大约有 11,400 项符合查询结果(耗时:0.0534秒) [XML]
Why does C++11 not support designated initializer lists as C99? [closed]
...
C++ has constructors. If it makes sense to initialize just one member then that can be expressed in the program by implementing an appropriate constructor. This is the sort of abstraction C++ promotes.
On the other hand the designated initializers feature is more about exposing and making ...
Changing every value in a hash in Ruby
I want to change every value in a hash so as to add '%' before and after the value so
11 Answers
...
How do I fetch lines before/after the grep result in bash?
Hi I'm very new to bash programming. I want a way to search in a given Text. For that I use grep function:
4 Answers
...
Awaiting multiple Tasks with different results
...wait:
var catTask = FeedCat();
var houseTask = SellHouse();
var carTask = BuyCar();
await Task.WhenAll(catTask, houseTask, carTask);
var cat = await catTask;
var house = await houseTask;
var car = await carTask;
You can also use Task.Result (since you know by this point they have all completed ...
How to play with Control.Monad.Writer in haskell?
... to functional programming and recently learning at Learn You a Haskell , but when I went through this chapter , I got stuck with the program below:
...
defaultdict of defaultdict?
...
Yes like this:
defaultdict(lambda: defaultdict(int))
The argument of a defaultdict (in this case is lambda: defaultdict(int)) will be called when you try to access a key that doesn't exist. The return value of it will be set as the new value of this key...
Sort a text file by line length including spaces
...-n -s | cut -d" " -f2-
Or, to do your original (perhaps unintentional) sub-sorting of any equal-length lines:
cat testfile | awk '{ print length, $0 }' | sort -n | cut -d" " -f2-
In both cases, we have solved your stated problem by moving away from awk for your final cut.
Lines of matching len...
Query grants for a table in postgres
How can I query all GRANTS granted to an object in postgres?
7 Answers
7
...
Android Bitmap to Base64 String
How do I convert a large Bitmap (photo taken with the phone's camera) to a Base64 String?
7 Answers
...
HTML inside Twitter Bootstrap popover
I am trying to display HTML inside a bootstrap popover, but somehow it's not working. I found some answers here but it won't work for me. Please let me know if I'm doing something wrong.
...