/executed. I've found that to be a light-weight way to create an Ajax enabled site using jQuery UI pop-ups.
...
How to determine the version of the C++ standard used by the compiler?
...ide to change the accepted answer, but they may no longer be active on the site. See: meta.stackexchange.com/questions/120568/…
– Dan Korn
Aug 18 '16 at 19:26
3
...
Among $_REQUEST, $_GET and $_POST which one is the fastest?
... and $_GET explicitly.
Using $_REQUEST should be unnecessary with proper site design anyway, and it comes with some downsides like leaving you open to easier CSRF/XSS attacks and other silliness that comes from storing data in the URL.
The speed difference should be minimal either way.
...
django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb
...operlyConfigured: Error loading MySQLdb module: dlopen(/Library/Python/2.7/site-packages/MySQL_python-1.2.4b4-py2.7-macosx-10.8-intel.egg/_mysql.so, 2): Library not loaded: libmysqlclient.18.dylib
Referenced from: /Library/Python/2.7/site-packages/MySQL_python-1.2.4b4-py2.7-macosx-10.8-intel.egg/_my...
Resize fields in Django Admin
...TextField: {'widget': Textarea(attrs={'rows':4, 'cols':40})},
}
admin.site.register(YourModel, YourModelAdmin)
share
|
improve this answer
|
follow
|
...
Wildcards in a Windows hosts file
...cal are redirected to localhost . The idea is that as I develop multiple sites, I can just add vhosts to Apache called site1.local , site2.local etc, and have them all resolve to localhost , while Apache serves a different site accordingly.
...
Fixing slow initial load for IIS
IIS has an annoying feature for low traffic websites where it recycles unused worker processes, causing the first user to the site after some time to get an extremely long delay (30+ seconds).
...
Creating virtual directories in IIS express
...username>\Documents\IISExpress\config folder.
Inside you can find the sites section that hold a section for each IIS Express configured site.
Add (or modify) a site section like this:
<site name="WebSiteWithVirtualDirectory" id="20">
<application path="/" applicationPool="Clr4Inte...
Where do I find the current C or C++ standard documents?
...king drafts for future standards are often available from the committee websites:
C++ committee website
C committee website
If you want to get drafts from the current or earlier C/C++ standards, there are some available for free on the internet:
For C:
ANSI X3.159-198 (C89):
I cannot find a ...