大约有 25,400 项符合查询结果（耗时：0.0385秒） [XML]
Converting a Pandas GroupBy output from Series to DataFrame
...
g1 here is a DataFrame. It has a hierarchical index, though:
In [19]: type(g1)
Out[19]: pandas.core.frame.DataFrame
In [20]: g1.index
Out[20]:
MultiIndex([('Alice', 'Seattle'), ('Bob', 'Seattle'), ('Mallory', 'Portland'),
('Mallory', '...
.gitignore all the .DS_Store files in every folder and subfolder
...
I think the problem you're having is that in some earlier commit, you've accidentally added .DS_Store files to the repository. Of course, once a file is tracked in your repository, it will continue to be tracked even if it matches an entry in an applicable .gitignore fil...
How to manually expand a special variable (ex: ~ tilde) in bash
I have a variable in my bash script whose value is something like this:
15 Answers
15
...
'git' is not recognized as an internal or external command
...ct the paths if necessary.
Modifying PATH on Windows 10:
In the Start Menu or taskbar search, search for "environment variable".
Select "Edit the system environment variables".
Click the "Environment Variables" button at the bottom.
Double-click the "Path" entry under "System variables".
With t...
How to create PDFs in an Android app? [closed]
...m with iText is that it is a GPLv3 license, or else you must purchase a commercial license.
– Tony Maro
Apr 9 '11 at 17:54
5
...
Concatenate multiple files but include filename as section headers
... know I can do this using the cat command. However, I would like the filename of each file to precede the "data dump" for that file. Anyone know how to do this?
...
Call to undefined method mysqli_stmt::get_result
...
Please read the user notes for this method:
http://php.net/manual/en/mysqli-stmt.get-result.php
It requires the mysqlnd driver... if it isn't installed on your webspace you will have to work with BIND_RESULT & FETCH!
https://secure.php.net/manual/en/mysq...
What's wrong with cplusplus.com?
This is perhaps not a perfectly suitable forum for this question, but let me give it a shot, at the risk of being moved away.
...
What are these ^M's that keep showing up in my files in emacs?
...may have to do with textmate, but we work in a small team and are having some issues with full-file conflicts of nearly identical files in git because each line of one branch has a ^M appended to it.
...
Visual Studio Clicking Find Results Opens Code in Wrong Window
...
The same command (Window -> Reset Window Layout) exists in Visual Studio 2013 and continues to solve the problem ;).
– Gavin Hope
Sep 10 '15 at 14:32
...