大约有 47,000 项符合查询结果（耗时：0.0698秒） [XML]
do { … } while (0) — what is it good for? [duplicate]
I've been seeing that expression for over 10 years now. I've been trying to think what it's good for. Since I see it mostly in #defines, I assume it's good for inner scope variable declaration and for using breaks (instead of gotos.)
...
How to sort an array in Bash
I have an array in Bash, for example:
16 Answers
16
...
Check whether number is even or odd
How would I determine whether a given number is even or odd? I've been wanting to figure this out for a long time now and haven't gotten anywhere.
...
Relative frequencies / proportions with dplyr
Suppose I want to calculate the proportion of different values within each group. For example, using the mtcars data, how do I calculate the relative frequency of number of gears by am (automatic/manual) in one go with dplyr ?
...
Ruby: Merging variables in to a string
I'm looking for a better way to merge variables into a string, in Ruby.
7 Answers
7
...
How do I get the real .height() of a overflow: hidden or overflow: scroll div?
I have a question regarding how to get a div height. I'm aware of .height() and innerHeight() , but none of them does the job for me in this case. The thing is that in this case I have a div that is overflown width a overflow: scroll and the div has a fixed height.
...
Opacity of background-color, but not the text [duplicate]
How do I make the cross-browser (including Internet Explorer 6) transparency for the background of a div while the text remains opaque?
...
What does value & 0xff do in Java?
I have the following Java code:
4 Answers
4
...
Scrolling a flexbox with overflowing content
...
7 Answers
7
Active
...
How do I set the rounded corner radius of a color drawable using xml?
On the android website, there is a section about color drawables . Defining these drawables in xml looks like this:
3 Ans...