大约有 21,900 项符合查询结果(耗时:0.0482秒) [XML]
How to flatten only some dimensions of a numpy array
...
Take a look at numpy.reshape .
>>> arr = numpy.zeros((50,100,25))
>>> arr.shape
# (50, 100, 25)
>>> new_arr = arr.reshape(5000,25)
>>> new_arr.shape
# (5000, 25)
# One shape dimension can be -1.
# In this case, the value is inferred from
# the l...
Set transparent background of an imageview on Android
...
answered Jul 29 '11 at 12:50
HarshadHarshad
7,45833 gold badges2121 silver badges4242 bronze badges
...
How do you use NSAttributedString?
... class func textShadowColor() -> UIColor {
return UIColor(red: 50.0/255.0, green: 50.0/255.0, blue: 50.0/255.0, alpha: 0.5)
}
class func pastelBlueColor() -> UIColor {
return UIColor(red: 176.0/255.0, green: 186.0/255.0, blue: 255.0/255.0, alpha: 1)
}
class fun...
What is the optimal length for an email address in a database?
...ss to allow in a website form? on Raycon with a slightly different mean (N=50,496, mean=23):
share
|
improve this answer
|
follow
|
...
Single Line Nested For Loops
... from A and the b values come from B. For example:
import itertools
A = [50, 60, 70]
B = [0.1, 0.2, 0.3, 0.4]
print [a + b for a, b in itertools.product(A, B)]
This prints:
[50.1, 50.2, 50.3, 50.4, 60.1, 60.2, 60.3, 60.4, 70.1, 70.2, 70.3, 70.4]
Notice how the final argument passed to iterto...
is vs typeof
...bject?
– Rob Parker
Nov 2 '16 at 19:50
|
show 8 more comments
...
How do I fix blurry text in my HTML5 canvas?
...Create canvas with the device resolution.
var myCanvas = createHiDPICanvas(500, 250);
//Create canvas with a custom resolution.
var myCustomCanvas = createHiDPICanvas(500, 200, 4);
Hope this helps!
share
|
...
Animate change of view background color on Android
...ject(new ArgbEvaluator(), colorFrom, colorTo);
colorAnimation.setDuration(250); // milliseconds
colorAnimation.addUpdateListener(new AnimatorUpdateListener() {
@Override
public void onAnimationUpdate(ValueAnimator animator) {
textView.setBackgroundColor((int) animator.getAnimatedVal...
vertical align middle in
I want to keep the height of #abc div at 50px and text to align vertically in the middle of the div .
10 Answers
...
How to get the last N records in mongodb?
...e open query so you could do either ...
db.foo.find().sort({_id:1}).limit(50);
or
db.foo.find().sort({$natural:1}).limit(50);
share
|
improve this answer
|
follow
...