大约有 16,000 项符合查询结果（耗时：0.0306秒） [XML]
Most lightweight way to create a random string and a random hexadecimal number
... Nice. Just generate a random number 30 hex digits long and print it out. Obvious when pointed out. Nice one.
– eemz
May 6 '10 at 17:50
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Detect Retina Display
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@sickp's answer is correct. Just to make things easier, add this line into your Shared.pch file:
#define IS_RETINA ([[UIScreen mainScreen] respondsToSelector:@selector(displayLinkWithTarget:selector:)] && ([UIScreen mainScreen].scale >= 2.0))
Then in any file you can just do:
if(...
python plot normal distribution
...red Dec 11 '17 at 23:18
João QuintasJoão Quintas
42111 gold badge55 silver badges99 bronze badges
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Error inflating when extending a class
... public GhostSurfaceCameraView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
init();
}
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Split string with dot as delimiter
...e returning the actual file name. Instead I think it's better if you use:
int idx = filename.lastIndexOf('.');
return filename.subString(0, idx);
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The 3 different equals
...b Identical TRUE if $a is equal to $b, and they are of the same type. (introduced in PHP 4)
For more info on the need for == and ===, and situations to use each, look at the docs.
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Update relationships when saving changes of EF4 POCO objects
...r the updated object including the collections I need to update.
Query and convert .ToList() the entities I want my collection to include.
Update the main object's collection(s) to the List I got from step 3.
SaveChanges();
In the following example "dataobj" and "_categories" are the parameters re...
Getting file names without extensions
...st<string> returnValue = new List<string>();
for (int i = 0; i < fi.Length; i++)
{
returnValue.Add(Path.GetFileNameWithoutExtension(fi[i].FullName));
}
return returnValue.ToArray<string>();
}
}
}
E...
How to use putExtra() and getExtra() for string data
...omeone please tell me how exactly to use getExtra() and putExtra() for intents? Actually I have a string variable, say str, which stores some string data. Now, I want to send this data from one activity to another activity.
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Multiple INSERT statements vs. single INSERT with multiple VALUES
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I ran into a similar situation trying to convert a table with several 100k rows with a C++ program (MFC/ODBC).
Since this operation took a very long time, I figured bundling multiple inserts into one (up to 1000 due to MSSQL limitations). My guess that a lot of sin...