大约有 10,170 项符合查询结果（耗时：0.0382秒） [XML]
Printing a variable memory address in swift
Is there anyway to simulate the [NSString stringWithFormat:@"%p", myVar] , from Objective-C, in the new Swift language?
15...
How to make a flat list out of list of lists?
I wonder whether there is a shortcut to make a simple list out of list of lists in Python.
42 Answers
...
Unix's 'ls' sort by name
Can you sort an ls listing by name?
11 Answers
11
...
Preferred method to store PHP arrays (json_encode vs serialize)
I need to store a multi-dimensional associative array of data in a flat file for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
...
Position of least significant bit that is set
I am looking for an efficient way to determine the position of the least significant bit that is set in an integer, e.g. for 0x0FF0 it would be 4.
...
What are transparent comparators?
In C++14, associative containers seem to have changed from C++11 – [associative.reqmts]/13 says:
4 Answers
...
How does deriving work in Haskell?
Algebraic Data Types (ADTs) in Haskell can automatically become instances of some typeclasse s (like Show , Eq ) by deriving from them.
...
How do I append one string to another in Python?
I want an efficient way to append one string to another in Python, other than the following.
10 Answers
...
How to get line count of a large file cheaply in Python?
I need to get a line count of a large file (hundreds of thousands of lines) in python. What is the most efficient way both memory- and time-wise?
...
is it possible to select EXISTS directly as a bit?
I was wondering if it's possible to do something like this (which doesn't work):
9 Answers
...