大约有 47,000 项符合查询结果（耗时：0.0462秒） [XML]
Are there any O(1/n) algorithms?
...he following one:
def get_faster(list):
how_long = (1 / len(list)) * 100000
sleep(how_long)
Clearly, this function spends less time as the input size grows … at least until some limit, enforced by the hardware (precision of the numbers, minimum of time that sleep can wait, time to proce...
How can I get the client's IP address in ASP.NET MVC?
...e
{
szIP = szXForwardedFor;
if (szIP.IndexOf(",") > 0)
{
string [] arIPs = szIP.Split(',');
foreach (string item in arIPs)
{
if (!isPrivateIP(item))
{
return item;
...
Determine version of Entity Framework I am using?
...e two versions 1 and 2? And version 2 is referred to as Entity Framework 4.0?
10 Answers
...
Install dependencies globally and locally using package.json
...
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edited Jun 20 at 9:12
Community♦
111 silver badge
answered May 30 '12 at 9:05
...
Numpy: Get random set of rows from 2D array
...
200
>>> A = np.random.randint(5, size=(10,3))
>>> A
array([[1, 3, 0],
[3, ...
Pandas every nth row
...
207
I'd use iloc, which takes a row/column slice, both based on integer position and following norm...
Days between two dates? [duplicate]
...er of days:
>>> from datetime import date
>>> a = date(2011,11,24)
>>> b = date(2011,11,17)
>>> a-b
datetime.timedelta(7)
>>> (a-b).days
7
And it works with datetimes too — I think it rounds down to the nearest day:
>>> from datetime import...
Write bytes to file
I have a hexadecimal string (e.g 0CFE9E69271557822FE715A8B3E564BE ) and I want to write it to a file as bytes. For example,
...
How to center align the cells of a UICollectionView?
...
80
I think you can achieve the single line look by implementing something like this:
- (UIEdgeInse...