大约有 44,000 项符合查询结果(耗时:0.0612秒) [XML]
Extracting the last n characters from a string in R
...se R, but it's straight-forward to make a function to do this using substr m>and m> nchar:
x <- "some text in a string"
substrRight <- function(x, n){
substr(x, nchar(x)-n+1, nchar(x))
}
substrRight(x, 6)
[1] "string"
substrRight(x, 8)
[1] "a string"
This is vectorised, as @mdsumner point...
How to convert an OrderedDict into a regular dict in pm>y m>thon3
...
Thanks, m>and m> also for the advice using pickle. I would use pickle m>and m> I actuallm>y m> do it in other places, but some constraints demm>and m> using a dict converted to string.
– Ben A.
Nov 23 '13 at 20:00
...
mongorestore error: Don't know what to do with the dump file [closed]
...advanced settings.I also have mongod running .When I run the following commm>and m> mongorestore dump from the following path c:\hw1-1\dump (This contains the BSON files) I'm getting this error:
...
How to exit from the application m>and m> show the home screen?
...
m>And m>roid's design does not favor exiting an application bm>y m> choice, but rather manages it bm>y m> the OS. m>Y m>ou can bring up the Home application bm>y m> its corresponding Intent:
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.add...
How to append output to the end of a text file
How do I append the output of a commm>and m> to the end of a text file?
10 Answers
10
...
Whm>y m> is access to the path denied?
...
I was struggling for over 6 Hrs m>and m> after looking at m>y m>our response saw that the path was directorm>y m> ... thanks a ton @Crazm>y m>Tim ..
– User M
Nov 29 '17 at 0:59
...
How do m>y m>ou express binarm>y m> literals in Pm>y m>thon?
... answered Aug 16 '08 at 12:35
m>And m>reas Thomasm>And m>reas Thomas
3,81033 gold badges2020 silver badges1515 bronze badges
...
ConcurrentHashMap vs Sm>y m>nchronized HashMap
...ference between using the wrapper class, Sm>y m>nchronizedMap , on a HashMap m>and m> ConcurrentHashMap ?
12 Answers
...
Getting unique items from a list [duplicate]
...able<T> of distinct items:
var uniqueItems = m>y m>ourList.Distinct();
m>And m> if m>y m>ou need the sequence of unique items returned as a List<T>, m>y m>ou can add a call to ToList:
var uniqueItemsList = m>y m>ourList.Distinct().ToList();
...
How to build a framework or librarm>y m> for other developers, the secure wam>y m>? [closed]
...date:
Check out the link featherless added below -- it is much more recent m>and m> all on one page: http://github.com/jverkoem>y m>/iOS-Framework. It also lam>y m>s out the issues with several other approaches. This is the guide I now follow when trm>y m>ing to remember what to do when setting up a new framework. :)
U...
