大约有 15,000 项符合查询结果（耗时：0.0384秒） [XML]
How do I change the working directory in Python?
...t if you make your python program an executable and run it in cron it will start up in your home directory. So it is best to use a fully-qualified path. This definitely works, yet I still use fully-qualified paths in any script I might invoke from Python because there is no guarantee that this wil...
How to share Eclipse configuration over different workspaces
...
I'll start with this, but sadly there are many more settings outside of this directory that I'd like to synchronize.
– David Harkness
Oct 29 '12 at 16:34
...
Android - How To Override the “Back” button so it doesn't Finish() my Activity?
...f you plan on having a service run in the background, make sure to look at startForeground() and make sure to have an ongoing notification or else Android will kill your service if it needs to free memory.
@Override
public void onBackPressed() {
Log.d("CDA", "onBackPressed Called");
Intent se...
Terminal Multiplexer for Microsoft Windows - Installers for GNU Screen or tmux [closed]
... For a nice introduction to Tmux: http://www.sitepoint.com/tmux-a-simple-start/ When they say CTRL + B % just type at the same CTRL + B, then press Shift + 5 (which is the key in my keyboard that has the % symbol).
– Edenshaw
Apr 7 '16 at 15:25
...
Call asynchronous method in constructor?
...e the data is downloading. Have the page constructor set up that view, and start the download. When the download completes update the page to display the data.
I have a blog post on asynchronous constructors that you may find useful. Also, some MSDN articles; one on asynchronous data-binding (if yo...
How do you use script variables in psql?
...iable '\'somestring\''
SELECT * FROM foo WHERE bar = :myvariable
EDIT: starting with PostgreSQL 9.1, you may write instead:
\set myvariable somestring
SELECT * FROM foo WHERE bar = :'myvariable'
share
|
...
How to run Unix shell script from Java code?
...get("VAR1") + "suffix");
pb.directory(new File("myDir"));
Process p = pb.start();
share
|
improve this answer
|
follow
|
...
How to generate all permutations of a list?
...
Starting with Python 2.6 (and if you're on Python 3) you have a standard-library tool for this: itertools.permutations.
import itertools
list(itertools.permutations([1, 2, 3]))
If you're using an older Python (<2.6) f...
How to version control a record in a database
...in the history. If you always need the history then you can put effective start and end dates and keep all the records in FOO itself. Every query then needs to check those dates.
share
|
improve t...
How can I open a URL in Android's web browser from my application?
...tent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://www.google.com"));
startActivity(browserIntent);
That works fine for me.
As for the missing "http://" I'd just do something like this:
if (!url.startsWith("http://") && !url.startsWith("https://"))
url = "http://" + url;
I woul...