大约有 7,000 项符合查询结果(耗时:0.0316秒) [XML]

https://stackoverflow.com/ques... 

Associative arrays in Shell scripts

... To add to Irfan's answer, here is a shorter and faster version of get() since it requires no iteration over the map contents: get() { mapName=$1; key=$2 map=${!mapName} value="$(echo $map |sed -e "s/.*--${key}=\([^ ]*\).*/\1/" -e 's/:SP:/ /g' )" } ...
https://stackoverflow.com/ques... 

Subtract 7 days from current date

... for example if the daylight savings changes during the seven days in question. – JeremyP Apr 18 '12 at 13:08 1 ...
https://stackoverflow.com/ques... 

What are the differences between a UIView and a CALayer?

...oth have most of the same attributes, both support different kind of animations, both represent different data. What are the differences between a UIView and a CALayer? ...
https://stackoverflow.com/ques... 

Does Dispose still get called when exception is thrown inside of a using statement?

In the example below, is the connection going to close and disposed when an exception is thrown if it is within a using statement? ...
https://stackoverflow.com/ques... 

an htop-like tool to display disk activity in linux [closed]

I am looking for a Linux command-line tool that would report the disk IO activity. Something similar to htop would be really cool. Has someone heard of something like that? ...
https://stackoverflow.com/ques... 

Virtual functions and performance - C++

In my class design, I use abstract classes and virtual functions extensively. I had a feeling that virtual functions affects the performance. Is this true? But I think this performance difference is not noticeable and looks like I am doing premature optimization. Right? ...
https://stackoverflow.com/ques... 

Read logcat programmatically within application

I want to read and react to logcat logs within my application. 6 Answers 6 ...
https://stackoverflow.com/ques... 

How do I vertically center UITextField Text?

...s has potentially got several complicating factors, some alluded to in previous answers: What you're trying to align (just numbers, just letters, just uppercase letters or a mix) Placeholders Clear button What you're trying to align is important because of which point in the font should be verti...
https://stackoverflow.com/ques... 

Eclipse Android and gitignore

What files/folders can I safely ignore for inclusion with git? 6 Answers 6 ...
https://stackoverflow.com/ques... 

What are the differences between the threading and multiprocessing modules?

...hreading and the multiprocessing modules in Python to run certain operations in parallel and speed up my code. 6 Answers...