大约有 30,000 项符合查询结果（耗时：0.0575秒） [XML]
Get last result in interactive Python shell
... every result with _ and its numeric value
In [1]: 10
Out[1]: 10
In [2]: 32
Out[2]: 32
In [3]: _
Out[3]: 32
In [4]: _1
Out[4]: 10
In [5]: _2
Out[5]: 32
In [6]: _1 + _2
Out[6]: 42
In [7]: _6
Out[7]: 42
And it is possible to edit ranges of lines with the %ed macro too:
In [1]: def foo():
...
What is the concept of erasure in generics in Java?
...
Aniket Sahrawat
9,70522 gold badges2323 silver badges5454 bronze badges
answered Nov 24 '08 at 7:25
Jon SkeetJon Skeet
...
How do you run a Python script as a service in Windows?
...braries that come included with ActivePython or can be installed with pywin32 (Python for Windows extensions).
This is a basic skeleton for a simple service:
import win32serviceutil
import win32service
import win32event
import servicemanager
import socket
class AppServerSvc (win32serviceutil.Ser...
Django filter queryset __in for *every* item in list
...num_tags=2)
Out[30]: [<Photo: Photo object>]
Resulting query:
In [32]: print Photo.objects.filter(tags__in=[t1, t2]).annotate(num_tags=Count('tags')).filter(num_tags=2).query
SELECT "test_photo"."id", COUNT("test_photo_tags"."tag_id") AS "num_tags"
FROM "test_photo"
LEFT OUTER JOIN "test_ph...
Function to return only alpha-numeric characters from string?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Checking for a null int value from a Java ResultSet
...|
edited Mar 24 '14 at 11:32
answered May 27 '10 at 10:53
A...
How to override the [] operator in Python?
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Reflection: How to Invoke Method with parameters
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wompwomp
110k2121 gold badges223223 silver badges261261 bronze badges
...
Secure hash and salt for PHP passwords
...This answer was written in 2008.
Since then, PHP has given us password_hash and password_verify and, since their introduction, they are the recommended password hashing & checking method.
The theory of the answer is still a good read though.
TL;DR
Don'ts
Don't limit what character...
Pointers in C: when to use the ampersand and the asterisk?
...
t0mm13bt0mm13b
32.3k66 gold badges6767 silver badges101101 bronze badges
add...