大约有 45,000 项符合查询结果（耗时：0.0511秒） [XML]
Coding Practices which enable the compiler/optimizer to make a faster program
...his can be a huge help for getting around aliasing slowdowns. For example, if your code looks like
void DoSomething(const Foo& foo1, const Foo* foo2, int numFoo, Foo& barOut)
{
for (int i=0; i<numFoo, i++)
{
barOut.munge(foo1, foo2[i]);
}
}
the compiler doesn't kno...
Best way to do multi-row insert in Oracle?
...
Being picky, but the formatting makes more sense if you put "union all" at the end of each select line (except for the last).
– Jamie
Apr 25 '17 at 20:34
...
What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
...andles Qt's C++
extensions.
The moc tool reads a C++ header file.
If it finds one or more class
declarations that contain the Q_OBJECT
macro, it produces a C++ source file
containing the meta-object code for
those classes. Among other things,
meta-object code is required for the
...
How do I replace NA values with zeros in an R dataframe?
...u post it and not worked. Because this I posted the question. But I tried know and worked perfectly. I think I was doing something wrong.
– Renato Dinhani
Nov 17 '11 at 14:08
12
...
How to assert two list contain the same elements in Python? [duplicate]
...simple example which compares two lists having the same elements but in a different order.
using assertCountEqual the test will succeed
using assertListEqual the test will fail due to the order difference of the two lists
Here a little example script.
import unittest
class TestListElements(un...
Is it a good practice to use try-except-else in Python?
...
"I do not know if it is out of ignorance, but I do not like that
kind of programming, as it is using exceptions to perform flow control."
In the Python world, using exceptions for flow control is common and normal.
Even the Python ...
Spring RestTemplate timeout
...s for all calls through this rest template (which is a singleton). Do you know if it is possible to control the timeouts per request? (eg: 10 sec for a post call and 5 sec for a get call etc)
– codesalsa
Apr 20 '16 at 23:39
...
Is there Selected Tab Changed Event in the standard WPF Tab Control
...Control_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (e.Source is TabControl)
{
//do work when tab is changed
}
}
share
|
improve this answer
|
...
CSS Font Border?
With all the new CSS3 border stuff going on ( -webkit , ...) is it now possible to add a border to your font? (Like the solid white border around the blue Twitter logo). If not, are there any not-too-ugly hacks that will accomplish this in CSS/XHTML or do I still need to fire up Photoshop?
...
jQuery get value of selected radio button
The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id.
...