大约有 39,000 项符合查询结果(耗时:0.0712秒) [XML]
Way to read first few lines for pandas dataframe
...
which seems to work. Using one of the standard large test files (988504479 bytes, 5344499 lines):
In [1]: import pandas as pd
In [2]: time z = pd.read_csv("P00000001-ALL.csv", nrows=20)
CPU times: user 0.00 s, sys: 0.00 s, total: 0.00 s
Wall time: 0.00 s
In [3]: len(z)
Out[3]: 20
In [4]: time...
Execute SQLite script
I start up sqlite3 version 3.7.7, unix 11.4.2 using this command:
5 Answers
5
...
Doctrine and composite unique keys
...
answered Sep 29 '12 at 7:57
NikooleNikoole
3,57333 gold badges1515 silver badges2222 bronze badges
...
Django connection to PostgreSQL: “Peer authentication failed”
... |
edited Sep 18 '17 at 11:05
answered Nov 22 '11 at 18:39
...
Installing MSBuild 4.0 without Visual Studio 2010
...
Perhaps this is the SDK disguised slightly as a Windows 7 SDK.
Microsoft Windows SDK for Windows 7 and .NET Framework 4
UPDATE: Based off of a blog posts on the Windows SDK Blog the SDK that I linked to above seems to contain msbuild and supports building managed (.NET) applicat...
.net implementation of bcrypt
... ineine
13.5k88 gold badges5050 silver badges7878 bronze badges
...
Is there a way to iterate over a dictionary?
...
edited Aug 16 '09 at 15:27
Quinn Taylor
43.3k1515 gold badges107107 silver badges127127 bronze badges
a...
Git flow release branches and tags - with or without “v” prefix
... |
edited May 23 '17 at 10:31
Community♦
111 silver badge
answered Feb 7 '14 at 23:52
...
What does the > (greater than bracket) mean beside file names in Eclipse's Package Explorer?
I'm setting up a new dev machine with Eclipse 3.7 Indigo. After pulling a my code down from SVN, the source tree in the Package Explorer is intermittently littered with a > to the left of the file name The parent package names have them too. (Note that this is an AspectJ project, but I don't thi...
How to alias a table in Laravel Eloquent queries (or using Query Builder)?
...l table.
– peterm
Apr 21 '15 at 15:17
1
@peterm what if I use query builder in eloquent? I mean e...