大约有 48,000 项符合查询结果（耗时：0.0383秒） [XML]
What are 'get' and 'set' in Swift?
...
38
That's actually explained right before the code:
In addition to simple properties that are sto...
Set time part of DateTime in ruby
...in some scenarios.
– rmcsharry
Apr 13 '16 at 11:06
1
Your first purely ruby solution drops timezo...
Flatten an irregular list of lists
...
390
Using generator functions can make your example a little easier to read and probably boost the...
Accessing last x characters of a string in Bash
I found out that with ${string:0:3} one can access the first 3 characters of a string. Is there a equivalently easy method to access the last three characters?
...
Why does Python code run faster in a function?
...
3 Answers
3
Active
...
python setup.py uninstall
...e containing directory, e.g. /Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/my_module-0.1.egg/ on macOS. It has no files, but Python will still import an empty module:
>>> import my_module
>>> my_module.__file__
None
Once deleted, Python shows:
&g...
awk without printing newline
...
awk '{sum+=$3}; END {printf "%f",sum/NR}' ${file}_${f}_v1.xls >> to-plot-p.xls
print will insert a newline by default. You dont want that to happen, hence use printf instead.
...
How do I profile memory usage in Python?
...
123
This one has been answered already here: Python memory profiler
Basically you do something like...
How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
...
Standard C Preprocessor
$ cat xx.c
#define VARIABLE 3
#define PASTER(x,y) x ## _ ## y
#define EVALUATOR(x,y) PASTER(x,y)
#define NAME(fun) EVALUATOR(fun, VARIABLE)
extern void NAME(mine)(char *x);
$ gcc -E xx.c
# 1 "xx.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1...
Finding local maxima/minima with Numpy in a 1D numpy array
... Sven MarnachSven Marnach
446k100100 gold badges833833 silver badges753753 bronze badges
...