大约有 47,000 项符合查询结果（耗时：0.0613秒） [XML]
In Python, using argparse, allow only positive integers
... case, you can also use the choices parameter if your upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range instead of xrange for python 3.x
share
|
...
MySQL and GROUP_CONCAT() maximum length
...lize method but as keatkeat has stated, this is only temporary. If anyone knows the right way to make this change permanently pls let me know
– IcedDante
Nov 18 '14 at 22:42
a...
How to jump back to NERDTree from file in tab?
...st, and NERDTree on <F2>, <F3>, and <F4>, respectively. Now it's easy to get around my projects. That works really poorly with MiniBufExplorer though, so if you use that you may have some issues.
– jorelli
Jan 11 '11 at 17:33
...
Why am I getting error for apple-touch-icon-precomposed.png
... I found a nice article that details everything I wanted to know (and more): mathiasbynens.be/notes/touch-icons
– Alexis
May 22 '13 at 15:02
...
Why does 'git commit' not save my changes?
...detail about the concept of staging/adding files.
One other thing worth knowing about is interactive staging - this allows you to add parts of a file to the staging area, so if you've made three distinct code changes (for related but different functionality), you can use interactive mode to split ...
Could I change my name and surname in all previous commits?
... it to history that has not yet been shared.
June 2018 Update
The manual now includes a solution, using --env-filter, in its examples: https://git-scm.com/docs/git-filter-branch#_examples :
git filter-branch --env-filter '
if test "$GIT_AUTHOR_EMAIL" = "root@localhost"
then
GIT_...
quick random row selection in Postgres
...e optimal solution if you want only one row selected, because you need to know the COUNT of the table to calculate the exact percentage.
To avoid a slow COUNT and use fast TABLESAMPLE for tables from 1 row to billions of rows, you can do:
SELECT * FROM my_table TABLESAMPLE SYSTEM(0.000001) LIMI...
Make browser window blink in task Bar
...to see if the user has any new messages on the server, I want the user to know it right away, even if he is using another application at the time.
...
How to access the ith column of a NumPy multidimensional array?
...,
[3, 4],
[5, 6]])
As you already know from other answers, to get it in the form of "row vector" (array of shape (3,)), you use slicing:
arr_c1_ref = arr[:, 1] # creates a reference to the 1st column of the arr
arr_c1_copy = arr[:, 1].copy() # creates a cop...
'heroku' does not appear to be a git repository
...YourAppName
Lastly add git remote:
$ heroku git:remote -a YourAppName
Now you can safely deploy your app with:
$ git push heroku master
You should wait for some time and see if you don't get any error/interrupt on console while deploying. For details look at heroku article.
...