大约有 44,000 项符合查询结果（耗时：0.0340秒） [XML]
Split string based on a regular expression
...limiter specified will split this by whitespace for you. This would be the best way in this case.
>>> str1.split()
['a', 'b', 'c', 'd']
If you really wanted regex you can use this ('\s' represents whitespace and it's clearer):
>>> re.split("\s+", str1)
['a', 'b', 'c', 'd']
or...
Copy file remotely with PowerShell
...e shares to copy files between systems.
It's much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.txt -Destination \\servera\c$\programs\temp\test.txt;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is executable from any client ...
HTML5 Canvas vs. SVG vs. div
What is the best approach for creating elements on the fly and being able to move them around? For example, let's say I want to create a rectangle, circle and polygon and then select those objects and move them around.
...
Iterating through a JSON object
... There's not much iteration involved when you want to get individual items. Perhaps what you want to iterate over is json_object, not json_object[0], and then get individual items from each dict.
– Thomas Wouters
Apr 29 '10 at 0:09
...
Why does range(start, end) not include end?
...
Exclusive ranges do have some benefits:
For one thing each item in range(0,n) is a valid index for lists of length n.
Also range(0,n) has a length of n, not n+1 which an inclusive range would.
share
...
Removing duplicates in lists
... duplicates and if it does it removes them and returns a new list with the items that weren't duplicated/removed. This is what I have but to be honest I do not know what to do.
...
C# SQL Server - Passing a list to a stored procedure
...ur User Defined Table Type:
CREATE TYPE [dbo].[StringList] AS TABLE(
[Item] [NVARCHAR](MAX) NULL
);
Next you need to use it properly in your stored procedure:
CREATE PROCEDURE [dbo].[sp_UseStringList]
@list StringList READONLY
AS
BEGIN
-- Just return the items we passed in
SELECT...
Convert list to dictionary using linq and not worrying about duplicates
...g Distinct() and and no grouping is:
var _people = personList
.Select(item => new { Key = item.Key, FirstAndLastName = item.FirstAndLastName })
.Distinct()
.ToDictionary(item => item.Key, item => item.FirstFirstAndLastName, StringComparer.OrdinalIgnoreCase);
I don't know if i...
Ruby Arrays: select(), collect(), and map()
...
It looks like details is an array of hashes. So item inside of your block will be the whole hash. Therefore, to check the :qty key, you'd do something like the following:
details.select{ |item| item[:qty] != "" }
That will give you all items where the :qty key isn't an ...
Should I store entire objects, or pointers to objects in containers?
...
Why not get the best of both worlds: do a container of smart pointers (such as boost::shared_ptr or std::shared_ptr). You don't have to manage the memory, and you don't have to deal with large copy operations.
...