大约有 40,000 项符合查询结果（耗时：0.0398秒） [XML]
How to vertically align an image inside a div
...
The only (and the best cross-browser) way as I know is to use an inline-block helper with height: 100% and vertical-align: middle on both elements.
So there is a solution: http://jsfiddle.net/kizu/4RPFa/4570/
.frame {
height: 25px; /* Equals maximum image ...
Is there a way to make npm install (the command) to work behind proxy?
Read about a proxy variable in a .npmrc file but it does not work. Trying to avoid manually downloading all require packages and installing.
...
Why are there no ++ and -- operators in Python?
...
It's not because it doesn't make sense; it makes perfect sense to define "x++" as "x += 1, evaluating to the previous binding of x".
If you want to know the original reason, you'll have to either wade through old Python mailing lists or ask somebody who ...
jquery if div id has children
...fav').children().length > 0 ) {
// do something
}
This should work. The children() function returns a JQuery object that contains the children. So you just need to check the size and see if it has at least one child.
...
Profiling Vim startup time
... collected plugins over the years. I’m a bit fed up with how long Vim takes to start now, so I’d like to profile its startup and see which of the many plugins I have are responsible.
...
Getting the last argument passed to a shell script
...
This is a bit of a hack:
for last; do true; done
echo $last
This one is also pretty portable (again, should work with bash, ksh and sh) and it doesn't shift the arguments, which could be nice.
It uses the fact that for implicitly loops over th...
How can I use numpy.correlate to do autocorrelation?
...convolve gives more detail on the modes.
For your second question, I think numpy.correlate is giving you the autocorrelation, it is just giving you a little more as well. The autocorrelation is used to find how similar a signal, or function, is to itself at a certain time difference. At a time dif...
Integer division with remainder in JavaScript?
...
bluish
22k2222 gold badges107107 silver badges163163 bronze badges
answered Nov 19 '10 at 18:55
Mark ElliotMar...
The way to check a HDFS directory's size?
I know du -sh in common Linux filesystems. But how to do that with HDFS?
10 Answers
...
Tricky Google interview question
... mine is interviewing for a job. One of the interview questions got me thinking, just wanted some feedback.
21 Answers
...