大约有 43,000 项符合查询结果(耗时:0.0441秒) [XML]
Set the selected index of a Dropdown using jQuery
...
First of all - that selector is pretty slow. It will scan every DOM element looking for the ids. It will be less of a performance hit if you can assign a class to the element.
$(".myselect")
To answer your question though, there are a few w...
How to use clock() in C++
...0;
int min = 0;
int hr = 0;
//cout << "Press any key to start:";
//char start = _gtech();
for (;;)
{
newline();
if(msec == 1000)
{
++sec;
msec = 0;
}
if(sec == 60)
...
SET versus SELECT when assigning variables?
What are the differences between the SET and SELECT statements when assigning variables in T-SQL?
4 Answers
...
You can't specify target table for update in FROM clause
...llow you to write queries like this:
UPDATE myTable
SET myTable.A =
(
SELECT B
FROM myTable
INNER JOIN ...
)
That is, if you're doing an UPDATE/INSERT/DELETE on a table, you can't reference that table in an inner query (you can however reference a field from that outer table...)
Th...
Max length for client ip address [duplicate]
...x digits separated by colons: 2001:0db8:85a3:0000:0000:8a2e:0370:7334. 39 characters is appropriate to store IPv6 addresses in this format.
Edit: However, there is a caveat, see @Deepak's answer for details about IPv4-mapped IPv6 addresses. (The correct maximum IPv6 string length is 45 characters....
problem with and :after with CSS in WebKit
I would like to add some style on a select box with the pseudo :after (to style my select box with 2 parts and without images). Here's the HTML:
...
UIButton: set image for selected-highlighted state
I set an images for button's states Normal,Highlighted and Selected, but when the button in selected state and I press/highlight it I didn't see my highlighted image but just grayed picture.
Is it possible to set an image for highlighted state when the button selected?
...
How to select all instances of a variable and edit variable name in Sublime
If I select a variable (not just any string) in my code, all other instances of that variable get a stroke (white outline) around them:
...
Javascript/jQuery: Set Values (Selection) in a multiple Select
I have a multiple select:
8 Answers
8
...
Is there a goto statement in Java?
...
@mwieczorek Not all. "char" is a primitive type and it's unsigned.
– Sergey Krivenkov
Nov 20 '18 at 9:47
add a comment
...