大约有 47,000 项符合查询结果（耗时：0.0978秒） [XML]
MySQL, Check if a column exists in a table with SQL
...
10 Answers
10
Active
...
How to center a (background) image within a div?
...
281
#doit {
background: url(url) no-repeat center;
}
...
How to get the first element of the List or Set? [duplicate]
...
answered Jan 16 '12 at 15:39
user684934user684934
...
Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...nce and the typical use cases here: http://fallengamer.livejournal.com/93321.html .
From that article:
--assume-unchanged assumes that a developer shouldn’t change a file. This flag is meant for improving performance for not-changing folders like SDKs.
--skip-worktree is useful when you instru...
Difference between CouchDB and Couchbase
...he Membase Server was renamed to Couchbase Server somewhere around version 1.8). See Couchbase 2011 Year in Review:
Unfortunately, we confused the heck out of many of our potential users. In addition to Membase Server and our new mobile products we also offered Couchbase Single Server which was ...
How do I get the path and name of the file that is currently executing?
...
p1.py:
execfile("p2.py")
p2.py:
import inspect, os
print (inspect.getfile(inspect.currentframe()) # script filename (usually with path)
print (os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))) # sc...
git: diff between file in local repo and origin
...
$ git fetch origin master
$ git diff origin/master -- [local-path]
Note 1: The second command above will compare against the locally stored remote tracking branch. The fetch command is required to update the remote tracking branch to be in sync with the contents of the remote server. Alternativel...
Javascript : natural sort of alphanumerical strings
...se-insensitive using sensitivity: 'base'. Tested in Chrome, Firefox, and IE11.
Here's an example. It returns 1, meaning 10 goes after 2:
'10'.localeCompare('2', undefined, {numeric: true, sensitivity: 'base'})
For performance when sorting large numbers of strings, the article says:
When com...