大约有 40,000 项符合查询结果（耗时：0.0407秒） [XML]
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
... unnecessary when casting upwards (towards a base class), but when casting downwards it can be used as long as it doesn't cast through virtual inheritance. It does not do checking, however, and it is undefined behavior to static_cast down a hierarchy to a type that isn't actually the type of the obj...
What is the difference between Cloud, Grid and Cluster? [closed]
... some resources such as storage. If one of the computers in a cluster goes down the service fails over to the other node and almost seamlessly starts running there. Active-Passive is similar, but only one machine runs these services and only takes over once there's a failure.
...
Download the Android SDK components for offline install
... find all the list of xml files where packages are available
Fetching https://dl-ssl.google.com/android/repository/addons_list-2.xml
Fetched Add-ons List successfully
Fetching URL: https://dl-ssl.google.com/android/repository/repository-7.xml
Validate XML: https://dl-ssl.google.com/androi...
Image width/height as an attribute or in CSS? [duplicate]
...cause you are going to click on a link and all of a sudden the page shifts down and you've accidentally clicked the wrong link.
share
|
improve this answer
|
follow
...
Executing periodic actions in Python [duplicate]
... instantiation each period, uses generator for times, rock solid on timing down to precision of the time module (unlike several of the solutions I've tried from stack exchange).
Note: for Python 2.x, replace next(g) below with g.next().
import time
def do_every(period,f,*args):
def g_tick():
...
PHP and MySQL - how to avoid password in source code? [duplicate]
...o truly avoid global state you should be injecting them from the top scope down, rendering the constants pointless and variables are (again, IMO) syntactically nicer for config files.
– DaveRandom
Feb 26 '13 at 12:46
...
HTTPS setup in Amazon EC2
How do we enable HTTPS in Amazon EC2? Our site is working on HTTP.
8 Answers
8
...
How to install both Python 2.x and Python 3.x in Windows
...
What I did was download both 2.7.6 and 3.3.4. Python 3.3.4 has the option to add the path to it in the environment variable so that was done. So basically I just manually added Python 2.7.6.
How to...
Start > in the search type in env...
What is the reason not to use select *?
... every column in the table, more could be added
later which will be pulled down every time you run the query and
could hurt performance. It hurts performance because
You are pulling more data over the wire; and
Because you might defeat the optimizer's ability to pull the data right out of the in...
Interface defining a constructor signature?
...n abstract base class in tandem with your existing Interface and maybe cut down on the amount of refactoring needed in the future for similar situations. This concept has already been hinted at in some of the comments but I thought it would be worth showing how to actually do it.
So you have your ...