大约有 47,000 项符合查询结果（耗时：0.0651秒） [XML]
Turning a Comma Separated string into individual rows
...8, '17,19'
INSERT Testdata SELECT 3, 7, '13,19,20'
INSERT Testdata SELECT 4, 6, ''
INSERT Testdata SELECT 9, 11, '1,2,3,4'
The query
;WITH tmp(SomeID, OtherID, DataItem, String) AS
(
SELECT
SomeID,
OtherID,
LEFT(String, CHARINDEX(',', String + ',') - 1),
ST...
Java Name Hiding: The Hard Way
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84
You can cast a null to the type and then invoke the method on that (which will work, since the t...
ADB Shell Input Events
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433
By adb shell input keyevent, either an event_code or a string will be sent to the device.
usa...
Why can't I push to this bare repository?
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484
Yes, the problem is that there are no commits in "bare". This is a problem with the first com...
JavaScript loop through json array?
...e"
},
{
"id" : "2",
"msg" : "there",
"tid" : "2013-05-05 23:45",
"fromWho": "hello2@email.se"
}];
You can loop over the Array like this:
for(var i = 0; i < json.length; i++) {
var obj = json[i];
console.log(obj.id);
}
Or like this (suggested from Eric) be carefu...
Immutable vs Mutable types
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Forethinker
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answered Nov 9 '11 at 1:50
morningstarmorningstar
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How does tuple comparison work in Python?
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4 Answers
4
Active
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Finding the average of a list
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On Python 3.4+ you can use statistics.mean()
l = [15, 18, 2, 36, 12, 78, 5, 6, 9]
import statistics
statistics.mean(l) # 20.11111111111111
On older versions of Python you can do
sum(l) / len(l)
On Python 2 you need to convert len...
Better way to check if a Path is a File or a Directory?
...s a directory");
else
MessageBox.Show("Its a file");
Update for .NET 4.0+
Per the comments below, if you are on .NET 4.0 or later (and maximum performance is not critical) you can write the code in a cleaner way:
// get the file attributes for file or directory
FileAttributes attr = File.Get...
How to add System.Windows.Interactivity to project?
...
H.B.H.B.
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2
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