大约有 18,500 项符合查询结果（耗时：0.0243秒） [XML]
Python: changing value in a tuple
...anting to mutate an immutable container (therefore the "why" is a very valid question) is different than interpreting different formats some of which may be a tuple. Thanks for venting though :)
– Jon Clements♦
Jan 6 '18 at 17:19
...
Return multiple values to a method caller
I read the C++ version of this question but didn't really understand it.
27 Answers
...
Installation error: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED?
...application that lists all the applications present/ installed on the android device. But I'm getting the below error while i'm trying to run the code.
...
Catch checked change event of a checkbox
...
<input type="checkbox" id="something" />
$("#something").click( function(){
if( $(this).is(':checked') ) alert("checked");
});
Edit: Doing this will not catch when the checkbox changes for other reasons than a click, like using the keyboar...
How can I change the default width of a Twitter Bootstrap modal box?
...t.
In your own custom CSS file, you add:
body .modal {
/* new custom width */
width: 560px;
/* must be half of the width, minus scrollbar on the left (30px) */
margin-left: -280px;
}
In your case:
body .modal-admin {
/* new custom width */
width: 750px;
/* must be hal...
Does a UNIQUE constraint automatically create an INDEX on the field(s)?
...e keys are in fact B-tree type indexes.
A composite index on (email, user_id) is enough, you don't need a separate index on email only - MySQL can use leftmost parts of a composite index. There may be some border cases where the size of an index can slow down your queries, but you should not worry ...
Android: Scale a Drawable or background image?
...io) to the space allocated when the page gets created. Does anyone have an idea how to do this?
13 Answers
...
When restoring a backup, how do I disconnect all active connections?
...ster
Go
Declare @dbname sysname
Set @dbname = 'databaseName'
Declare @spid int
Select @spid = min(spid) from master.dbo.sysprocesses
where dbid = db_id(@dbname)
While @spid Is Not Null
Begin
Execute ('Kill ' + @spid)
Select @spid = min(spid) from master.dbo.sysprocesses
wh...
Creating an Android trial application that expires after a fixed time period
I have an application which I want to hit the market as a Paid app. I would like to have other version which would be a "trial" version with a time limit of say, 5 days?
...
.prop() vs .attr()
...e checked property is a Boolean, the style property is an object with individual properties for each style, the size property is a number.
Where both a property and an attribute with the same name exists, usually updating one will update the other, but this is not the case for certain attributes of ...