大约有 4,761 项符合查询结果（耗时：0.0205秒） [XML]
How can I convert an RGB image into grayscale in Python?
I'm trying to use matplotlib to read in an RGB image and convert it to grayscale.
12 Answers
...
How do I pass multiple parameters into a function in PowerShell?
...all the data assigned to it, and remaining parameters are passed in as empty.
15 Answers
...
Why avoid increment (“++”) and decrement (“--”) operators in JavaScript?
...
My view is to always use ++ and -- by themselves on a single line, as in:
i++;
array[i] = foo;
instead of
array[++i] = foo;
Anything beyond that can be confusing to some programmers and is just not worth it in my view. ...
LINQ Distinct operator, ignore case?
...
StringComparer does what you need:
List<string> list = new List<string>() {
"One", "Two", "Three", "three", "Four", "Five" };
var distinctList = list.Distinct(
StringComparer.CurrentCultureIgnoreCase).ToList();
(or invariant /...
Fancybox doesn't work with jQuery v1.9.0 [ f.browser is undefined / Cannot read property 'msie' ]
Fancybox breaks with the new jQuery v1.9.0.
4 Answers
4
...
Get type name without full namespace
...
typeof(T).Name // class name, no namespace
typeof(T).FullName // namespace and class name
typeof(T).Namespace // namespace, no class name
share
...
Python and pip, list all versions of a package that's available?
Given the name of a Python package that can be installed with pip , is there any way to find out a list of all the possible versions of it that pip could install? Right now it's trial and error.
...
Why an interface can not implement another interface?
...ide interface not for implementation.
A 100% abstract class is functionally equivalent to an interface but it can also have implementation if you wish (in this case it won't remain 100% abstract), so from the JVM's perspective they are different things.
Also the member variable in a 100% abstract ...
Why do objects of the same class have access to each other's private data?
Why do objects of the same class have access to each other's private data?
7 Answers
7...
Should I implement __ne__ in terms of __eq__ in Python?
...
Yes, that's perfectly fine. In fact, the documentation urges you to define __ne__ when you define __eq__:
There are no implied relationships
among the comparison operators. The
truth of x==y does not imply that x!=y
...