大约有 42,000 项符合查询结果（耗时：0.0284秒） [XML]
How do write IF ELSE statement in a MySQL query
...pression.
They look like this:
SELECT col1, col2, (case when (action = 2 and state = 0)
THEN
1
ELSE
0
END)
as state from tbl1;
share
|
improve this answer
|
...
Minimal web server using netcat
.../1.1 200 OK\n\n $(date)"'; done
The -cmakes netcat execute the given command in a shell, so you can use echo. If you don't need echo, use -e. For further information on this, try man nc. Note, that when using echo there is no way for your program (the date-replacement) to get the browser request. ...
How can I get the max (or min) value in a vector?
...lt; *std::min_element(mybegin(cloud), myend(cloud)) << '\n';
}
Oh, and use std::minmax_element(...) if you need both at once :/
share
|
improve this answer
|
follow
...
How to read lines of a file in Ruby
...
I believe my answer covers your new concerns about handling any type of line endings since both "\r\n" and "\r" are converted to Linux standard "\n" before parsing the lines.
To support the "\r" EOL character along with the regular "\n", and "\r\n" from Windows, here's what I...
Inserting HTML into a div
...mple, I have a case in which server technologies (php etc) are disallowed, and I want to re-use about 20 lines of html inside the same page.
– Jennifer Michelle
Jan 30 '14 at 4:47
...
Must qualify the allocation with an enclosing instance of type GeoLocation
...
Another option, and the one I prefer, would be to set the inner class to be static.
public static class ThreadTask implements Runnable { ... }
share
|
...
git reset --hard HEAD leaves untracked files behind
...'s supposed to reset to a pristine version of what you pulled, as I understand it. Unfortunately, it leaves files lying around, as a git status shows a big list of untracked files.
...
Smart way to truncate long strings
...more sophisticated solution/library for truncating strings with JavaScript and putting an ellipsis on the end, than the obvious one:
...
Remove duplicate dict in list in Python
I have a list of dicts, and I'd like to remove the dicts with identical key and value pairs.
12 Answers
...
Divide a number by 3 without using *, /, +, -, % operators
... because:
n = 4 * a + b
n / 3 = a + (a + b) / 3
So sum += a, n = a + b, and iterate
When a == 0 (n < 4), sum += floor(n / 3); i.e. 1, if n == 3, else 0
share
|
improve this answer
|...