大约有 31,840 项符合查询结果（耗时：0.0389秒） [XML]
Remove all the elements that occur in one list from another
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One way is to use sets:
>>> set([1,2,6,8]) - set([2,3,5,8])
set([1, 6])
Note, however, that sets do not preserve the order of elements, and cause any duplicated elements to be removed. The elements also need to be h...
How to reset postgres' primary key sequence when it falls out of sync?
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@Valery: But in order to avoid gaps mentioned by @mikl two comments above, you need SELECT setval('your_table_id_seq', coalesce((select max(id)+1 from your_table), 1), false);
– Antony Hatchkins
Nov 9 '12 at 12:19
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Why have header files and .cpp files? [closed]
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C++ compilation
A compilation in C++ is done in 2 major phases:
The first is the compilation of "source" text files into binary "object" files: The CPP file is the compiled file and is compiled without any knowledge about the other CPP files (or even libraries), u...
Unix command-line JSON parser? [closed]
Can anyone recommend a Unix (choose your flavor) JSON parser that could be used to introspect values from a JSON response in a pipeline?
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Getting the last element of a split string array
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There's a one-liner for everything. :)
var output = input.split(/[, ]+/).pop();
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Understanding typedefs for function pointers in C
...d returns a SignalHandler.
It takes a bit of getting used to, though. The one thing you can't do, though is write a signal handler function using the SignalHandler typedef in the function definition.
I'm still of the old-school that prefers to invoke a function pointer as:
(*functionpointer)(arg1, ...
What is Shelving in TFS?
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Shelving has many uses. The main ones are:
Context Switching: Saving the work on your current task so you can switch to another high priority task. Say you're working on a new feature, minding your own business, when your boss runs in and says "Ahhh! Bug ...
How to generate XML file dynamically using PHP?
... It is possible to specify the encoding with SimpleXml? How it can be done?
– Eineki
Jan 28 '09 at 14:17
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How efficient can Meteor be while sharing a huge collection among many clients?
...allers register
callbacks for the same live query, the driver only watches one copy of
the query, calling each registered callback with the same result.
Each time the server updates a collection, the driver recalculates each
live query on that collection (Future versions of Meteor will expose a
sca...
What's the difference between a Python module and a Python package?
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A module is a single file (or files) that are imported under one import and used.
e.g.
import my_module
A package is a collection of modules in directories that give a package hierarchy.
from my_package.timing.danger.internets import function_of_love
Documentation for modules
I...