大约有 46,000 项符合查询结果(耗时:0.0522秒) [XML]
How do I get a list of column names from a psycopg2 cursor?
...
10 Answers
10
Active
...
Python - Create list with numbers between 2 values?
...s to be 16+1 = 17
EDIT:
To respond to the question about incrementing by 0.5, the easiest option would probably be to use numpy's arange() and .tolist():
>>> import numpy as np
>>> np.arange(11, 17, 0.5).tolist()
[11.0, 11.5, 12.0, 12.5, 13.0, 13.5,
14.0, 14.5, 15.0, 15.5, 16....
Convert an integer to a float number
...about this. a := uint(8); b := uint(5); c := float32(a/b) will make c be 1.00000, not 1.6.
– isomorphismes
Nov 9 '19 at 20:00
...
Is there a performance difference between i++ and ++i in C++?
... |
edited Mar 29 '18 at 20:08
zar
8,36377 gold badges6868 silver badges125125 bronze badges
answered Au...
How to get the first word of a sentence in PHP?
...
$myvalue = 'Test me more';
$arr = explode(' ',trim($myvalue));
echo $arr[0]; // will print Test
share
|
improve this answer
|
follow
|
...
Is it possible to set transparency in CSS3 box-shadow?
..., browser support for both box-shadow and rgba() is roughly the same.
/* 50% black box shadow */
box-shadow: 10px 10px 10px rgba(0, 0, 0, 0.5);
div {
width: 200px;
height: 50px;
line-height: 50px;
text-align: center;
color: white;
background-color: red;
marg...
What happens if I define a 0-size array in C/C++?
... curious, what actually happens if I define a zero-length array int array[0]; in code? GCC doesn't complain at all.
7 Ans...
Why does changing the sum order returns a different result?
...
+500
Maybe this question is stupid, but why does simply changing the order of the elements affects the result?
It will change the poi...
What is the zero for string?
...="" {
To pass a zero string in stringID, use
k := NewKey(c, "kind", "", 0, p)
From the specification :
When memory is allocated to store a value, either through a
declaration or a call of make or new, and no explicit initialization
is provided, the memory is given a default initializati...
Why do I need 'b' to encode a string with Base64?
...s 8-bit binary byte data and encodes it uses only the characters A-Z, a-z, 0-9, +, /* so it can be transmitted over channels that do not preserve all 8-bits of data, such as email.
Hence, it wants a string of 8-bit bytes. You create those in Python 3 with the b'' syntax.
If you remove the b, it be...