大约有 1,643 项符合查询结果（耗时：0.0265秒） [XML]
Storing R.drawable IDs in XML array
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kotlin way could be this:
fun Int.resDrawableArray(context: Context, index: Int, block: (drawableResId: Int) -> Unit) {
val array = context.resources.obtainTypedArray(this)
block(array.getResourceId(index, -1))
array.recycle()
}
R.array.rand...
Python's equivalent of && (logical-and) in an if-statement
...lt, then the second operator isn't evaluated at all.
To show this I use a function that simply takes a value, prints it and returns it again. This is handy to see what is actually
evaluated because of the print statements:
>>> def print_and_return(value):
... print(value)
... retu...
How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g
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Fun fact : complex(1,0) > 'abc' is False but complex(1,0) > complex(0,0) raises a TypeError
– Eric Duminil
Jan 22 '17 at 18:48
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Is “argv[0] = name-of-executable” an accepted standard or just a common convention?
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Guesswork (even educated guesswork) is fun but you really need to go to the standards documents to be sure. For example, ISO C11 states (my emphasis):
If the value of argc is greater than zero, the string pointed to by argv[0] represents the program name; argv...
Can the :not() pseudo-class have multiple arguments?
...box"] {
/* styles that reset previous styles */
}
It's not nearly as fun, but it worked for me when :not() was being pugnacious. It's not ideal, but it's solid.
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How to hide output of subprocess in Python 2.7
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Here's a more portable version (just for fun, it is not necessary in your case):
#!/usr/bin/env python
# -*- coding: utf-8 -*-
from subprocess import Popen, PIPE, STDOUT
try:
from subprocess import DEVNULL # py3k
except ImportError:
import os
DEVNULL =...
Protecting Java Source Code From Being Accessed [closed]
...ou're seeking. (I included the others first b/c they're easy, they're more fun and will probably work.)
This Wikipedia article might help your instructor understand your evidence and the external links section has many providers, including free ones. I'd run test files through free ones for a few da...
Accessing an array out of bounds gives no error, why?
...(although it does not forbid it either). A vector also has the at() member function which is guaranteed to perform bounds-checking. So in C++, you get the best of both worlds if you use a vector. You get array-like performance without bounds-checking, and you get the ability to use bounds-checked ac...
How do I represent a hextile/hex grid in memory?
...e a Board with constant time random access to vertices and edges. It was a fun problem, but the board took a lot of time, so in case anyone is still looking for a simple implementation here is our Python code:
class Board:
# Layout is just a double list of Tiles, some will be None
def __init__(...
How can I select every other line with multiple cursors in Sublime Text?
... Thank you very much! I'm fairly new to the plugins. Should be fun. Begin able to select every other line would be just fantastic. Cheers!
– user2136580
Mar 24 '13 at 17:48
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