大约有 40,000 项符合查询结果（耗时：0.0281秒） [XML]
How to convert current date into string in java?
... and the answer right below for the timestring. C:
– php_coder_3809625
Jul 13 '16 at 13:54
@Ian Purton Is string date ...
How to concatenate columns in a Postgres SELECT?
...catenated to NULL is NULL. If NULL values can be involved and the result shall not be NULL, use concat_ws() to concatenate any number of values (Postgres 9.1 or later):
SELECT concat_ws(', ', a, b) AS ab FROM foo;
Or concat() if you don't need separators:
SELECT concat(a, b) AS ab FROM foo;
No...
What to do Regular expression pattern doesn't match anywhere in string?
...
Contrary to all the answers here, for what you're trying to do regex is a perfectly valid solution. This is because you are NOT trying to match balanced tags-- THAT would be impossible with regex! But you are only matching what's in one ...
Is GET data also encrypted in HTTPS?
...me in plaintext via the SNI extension (thanks @hafichuk), which is used by all modern mainstream browsers, though some only on newer OSes.
EDIT: (Since this just got me a "Good Answer" badge, I guess I should answer the entire question…)
The entire response is also encrypted; proxies cannot inte...
How to make a DIV not wrap?
...d maintain block characteristics.*/
vertical-align: top; /*Makes sure all the divs are correctly aligned.*/
white-space: normal; /*Prevents child elements from inheriting nowrap.*/
width: 100px;
height: 100px;
background-color: red;
margin: 5px;
}
<div class=...
Does MySQL foreign_key_checks affect the entire database?
... This means it can be set for session:
SET FOREIGN_KEY_CHECKS=0;
or globally:
SET GLOBAL FOREIGN_KEY_CHECKS=0;
share
|
improve this answer
|
follow
|
...
Limit File Search Scope in Sublime Text 2
... showing that folder/** works too. :)
– try-catch-finally
May 21 '15 at 16:56
7
This doesn't seem...
What does @@variable mean in Ruby?
...the classes; setting the value in an instance of one changes the value for all other instances of that class and even child classes, where a variable named @shared, with one @, would not be.
[Update]
As Phrogz mentions in the comments, it's a common idiom in Ruby to track class-level data with an ...
How to show multiline text in a table cell
...e CSS white-space:pre applied to the appropriate <td>. To do this to all table cells, for example:
td { white-space:pre }
Alternatively, if you can change your markup, you can use a <pre> tag around your content. By default web browsers use their user-agent stylesheet to apply the sam...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...ms instead of programming. Recently, I have been following a manual to install a software suite on Ubuntu. I have no knowledge of mySQL at all, actually. I have done the following installations on my Ubuntu.
...