大约有 2,500 项符合查询结果（耗时：0.0198秒） [XML]
postgresql port confusion 5433 or 5432?
...ault ports, but the Pg that shipped with Mac OS X has a different default unix socket path, so even if the server is running on the same port it won't be listening to the same unix socket.
Most Mac users work around this by just using tcp/ip with psql -h localhost. You can also specify a port if r...
When do I use the PHP constant “PHP_EOL”?
...he newline character in a cross-platform-compatible way, so it handles DOS/Unix issues.
Note that PHP_EOL represents the endline character for the current system. For instance, it will not find a Windows endline when executed on a unix-like system.
...
Pass a local file in to URL in Java
... in "URI vs URL". Anway java.net.URL.toString() produces the same thing on Unix, as it must. It only displays one "/" which is very wrong (see file URI scheme). I guess this is in Java because of reasons, better use java.net.URI. It correctly generates "file://[host]/" on a call to .toString().
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Difference between CR LF, LF and CR line break types?
...ow the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types.
9 An...
Run cURL commands from Windows console
... upvotes. This is the way to go for users comfortable with mac terminal or unix distributions.
– BigRon
Jan 30 '16 at 19:54
1
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What's up with Java's “%n” in printf?
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While \n is the correct newline character for Unix-based systems, other systems may use different characters to represent the end of a line. In particular, Windows system use \r\n, and early MacOS systems used \r.
By using %n in your format string, you tell Java to use...
Getting the path of the home directory in C#?
...TH%. Reading environment variables is actually very portable to do (across Unix and Windows), so I'm not sure why the poster wanted to not do it.
Edited to add: For crossplatform (Windows/Unix) C#, I'd read $HOME on Unix and OSX and %HOMEDRIVE%%HOMEPATH% on Windows.
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JAVA线程池管理及分布式HADOOP调度框架搭建 - 人工智能(AI) - 清泛IT社区，...
...陷就是随着开发人员的增多和业务模型的增多，单线程的编程模型也会变得复杂。比如需要对1000w数据进行分词，如果这个放到一个线程里来执行，不算计算时间消耗光是查询数据库就需要耗费不少时间。有人说，那我把1000w数...
Saving timestamp in mysql table using php
...
Hey there, use the FROM_UNIXTIME() function for this.
Like this:
INSERT INTO table_name
(id,d_id,l_id,connection,s_time,upload_items_count,download_items_count,t_time,status)
VALUES
(1,5,9,'2',FROM_UNIXTIME(1299762201428),5,10,20,'1'),
(2,5,9,'2'...
Calculate number of hours between 2 dates in PHP
...= iterator_count($periods);
echo $hours . ' hours';
//difference between Unix Epoch
$diff = $end->getTimestamp() - $start->getTimestamp();
$hours = $diff / ( 60 * 60 );
echo $hours . ' hours (60 * 60)';
//difference between days
$diff = $end->diff($start);
$hours = $diff->h + ($diff-&...