大约有 36,010 项符合查询结果(耗时:0.0344秒) [XML]
How to access the ith column of a NumPy multidimensional array?
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And if you want to access more than one column at a time you could do:
>>> test = np.arange(9).reshape((3,3))
>>> test
array([[0, 1, 2],
[3, 4, 5],
[6, 7, 8]])
>>> test[:,[0,2]]
array([[0, 2],
[3, 5],
[6, 8]])
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Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...brary is a chunk of code that you can call from your own code, to help you do things more quickly/easily. For example, a Bitmap Processing library will provide facilities for loading and manipulating bitmap images, saving you having to write all that code for yourself. Typically a library will only ...
Does Java have a path joining method? [duplicate]
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Doesn`t work in Java 8. Better option: import java.nio.file.Paths; Path path = Paths.get(mydir, "myfile");
– Marc Wittmann
May 7 '15 at 10:58
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Remove characters after specific character in string, then remove substring?
...ing manipulation, if you just want to kill everything after the ?, you can do this
string input = "http://www.somesite.com/somepage.aspx?whatever";
int index = input.IndexOf("?");
if (index > 0)
input = input.Substring(0, index);
Edit: If everything after the last slash, do something like ...
Call a “local” function within module.exports from another function in module.exports?
How do you call a function from within another function in a module.exports declaration?
8 Answers
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Random number generator only generating one random number
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Every time you do new Random() it is initialized using the clock. This means that in a tight loop you get the same value lots of times. You should keep a single Random instance and keep using Next on the same instance.
//Function to get a ...
What is the { get; set; } syntax in C#?
I am learning ASP.NET MVC and I can read English documents, but I don't really understand what is happening in this code:
1...
Set size on background image with CSS?
...elf like you seems to want)...
CSS3 unleash the powers
This is possible to do in CSS3 with background-size.
All modern browsers support this, so unless you need to support old browsers, this is the way to do it.
Supported browsers:
Mozilla Firefox 4.0+ (Gecko 2.0+), Microsoft Internet Explorer 9.0+...
Swift double to string
Before I updated xCode 6, I had no problems casting a double to a string but now it gives me an error
14 Answers
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HTML5 Canvas Resize (Downscale) Image High Quality?
...I found this: Disable Interpolation when Scaling a <canvas> but it does not help to increase the quality.
14 Answer...
