大约有 44,000 项符合查询结果（耗时：0.0481秒） [XML]
CSS: How to position two elements on top of each other, without specifying a height?
...eed to position exactly on top of each other. However, when I do that, the formatting gets all screwed up because the containing DIV acts like there is no height. I think this is the expected behavior with position:absolute but I need to find a way to position these two elements on top of each oth...
Where do alpha testers download Google Play Android apps?
I have developed my app and have published it through Google Play for alpha testing. As one of the testers I get an opt-in link, where I signed in as a tester. After that I was hoping to download the app directly with my phone by going to the Play Store on my phone. But as it seems to turn out, I ha...
What is the difference between lemmatization vs stemming?
...
Short and dense: http://nlp.stanford.edu/IR-book/html/htmledition/stemming-and-lemmatization-1.html
The goal of both stemming and lemmatization is to reduce inflectional forms and sometimes derivationally related forms of a word to a common base form.
Howe...
Running a Haskell program on the Android OS
Forenote: This is an extension of the thread started on /r/haskell
6 Answers
6
...
How to assign a heredoc value to a variable in Bash?
...abc'asdf"
$(dont-execute-this)
foo"bar"''
If you want to use indentation for readability in the source code, use a dash after the less-thans. The indentation must be done using only tabs (no spaces).
$ read -r -d '' VAR <<-'EOF'
abc'asdf"
$(dont-execute-this)
foo"bar"''
EOF
...
What is an index in SQL?
...base. MySQL have some good documentation on the subject (which is relevant for other SQL servers as well):
http://dev.mysql.com/doc/refman/5.0/en/mysql-indexes.html
An index can be used to efficiently find all rows matching some column in your query and then walk through only that subset of the tab...
Determine if code is running as part of a unit test
...
I've done this before - I had to hold my nose while I did it, but I did it. Pragmatism beats dogmatism every time. Of course, if there is a nice way you can refactor to avoid it, that would be great.
Basically I had a "UnitTestDetector" clas...
Convert PDF to image with high resolution
... The density parameter is a bit special in that in must come before the input file. As PDF is a vector based file format which does not have (much) notion of pixels, it says something like "page is 8in by 12in". If you want pixel, you use the density setting to tell it, how many pixels p...
Why is it OK to return a 'vector' from a function?
...
But is the efficient or have any performance concerns say for vector which may hold 1000 entries?
– zar
Feb 9 '15 at 20:43
...
Access denied for user 'root@localhost' (using password:NO)
...sqldt-nt I run it by mysqldt -nt Actuallythe first one is not recognizable for cmd. I'm waiting to hear from you.
– Nasser Hadjloo
Jun 8 '10 at 6:33
...