大约有 47,000 项符合查询结果（耗时：0.0754秒） [XML]
RESTful way to create multiple items in one request
..., either in read-only or editable fashion. For instance, a user is able to select and POST multiple images to a gallery using a form comprising only a single file input. If the POST request succeeds in its entirety the user is presented with a set of forms for each image resource representation crea...
Remove columns from DataTable in C#
...
Aside from limiting the columns selected to reduce bandwidth and memory:
DataTable t;
t.Columns.Remove("columnName");
t.Columns.RemoveAt(columnIndex);
share
|
...
Catch multiple exceptions in one line (except block)
...e variable if you have long exception handling or your IDE only highlights selections larger than that, as mine does.) The instance has an args attribute. Here is an example:
import sys
try:
mainstuff()
except (KeyboardInterrupt, EOFError) as err:
print(err)
print(err.args)
sys.ex...
Calculate text width with JavaScript
...er, div in this case, does not have any other styles applied to it via css selection rules that you may not be cognizant of at the time. Strip all relevant styles from the container before applying the ones you care about before measuring.
– Jason Bunting
Sep 2...
Pass complex parameters to [Theory]
...ssing a custom type as the Theory input which seems to be missing from the selected answer.
– J.D. Cain
Aug 28 '19 at 11:32
1
...
What is a clean, pythonic way to have multiple constructors in Python?
...sing __new__.
This could be used if the type of initialization cannot be selected based on the type of the constructor argument, and the constructors do not share code.
Example:
class MyClass(set):
def __init__(self, filename):
self._value = load_from_file(filename)
@classmeth...
git add . vs git commit -a
...ically invokes git add on all files it knows about. You can use git add to select what files to commit. Consult the docs for more info: here
share
|
improve this answer
|
fol...
Nullable Foreign Key bad practice?
...
Using NULL would be a good way to clean up incomplete orders:
SELECT * FROM `orders`
WHERE `started_time` < (UNIX_TIMESTAMP() + 900) AND `customer_id` IS NULL
The above would show orders older than 15 minutes without a related customer ID.
...
Renaming a virtualenv folder without breaking it
...ate_this.py instead of using the
location of the Python interpreter to
select the environment.
Note: you must run this after you've
installed any packages into the
environment. If you make an
environment relocatable, then install
a new package, you must run virtualenv
--relocatabl...
Wolfram's Rule 34 in XKCD [closed]
...ur of rule 34: http://atlas.wolfram.com/01/01/34/
Hilighted rules (Wolfram selection): http://atlas.wolfram.com/01/01/
Index of all 256 rules: http://atlas.wolfram.com/01/01/rulelist.html
The book contains thousands of nice little diagrams.
...