大约有 47,000 项符合查询结果（耗时：0.0570秒） [XML]
Extract subset of key-value pairs from Python dictionary object?
...t that has several key value pairs (about 16), but I am only interested in 3 of them. What is the best way (shortest/efficient/most elegant) to achieve that?
...
Splitting string into multiple rows in Oracle
...
13 Answers
13
Active
...
How to know if two arrays have the same values
...
23 Answers
23
Active
...
Creating a new dictionary in Python
... |
edited Nov 8 '15 at 3:49
poolie
8,03611 gold badge3838 silver badges6666 bronze badges
answered De...
Changing the selected option of an HTML Select element
...
329
Vanilla JavaScript
Using plain old JavaScript:
var val = "Fish";
var sel = document.get...
What's the function like sum() but for multiplication? product()?
...
Update:
In Python 3.8, the prod function was added to the math module. See: math.prod().
Older info: Python 3.7 and prior
The function you're looking for would be called prod() or product() but Python doesn't have that function. So, you need...
Split array into chunks
... |
edited Jan 2 '19 at 16:32
answered Dec 13 '11 at 20:28
B...
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...
How do I activate C++ 11 in CMake?
...
CMake 3.1 introduced the CMAKE_CXX_STANDARD variable that you can use. If you know that you will always have CMake 3.1 available, you can just write this in your top-level CMakeLists.txt file, or put it right before any new target...
Easiest way to compare arrays in C#
...
Martin Prikryl
130k3232 gold badges294294 silver badges612612 bronze badges
answered Jul 12 '10 at 22:25
Quartermeist...