大约有 15,000 项符合查询结果（耗时：0.0349秒） [XML]
Android: Background Image Size (in Pixel) which Support All Devices
...ing an Application which will run on all Android Devices. I want to create xhdpi Graphics for My App. My App is full screen. I am confused in Creating graphics. can any one tell me the best sizes of my background image in pixels.
...
How do I create a Bash alias?
I'm on OSX and I need to put something like this, alias blah="/usr/bin/blah" in a config file but I don't know where the config file is.
...
About .bash_profile, .bashrc, and where should alias be written in? [duplicate]
...
Very nice explanation. Just wonder what it means exactly "bash loads your .bashrc when it starts". Do you mean when the machine starts or when the terminal start?
– Andrea Moro
Nov 3 '14 at 10:40
...
How do I use the conditional operator (? :) in Ruby?
...rator, and it works like in C (the parenthesis are not required). It's an expression that works like:
if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this
However, in Ruby, if is also an expression so: if a then b else c end === a ? b : c, except for precedence issues. Both are exp...
dyld: Library not loaded: /usr/local/lib/libpng16.16.dylib with anything php related
... I had the same issue with a different program (grace) and this fixed it.
– mstringer
Apr 9 '14 at 22:43
1
...
Alternatives to gprof [closed]
...ription you can make) is simply estimated by the fraction of samples that exhibit it.
– Mike Dunlavey
Dec 20 '09 at 13:50
1
...
How do I check if an index exists on a table field in MySQL?
...
Use SHOW INDEX like so:
SHOW INDEX FROM [tablename]
Docs: https://dev.mysql.com/doc/refman/5.0/en/show-index.html
share
|
improve thi...
Effect of a Bitwise Operator on a Boolean in Java
... If the above is true, why is ideone.com/oGSF7c throwing a null pointer exception? If the |= operator was logical, the program should never have run the x.getValue() directive.
– ikromm
Feb 5 '15 at 12:34
...
How to delete from multiple tables in MySQL?
...letes, yet with referential integrity, there are other ways of doing with EXISTS, NOT EXISTS, IN, NOT IN and etc. But the one above where you specify from which tables to delete with an alias before the FROM clause can get you out of a few pretty tight spots more easily. I tend to reach out to an ...
Why must a nonlinear activation function be used in a backpropagation neural network? [closed]
...target variable, class label, or score) that varies non-linearly with its explanatory variables
non-linear means that the output cannot be reproduced from a linear combination of the inputs (which is not the same as output that renders to a straight line--the word for this is affine).
another way ...