大约有 16,000 项符合查询结果(耗时:0.0211秒) [XML]
Compare double to zero using epsilon
... certainly is not the same as someValue == 0. The whole idea of floating-point numbers is that they store an exponent and a significand. They therefore represent a value with a certain number of binary significant figures of precision (53 in the case of an IEEE double). The representable values are ...
Iterating through a range of dates in Python
...ingle_date in (start_date + timedelta(n) for n in range(day_count)):
print ...
And no list gets stored, only one generator is iterated over. Also the "if" in the generator seems to be unnecessary.
After all, a linear sequence should only require one iterator, not two.
Update after discussion wi...
Should C# methods that *can* be static be static? [closed]
...sheer number of call sites might make searching to see if it's possible to convert a static method to a non static one too costly. Many times people will see the number of calls, and say "ok... I better not change this method, but instead create a new one that does what I need".
That can result in ...
How to reference a file for variables using Bash?
...
Converting parameter file to Environment variables
Usually I go about parsing instead of sourcing, to avoid complexities of certain artifacts in my file. It also offers me ways to specially handle quotes and other things. My...
Write to .txt file?
How can I write a little piece of text into a .txt file?
I've been Googling for over 3-4 hours, but can't find out how to do it.
...
Zipping streams using JDK8 with lambda (java.util.stream.Streams.zip)
...iterator();
// Zipping looses DISTINCT and SORTED characteristics
int characteristics = aSpliterator.characteristics() & bSpliterator.characteristics() &
~(Spliterator.DISTINCT | Spliterator.SORTED);
long zipSize = ((characteristics & Spliterator.SIZED) != 0)
...
What is the Swift equivalent of respondsToSelector?
... func work() { }
func eat(food: AnyObject) { }
func sleep(hours: Int, minutes: Int) { }
}
let worker = Worker()
let canWork = worker.respondsToSelector(Selector("work")) // true
let canEat = worker.respondsToSelector(Selector("eat:")) // true
let canSleep = worker.respondsToSelector...
How to write LaTeX in IPython Notebook?
...:
from IPython.display import display, Math, Latex
display(Math(r'F(k) = \int_{-\infty}^{\infty} f(x) e^{2\pi i k} dx'))
share
|
improve this answer
|
follow
...
Why does ASP.NET webforms need the Runat=“Server” attribute?
...of runat="server" with an example on text box <input type="text"> by converting it to <input type="text" id="Textbox1" runat="server">
Doing this will give you programmatic access to the HTML element on
the server before the Web page is created and sent down to the client.
The HT...
C++ multiline string literal
...
Note that ` (and hence \n) is copied literally, but "` is converted into \". So MULTILINE(1, "2" \3) yields "1, \"2\" \3".
– Andreas Spindler
Sep 11 '13 at 12:58
...
