大约有 35,100 项符合查询结果（耗时：0.0415秒） [XML]
Unusual shape of a textarea?
Usually textareas are rectangular or square, like this:
10 Answers
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Why is “if not someobj:” better than “if someobj == None:” in Python?
I've seen several examples of code like this:
9 Answers
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Fetch the row which has the Max value for a column
...y_date
from users
)
where my_date = max_my_date
"Analytic functions rock"
Edit: With regard to the first comment ...
"using analytic queries and a self-join defeats the purpose of analytic queries"
There is no self-join in this code. There is instead a predicate placed on the result of the in...
How to write an async method with out parameter?
I want to write an async method with an out parameter, like this:
11 Answers
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The simplest way to comma-delimit a list?
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Basil Bourque
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answered Mar 21 '09 at 11:44
toolkittoolkit...
PHP script - detect whether running under linux or Windows?
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Check the value of the PHP_OS constantDocs.
It will give you various values on Windows like WIN32, WINNT or Windows.
See as well: Possible Values For: PHP_OS and php_unameDocs:
if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {...
Unable to resolve host “”; No address associated with hostname [closed]
In my Android application for reading RSS links, I am getting this error:
17 Answers
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JSLint says “missing radix parameter”
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JayendraJayendra
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Heroku push rejected, no Cedar-supported app detected
...lar problem, but with Django (incorrectly named "requirements.txt"). I think to generalize the other answers here, when you get this error it's because Heroku is missing some key file that it uses to identify your app (and its type).
php: index.php
python: requirements.txt
ruby: Gemfile # note th...
Recursively list all files in a directory including files in symlink directories
Suppose I have a directory /dir inside which there are 3 symlinks to other directories
/dir/dir11 , /dir/dir12 , and /dir/dir13 . I want to list all the files in dir including the ones in dir11 , dir12 and dir13 .
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