大约有 47,000 项符合查询结果(耗时:0.0488秒) [XML]
Formatting a number with leading zeros in PHP [duplicate]
... leading zeros for numbers less than 2 digits. Great for making a timezone SELECT in HTML.
– Volomike
Aug 8 '16 at 4:22
2
...
Getting an object from an NSSet
...se filteredSetUsingPredicate if you have some kind of unique identifier to select the object you need.
First create the predicate (assuming your unique id in the object is called "identifier" and it is an NSString):
NSPredicate *myPredicate = [NSPredicate predicateWithFormat:@"identifier == %@", i...
Unable to create Android Virtual Device
... "SDK Platforms," check the "Show Packages" box to see the system images.
Select the ones you want, click "Apply" and voilà!
share
|
improve this answer
|
follow
...
Converting strings to floats in a DataFrame
...hole dataframe or just individual columns. It also gives you an ability to select how to treat stuff that can't be converted to numeric values:
import pandas as pd
s = pd.Series(['1.0', '2', -3])
pd.to_numeric(s)
s = pd.Series(['apple', '1.0', '2', -3])
pd.to_numeric(s, errors='ignore')
pd.to_numer...
increment date by one month
... return $dateReturned;
}
Example:
$startDate = '2014-06-03'; // select date in Y-m-d format
$nMonths = 1; // choose how many months you want to move ahead
$final = endCycle($startDate, $nMonths); // output: 2014-07-02
...
python design patterns [closed]
...
You may also wish to read this article (select the .pdf file), which discusses Design Patterns in dynamic object oriented languages (i.e. Python). To quote the page:
This paper explores how the patterns from the "Gang of Four", or "GOF" book, as it is often cal...
How do I prevent an Android device from going to sleep programmatically?
...
This should be the selected answer. Simple, clean and as Android intended. Thank you.
– Lior Iluz
Jan 21 '14 at 5:44
2
...
Apache2: 'AH01630: client denied by server configuration'
...activity)
In activity monitor search for httpd which is the Apache service
Select the one that belongs to root and click X on the top left to close it.
At that point I immediately stopped getting 403 errors and everything started working as expected. Weird thing is i didn't even have to restart ap...
Microsoft Web API: How do you do a Server.MapPath?
...
The selected answer did not work in my Web API application. I had to use
System.Web.HttpRuntime.AppDomainAppPath
share
|
imp...
One-liner to take some properties from object in ES 6
...
Why do you use hasOwnProperty? If the fields are hand-selected, even in seems to be more appropriate; although I'd go for omitting the check completely and just let them default to undefined.
– Bergi
Nov 24 '15 at 0:19
...
