大约有 19,000 项符合查询结果(耗时:0.0524秒) [XML]

https://stackoverflow.com/ques... 

Regex doesn't work in String.matches()

...d suit? From what I know, only C++ has an equivalent set of methods - regex_search and regex_match. In Python, re.match only anchors the match at the start of the string (as if it were \Apattern) and Python 3.x has got a nice .fullmatch() method. In JS, Go, PHP and .NET, the there are no regex metho...
https://stackoverflow.com/ques... 

How to restore to a different database in sql server?

...F' TO 'c:\MyTempCopy.mdf', MOVE 'LogicalNameForTheLDF' TO 'c:\MyTempCopy_log.ldf' To create the database MyTempCopy with the contents of your.bak. Example (restores a backup of a db called 'creditline' to 'MyTempCopy'; RESTORE FILELISTONLY FROM DISK='e:\mssql\backup\creditline.bak' >Logic...
https://stackoverflow.com/ques... 

How to delete migration files in Rails 3

...rt DB changes due to this migration) Run "rails destroy migration migration_name" (migration_name is the one use chose while creating migration. Remove "timestamp_" from your migration file name to get it) share | ...
https://stackoverflow.com/ques... 

jQuery date formatting

...stion. It works well for me in a slightly different syntax/context: var dt_to = $.datepicker.formatDate('yy-mm-dd', new Date()); If you decide to utilize datepicker from JQuery UI, make sure you use proper references in your document's < head > section: <link rel="stylesheet" href="http...
https://stackoverflow.com/ques... 

What is causing “Unable to allocate memory for pool” in PHP?

...this problem, please specify you .ini settings. Specifically your apc.mmap_file_mask setting. For file-backed mmap, it should be set to something like: apc.mmap_file_mask=/tmp/apc.XXXXXX To mmap directly from /dev/zero, use: apc.mmap_file_mask=/dev/zero For POSIX-compliant shared-memory-back...
https://stackoverflow.com/ques... 

find() with nil when there are no records

... Yes, just do: Challenge.find_by_id(10) For Rails 4 and 5: Challenge.find_by(id: 10) share | improve this answer | follow ...
https://stackoverflow.com/ques... 

Could not load NIB in bundle

...wered Jun 17 '11 at 0:08 creator_11creator_11 70111 gold badge66 silver badges1111 bronze badges ...
https://stackoverflow.com/ques... 

Convert string with commas to array

...ols: like e.g. "0,s" any ideas how to fix that? – sqp_125 Aug 31 '17 at 12:48 1 @sqp_125 try 0,'s...
https://stackoverflow.com/ques... 

Reducing the space between sections of the UITableView

... Why not use CGFLOAT_MIN? It's made for these kind of scenarios :) – Andrei Filip May 11 '15 at 9:38 12 ...
https://stackoverflow.com/ques... 

PHP foreach change original array values

...elds as $key => $field) { if ($field['required'] && strlen($_POST[$field['name']]) <= 0) { $fields[$key]['value'] = "Some error"; } } So basically use $field when you need the values, and $fields[$key] when you need to change the data. ...