大约有 1,500 项符合查询结果（耗时：0.0113秒） [XML]
What is the purpose of setting a key in data.table?
...a very long time.
Consider the following example: suppose I have a table, ZIP, of all the zip codes in the US (>33,000) along with associated information (city, state, population, median income, etc.). If I want to look up the information for a specific zip code, the search (filter) is about 100...
How can I install a local gem?
...
I download a gem such as rubygems in zip format. So there is no .gem file here. How do I install this from local ? Thank you.
– Erran Morad
Jan 10 '15 at 0:15
...
What is the most efficient way to create a dictionary of two pandas Dataframe columns?
...dint(0,10,10000).reshape(5000,2),columns=list('AB'))
In [7]: %timeit dict(zip(df.A,df.B))
1000 loops, best of 3: 1.27 ms per loop
In [8]: %timeit pd.Series(df.A.values,index=df.B).to_dict()
1000 loops, best of 3: 987 us per loop
...
Emacs in Windows
... on a user basis and mimics emacs behavior on Linux. You can download the zip from any gnu software repository mirror in the emacs/windows folder. You want the file that is named emacs-xx.x-bin-i686-pc-mingw32.zip.
There are some great instructions for configuring emacs for windows here. Basical...
How to disable Google Chrome auto update?
...OR renaming it OR even better just in case I one day need to do an update: Zip the content for future potential re-use).
Easy solution :
1- Go to "C:\Program Files (x86)\Google\ and find the folder "update".
2- There are a couple of options to choose from:
A) first method: Rename the folder:
- ...
Can I install Python windows packages into virtualenvs?
... like binary installers for Windows made with distutils combine .exe with .zip into one .exe file. Change extension to .zip to see it's a valid zip file. I discovered this after reading answers to my question Where can I download binary eggs with psycopg2 for Windows?
UPDATE
As noted by Tritium21 ...
How do I rename all folders and files to lowercase on Linux?
...Just simply try the following if you don't need to care about efficiency.
zip -r foo.zip foo/*
unzip -LL foo.zip
share
|
improve this answer
|
follow
|
...
How do I resolve configuration errors with Nant 0.91?
...he problem was Windows 7 security related in that the downloaded NAnt 0.91 zip file needed additional security related configuration to be performed: before extracting, one must right click on the zip file, select Properties and under the General tab, click the button labelled Unblock, then click OK...
Disable developer mode extensions pop up in Chrome
...indows 7 or Windows 8:
Download Chrome group policy templates here
Copy [zip]\windows\admx\chrome.admx to c:\windows\policydefinitions
Copy [zip]\windows\admx\[yourlanguage]\chrome.adml to c:\windows\policydefinitions\[yourlanguage]\chrome.adml (not c:\windows\[yourlanguage])
In Chrome, go to t...
Upgrading PHP in XAMPP for Windows?
...ur data.
Download the latest binary version of PHP (make sure to get the .zip package not the installer)
De-archive it to a directory
Overwrite the contents of directory in the php subfolder of your XAMPP installation directory.
Overwrite the contents of the directory apache\bin with the newer ver...