大约有 47,000 项符合查询结果（耗时：0.0743秒） [XML]
best way to preserve numpy arrays on disk
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edited Apr 14 '15 at 15:00
answered Mar 8 '12 at 15:02
Jo...
Picking a random element from a set
...eal life, the Random object should be rather more shared than this
int i = 0;
for(Object obj : myhashSet)
{
if (i == item)
return obj;
i++;
}
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improve this answer
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Getting the last element of a list
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edited Nov 20 '18 at 23:14
answered May 30 '09 at 19:29
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SQLite UPSERT / UPDATE OR INSERT
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This is a late answer. Starting from SQLIte 3.24.0, released on June 4, 2018, there is finally a support for UPSERT clause following PostgreSQL syntax.
INSERT INTO players (user_name, age)
VALUES('steven', 32)
ON CONFLICT(user_name)
DO UPDATE SET age=excluded.age;
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How do you convert a jQuery object into a string?
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608
I assume you're asking for the full HTML string. If that's the case, something like this will d...
How to get the filename without the extension in Java?
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edited Jul 15 '15 at 0:45
jacksondc
56011 gold badge66 silver badges1717 bronze badges
answered Nov...
Checking Bash exit status of several commands efficiently
...mmand.
function mytest {
"$@"
local status=$?
if (( status != 0 )); then
echo "error with $1" >&2
fi
return $status
}
mytest "$command1"
mytest "$command2"
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How can I put a ListView into a ScrollView without it collapsing?
...uhammad Babar
7,71455 gold badges3232 silver badges5050 bronze badges
answered Aug 16 '10 at 18:19
Romain GuyRomain Guy
93.8k1717 ...
Is there a way to instantiate objects from a string holding their class name?
...Map()->find(s);
if(it == getMap()->end())
return 0;
return it->second();
}
protected:
static map_type * getMap() {
// never delete'ed. (exist until program termination)
// because we can't guarantee correct destruction order
if(!...
What is “stdafx.h” used for in Visual Studio?
...afx.h is automatically generated when I start a project in Visual Studio 2010. I need to make a cross-platform C++ library, so I don't/can't use this header file.
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