大约有 47,000 项符合查询结果（耗时：0.0707秒） [XML]
Python int to binary string?
...() function: format(n, 'b'). There is no need to parse out the placeholder and match it to an argument, go straight for the value formatting operation itself. Only use str.format() if you need to place the formatted result in a longer string (e.g. use it as a template).
– Marti...
Rails: call another controller action from a controller
...e
To just render the new action :
redirect_to your_controller_action_url and return
share
|
improve this answer
|
follow
|
...
dynamic_cast and static_cast in C++
...
Here's a rundown on static_cast<> and dynamic_cast<> specifically as they pertain to pointers. This is just a 101-level rundown, it does not cover all the intricacies.
static_cast< Type* >(ptr)
This takes the pointer in ptr and tries to safely ...
What is an alternative to execfile in Python 3?
...ec(open('./some_file').read()). I have tried including the '.py' extension and also excluding the './' as well
– JoeyC
Feb 20 '14 at 0:20
25
...
Convert an ISO date to the date format yyyy-mm-dd in JavaScript
... out in comments, I am updating the answer to print leading zeros for date and month if needed.
date = new Date('2013-08-03T02:00:00Z');
year = date.getFullYear();
month = date.getMonth()+1;
dt = date.getDate();
if (dt < 10) {
dt = '0' + dt;
}
if (month < 10) {
month = '0' +...
Building big, immutable objects without using constructors having long parameter lists
I have some big (more than 3 fields) objects that can and should be immutable. Every time I run into that case I tend to create constructor abominations with long parameter lists.
...
Convert pandas timezone-aware DateTimeIndex to naive timestamp, but in certain timezone
...
To answer my own question, this functionality has been added to pandas in the meantime. Starting from pandas 0.15.0, you can use tz_localize(None) to remove the timezone resulting in local time.
See the whatsnew entry: http://pandas.pydata.org/pandas-docs/stable/whatsnew.html#timezone-hand...
How to set a JVM TimeZone Properly
...ault GMT timezone instead of an OS defined timezone. My JDK version is 1.5 and the OS is Windows Server Enterprise (2007)
7...
Should try…catch go inside or outside a loop?
...w which way the performance would be affected, I guess were back to try-it-and-test (as always).
– Jeffrey L Whitledge
Sep 27 '08 at 18:35
1
...
How can I run an external command asynchronously from Python?
I need to run a shell command asynchronously from a Python script. By this I mean that I want my Python script to continue running while the external command goes off and does whatever it needs to do.
...