大约有 45,000 项符合查询结果（耗时：0.0725秒） [XML]
What is the correct format to use for Date/Time in an XML file
...ring("o"). It is the XSD date format as well. That is the preferred format and a Standard Date and Time Format string, although you can use a manual format string if necessary if you don't want the 'T' between the date and time: date.ToString("yyyy-MM-dd HH:mm:ss");
EDIT: If you are using a generat...
Git - fatal: Unable to create '/path/my_project/.git/index.lock': File exists
...u have no other git processes running (which is the normal case), go ahead and delete that file.
share
|
improve this answer
|
follow
|
...
Pandas groupby: How to get a union of strings
...065 This
1 2 0.301084 is
2 3 0.463468 a
3 4 0.643961 random
4 1 0.866521 string
5 2 0.120737 !
In [6]: df.dtypes
Out[6]:
A int64
B float64
C object
dtype: object
When you apply your own function, there is not automatic exclusions of non-numeric columns...
How to count the number of set bits in a 32-bit integer?
...ays addition'.
The 'best' algorithm really depends on which CPU you are on and what your usage pattern is.
Some CPUs have a single built-in instruction to do it and others have parallel instructions which act on bit vectors. The parallel instructions (like x86's popcnt, on CPUs where it's supported)...
Remove trailing newline from the elements of a string list
... could I then just say stripped_list = map(str.strip, my_list) and then print stripped_list to print this new list?
– George Burrows
Nov 2 '11 at 17:02
19
...
Filter by property
...perties, you have to load the object into Python to evaluate the property--and at that point, you've already done all the work to load it.
share
|
improve this answer
|
follo...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
I made a class called QuickRandom , and its job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
...
SQL DROP TABLE foreign key constraint
...ferencing your table, you could use this SQL (if you're on SQL Server 2005 and up):
SELECT *
FROM sys.foreign_keys
WHERE referenced_object_id = object_id('Student')
and if there are any, with this statement here, you could create SQL statements to actually drop those FK relations:
SELECT
'...
What are the differences between django-tastypie and djangorestframework? [closed]
...at I've seen on their mailing list Daniel Lindsey et al are super-helpful, and Tastypie is stable, comprehensive and well documented
Excels in giving you a sensible set of default behaviour and making building an API with that style incredibly easy.
Django REST framework
Gives you HTML browse-ab...
Is it possible for git-merge to ignore line-ending differences?
...13:
More recent git versions authorize using merge with strategy recursive and strategy option (-X):
from "Git Merge and Fixing Mixed Spaces and Tabs with two Branches":
git merge -s recursive -Xignore-space-at-eol
But using "-Xignore-space-change" is also a possibility
Fab-V mentions below:
gi...