大约有 40,000 项符合查询结果（耗时：0.0541秒） [XML]
How to share Eclipse configuration over different workspaces
...ed from ide
– Anton S
Nov 30 '10 at 20:01
5
I'll start with this, but sadly there are many more s...
List submodules in a Git repository
...u in advance.
– Odrai
Nov 17 '17 at 20:06
9
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How to reorder data.table columns (without copying)
...lumns to the front?
– Peter Pan
Apr 20 '16 at 15:41
5
setcolorder(df, c("someCol",colnames(dt)[!(...
How do I parse an ISO 8601-formatted date?
I need to parse RFC 3339 strings like "2008-09-03T20:56:35.450686Z" into Python's datetime type.
27 Answers
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How can I deploy/push only a subdirectory of my git repo to Heroku?
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220
There's an even easier way via git-subtree. Assuming you want to push your folder 'output' as ...
How to concatenate strings with padding in sqlite
...u can follow along (basically what I proposed) here: http://verysimple.com/2010/01/12/sqlite-lpad-rpad-function/
-- the statement below is almost the same as
-- select lpad(mycolumn,'0',10) from mytable
select substr('0000000000' || mycolumn, -10, 10) from mytable
-- the statement below is almost...
convert a char* to std::string
...
20
Pass it in through the constructor:
const char* dat = "my string!";
std::string my_string( dat...
Define global variable in a JavaScript function
... properties of the window object. (In the latest specification, ECMAScript 2015, the new let, const, and class statements at global scope create globals that aren't properties of the global object; a new concept in ES2015.)
(There's also the horror of implicit globals, but don't do it on purpose an...
Check for changes to an SQL Server table?
...
answered Aug 2 '08 at 5:20
Jon GallowayJon Galloway
49k2424 gold badges118118 silver badges191191 bronze badges
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What is the optimal length for an email address in a database?
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It seems that it is the best to take 320 as the length.
– Léo Léopold Hertz 준영
Jul 29 '09 at 11:12
40
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