大约有 15,510 项符合查询结果(耗时:0.0235秒) [XML]
Example use of “continue” statement in Python?
... use a continue statement, we are essentially jumping out of a conditional testing section and allowing the iteration of the loop to proceed on to the next iteration? It isn't apparent to me how this would be better than using else. Is it just all about improved readability and run-time performance?...
Python Pandas: Get index of rows which column matches certain value
... If you only want back the index, what's the overhead of df[dftest].index? Does this create an intermediate data frame (whose data may be gibabytes). What about dftest? Doesn't this also allocate a very large intermediate object where the returned index may be very small, or even empty...
Django : How can I see a list of urlpatterns?
...
Django >= 2.0 solution
I tested the other answers in this post and they were either not working with Django 2.X, incomplete or too complex. Therefore, here is my take on this:
from django.conf import settings
from django.urls import URLPattern, URLR...
Import CSV to mysql table
What is the best/fastest way to upload a csv file into a mysql table? I would like for the first row of data be used as the column names.
...
How to recursively list all the files in a directory in C#?
...know whether *.* also includes files without file extension: Yes, it does, tested a minute ago.
– Tobias Knauss
Jun 9 '16 at 16:28
1
...
Duplicate symbols for architecture x86_64 under Xcode
...
When using unit tests, only the .m file is generated. I created a header file for it despite i guess this is not the best solution - i wanted to create a base test class.
– Bruno Muniz
Aug 23 '17 at 10:...
Haskell export current module with additional imported module
...here is a simple solution, just export the module from the module:
module Test
( module Test
, module A
) where
import Prelude()
import A
f x = x
share
|
improve this answer
...
Setting Django up to use MySQL
... which would override anything in a MySQL option file.
If you are just testing your application on your local machine, you can use
python manage.py runserver
Adding the ip:port argument allows machines other than your own to access your development application. Once you are ready to deploy yo...
How can I find out the current route in Rails?
...uri = request.env['PATH_INFO']
# If you are browsing http://example.com/my/test/path,
# then above line will yield current_uri as "/my/test/path"
To find out the route i.e. controller, action and params:
path = ActionController::Routing::Routes.recognize_path "/your/path/here/"
# ...or newer Ra...
Javascript Equivalent to C# LINQ Select
... used with the string based function constructor approach (which is the fastest), but here is another approach using an object literal as filter:
Array.prototype.where = function (filter) {
var collection = this;
switch(typeof filter) {
case 'function':
return $.gre...
