大约有 47,000 项符合查询结果（耗时：0.0572秒） [XML]
.prop('checked',false) or .removeAttr('checked')?
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John FlatnessJohn Flatness
28k55 gold badges6969 silver badges7474 bronze badges
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How to handle more than 10 parameters in shell
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165
Use curly braces to set them off:
echo "${10}"
You can also iterate over the positional param...
Postgresql aggregate array
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Use array_agg: http://www.sqlfiddle.com/#!1/5099e/1
SELECT s.name, array_agg(g.Mark) as marks
FROM student s
LEFT JOIN Grade g ON g.Student_id = s.Id
GROUP BY s.Id
By the way, if you are using Postgres 9.1, you don't need to repeat the columns on SELECT to ...
What is causing this ActiveRecord::ReadOnlyRecord error?
...2.3.3 and lower
From the ActiveRecord CHANGELOG(v1.12.0, October 16th, 2005):
Introduce read-only records. If you call object.readonly! then it will
mark the object as read-only and raise
ReadOnlyRecord if you call
object.save. object.readonly? reports
whether the object is read-only....
jQuery: Difference between position() and offset()
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Bob Stein
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answered Jul 8 '10 at 9:04
David HedlundDavid Hedlund
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What's a quick way to test to see a file exists?
... reinrein
30.8k2323 gold badges7676 silver badges105105 bronze badges
2
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Bulk package updates using Conda
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355
You want conda update --all.
conda search --outdated will show outdated packages, and conda up...
Set default value of an integer column SQLite
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KarakuriKarakuri
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ad...
How do I get the localhost name in PowerShell?
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Note: if your DNS name is longer than 15 characters, [System.Net.Dns]::GetHostName() (doesn't truncate) is better than $env:COMPUTERNAME (truncates)
– sonjz
Jul 19 '16 at 23:42
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Python set to list
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245
Your code does work (tested with cpython 2.4, 2.5, 2.6, 2.7, 3.1 and 3.2):
>>> a = set...