大约有 47,000 项符合查询结果（耗时：0.0667秒） [XML]
How to prevent form resubmission when page is refreshed (F5 / CTRL+R)
...problem is that after the user submits the text, they can refresh the page and the data gets submitted again without filling the form again. I could redirect the user to another page after the text is submitted, but I want users to stay on the same page.
...
SQL update fields of one table from fields of another one
...
You can use the non-standard FROM clause.
UPDATE b
SET column1 = a.column1,
column2 = a.column2,
column3 = a.column3
FROM a
WHERE a.id = b.id
AND b.id = 1
share
...
Difference between shadowing and overriding in C#?
What's difference between shadowing and overriding a method in C#?
6 Answers
6
...
Mechanisms for tracking DB schema changes [closed]
What are the best methods for tracking and/or automating DB schema changes? Our team uses Subversion for version control and we've been able to automate some of our tasks this way (pushing builds up to a staging server, deploying tested code to a production server) but we're still doing database up...
What tools are there for functional programming in C?
...ional programming in C ( not C++). Obviously, C is a procedural language and doesn't really support functional programming natively.
...
How does SSL really work?
... then, this has turned into a fairly popular question/answer, so I have expanded it a bit and made it more precise.
TLS Capabilities
"SSL" is the name that is most often used to refer to this protocol, but SSL specifically refers to the proprietary protocol designed by Netscape in the mid 90's. "...
How to run multiple shells on Emacs
...
C-u runs the command universal-argument. It's a way of injecting an argument into the next command. You can read more about it with C-h k C-u (C-h k runs describe-key, very handy!)
– Matt Curtis
Sep 28 '...
How do I get the APK of an installed app without root access?
I'm trying to extract the APK file of an installed Android app WITHOUT root permissions.
11 Answers
...
How to intercept touches events on a MKMapView or UIWebView objects?
...Here's what I do: Implement a gesture recognizer that cannot be prevented and that cannot prevent other gesture recognizers. Add it to the map view, and then use the gestureRecognizer's touchesBegan, touchesMoved, etc. to your fancy.
How to detect any tap inside an MKMapView (sans tricks)
Wildca...
Strip spaces/tabs/newlines - python
...lied: runs of consecutive whitespace are regarded as a single
separator, and the result will contain no empty strings at the start
or end if the string has leading or trailing whitespace.
Demo:
>>> myString.split()
['I', 'want', 'to', 'Remove', 'all', 'white', 'spaces,', 'new', 'line...