大约有 47,000 项符合查询结果(耗时:0.0481秒) [XML]
Linq with group by having count
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from c in db.Company
group c by c.Name into grp
where grp.Count() > 1
select grp.Key
Or, using the method syntax:
Company
.GroupBy(c => c.Name)
.Where(grp => grp.Count() > 1)
.Select(grp => grp.Key);
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How to tell Xcode where my info.plist and .pch files are
...g to add my discoveries here as it is slightly different for Xcode 4.2:
Select your project
In the left side of the middle pane, select your app under "Targets"
Select the tab "Build Settings"
Search the following keywords: "info.plist" and "pch"
At this point it should be pretty clear which are ...
How do I convert a column of text URLs into active hyperlinks in Excel?
...y name itself HyperAdd.
Sub HyperAdd()
'Converts each text hyperlink selected into a working hyperlink
For Each xCell In Selection
ActiveSheet.Hyperlinks.Add Anchor:=xCell, Address:=xCell.Formula
Next xCell
End Sub
When you're finished pasting your macro, click Close and Re...
How do I do word Stemming or Lemmatization?
...that you have now downloaded the corpus, it works like this:
>>> from nltk.stem.wordnet import WordNetLemmatizer
>>> lmtzr = WordNetLemmatizer()
>>> lmtzr.lemmatize('cars')
'car'
>>> lmtzr.lemmatize('feet')
'foot'
>>> lmtzr.lemmatize('people')
'people'
&...
JavaScript: Create and save file [duplicate]
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@user1756980 - Yes. You would need to "Save To File" from that new tab.
– Jesse Chisholm
Jul 22 '14 at 17:44
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Android SDK installation doesn't find JDK
...al times, but it's still not working. Neither does running SDK Manager.exe from the archive and I am positive I have JDK 7 installed (even ran the installer again and it told me it's already installed).
– f.ardelian
Mar 25 '12 at 13:14
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Search and replace in bash using regular expressions
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Thanks so much! Out of curiosity, why did you switch from a one line version (in your original answer) to a two-liner?
– Lanaru
Oct 24 '12 at 5:30
9
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Convert varchar to uniqueidentifier in SQL Server
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DECLARE @uuid VARCHAR(50)
SET @uuid = 'a89b1acd95016ae6b9c8aabb07da2010'
SELECT CAST(
SUBSTRING(@uuid, 1, 8) + '-' + SUBSTRING(@uuid, 9, 4) + '-' + SUBSTRING(@uuid, 13, 4) + '-' +
SUBSTRING(@uuid, 17, 4) + '-' + SUBSTRING(@uuid, 21, 12)
AS UNIQUEIDENTIFIER)
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How can I truncate a datetime in SQL Server?
...umbled on this when I tried to truncate a date to the first of the month: SELECT DATEADD( m, 0, DATEDIFF( m, 0, GETDATE( ) ) ) does not work, but SELECT DATEADD( m, DATEDIFF( m, 0, GETDATE( ) ), 0 ) does. At least, this is what I see in 2008R2.
– Kelly Cline
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What is the Swift equivalent of respondsToSelector?
...ing it on your own Swift class, you will need to ensure your class derives from NSObject.
Here's an example of a Swift class that you can check if it responds to a selector:
class Worker : NSObject
{
func work() { }
func eat(food: AnyObject) { }
func sleep(hours: Int, minutes: Int) { }...