大约有 37,000 项符合查询结果(耗时:0.0518秒) [XML]
How to format a duration in java? (e.g format H:MM:SS)
...nds = Math.abs(seconds);
String positive = String.format(
"%d:%02d:%02d",
absSeconds / 3600,
(absSeconds % 3600) / 60,
absSeconds % 60);
return seconds < 0 ? "-" + positive : positive;
}
Formatting this way is reasonably simple, if annoyingly manual. For ...
Can table columns with a Foreign Key be NULL?
... INTO child (id, parent_id) VALUES (1, NULL);
-- Query OK, 1 row affected (0.01 sec)
INSERT INTO child (id, parent_id) VALUES (2, 1);
-- ERROR 1452 (23000): Cannot add or update a child row: a foreign key
-- constraint fails (`t/child`, CONSTRAINT `child_ibfk_1` FOREIGN KEY
-- (`parent_id`) REFE...
Find text string using jQuery?
... edited Oct 17 '19 at 4:38
user202729
1,42433 gold badges1010 silver badges2323 bronze badges
answered May 29 '09 at 15:34
...
How do I center align horizontal menu?
...
130
From http://pmob.co.uk/pob/centred-float.htm:
The premise is simple and basically just involves...
Regex to get string between curly braces
... |
edited Feb 26 at 10:44
answered Jan 5 '09 at 13:25
...
How do I do a bulk insert in mySQL using node.js
... |
edited Apr 27 at 19:04
Agnel Vishal
37033 silver badges1010 bronze badges
answered Jan 10 '13 at 1...
Is it possible to view RabbitMQ message contents directly from the command line?
...
107
You should enable the management plugin.
rabbitmq-plugins enable rabbitmq_management
See her...
What is the difference between typeof and instanceof and when should one be used vs. the other?
...
answered Jul 8 '11 at 14:30
Szymon WygnańskiSzymon Wygnański
8,91666 gold badges2727 silver badges4444 bronze badges
...
Create a string of variable length, filled with a repeated character
...
10 Answers
10
Active
...
Is this the right way to clean-up Fragment back stack when leaving a deeply nested stack?
...tp://groups.google.com/group/android-developers/browse_thread/thread/d2a5c203dad6ec42
Essentially you have the following options
Use a name for your initial back stack state and use
FragmentManager.popBackStack(String name,
FragmentManager.POP_BACK_STACK_INCLUSIVE).
Use FragmentManager.getBackSta...
