大约有 13,922 项符合查询结果(耗时:0.0195秒) [XML]
Node.js + Nginx - What now?
I've set up Node.js and Nginx on my server. Now I want to use it, but, before I start there are 2 questions:
12 Answers
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How do I install Python OpenCV through Conda?
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Fast Bitmap Blur For Android SDK
...ly in an Android application that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image.
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Repeat String - Javascript
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I try not to extend native objects, but otherwise this is a beautiful solution. Thanks!
– brad
Oct 14 '08 at 20:22
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Remove non-utf8 characters from string
... from string, which are not displaying properly. Characters are like this 0x97 0x61 0x6C 0x6F (hex representation)
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How is Math.Pow() implemented in .NET Framework?
..._Dbl_RetDbl, COMDouble::AbsDbl, CORINFO_INTRINSIC_Abs)
FCFuncElement("Exp", COMDouble::Exp)
FCFuncElement("Pow", COMDouble::Pow)
// etc..
FCFuncEnd()
Searching for "COMDouble" takes you to clr/src/classlibnative/float/comfloat.cpp. I'll spare you the code, just have a look for yourself....
Why does the order of the loops affect performance when iterating over a 2D array?
Below are two programs that are almost identical except that I switched the i and j variables around. They both run in different amounts of time. Could someone explain why this happens?
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What does the unary plus operator do?
... and tend to relate to the consequences of using a value in an arithmetic expression, rather than the operator itself. For example, it can be used to force widening from smaller integral types to int, or ensure that an expression's result is treated as an rvalue and therefore not compatible with a ...
Choosing between qplot() and ggplot() in ggplot2 [closed]
...on depends on whether data is stored in data.frame or separate variables.
x<-1:10
y<-rnorm(10)
qplot(x,y, geom="line") # I will use this
ggplot(data.frame(x,y), aes(x,y)) + geom_line() # verbose
d <- data.frame(x, y)
qplot(x, y, data=d, geom="line")
ggplot(d, aes(x,y)) + geom_line() # ...
Which equals operator (== vs ===) should be used in JavaScript comparisons?
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