大约有 3,000 项符合查询结果(耗时:0.0228秒) [XML]
HTML Script tag: type or language (or omit both)?
... the default value. Hence, you don't need type either.
For pages in XHTML 1.0 or HTML 4.01 omitting type is considered invalid. Try validating the following:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xml...
Which is faster in Python: x**.5 or math.sqrt(x)?
...(x) is always faster than x**.5 on another machine (Ubuntu, Python 2.6 and 3.1):
$ python -mtimeit -s"from math import sqrt; x = 123" "x**.5"
10000000 loops, best of 3: 0.173 usec per loop
$ python -mtimeit -s"from math import sqrt; x = 123" "sqrt(x)"
10000000 loops, best of 3: 0.115 usec per loop
...
How can i get the session object if i have the entity-manager
...
To be totally exhaustive, things are different if you're using a JPA 1.0 or a JPA 2.0 implementation.
JPA 1.0
With JPA 1.0, you'd have to use EntityManager#getDelegate(). But keep in mind that the result of this method is implementation specific i.e. non portable from application server usi...
Change IPython/Jupyter notebook working directory
... Notice that this solution must be slightly changed with Ipython 3.1 as --pylab is not supported any longer. instead of ipython notebook "--pylab inline" write "ipython notebook"
– tagoma
Apr 5 '15 at 13:25
...
How to change ProgressBar's progress indicator color in Android
...ilar to the following (In this case greenprogress.xml):
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:id="@android:id/background">
<shape>
<corners android:radius="5dip"...
Get Folder Size from Windows Command Line
...\dotnet
140,67 C:\my\Tools\vscode
97,33 C:\my\Tools\apache-jmeter-3.1
54,39 C:\my\Tools\mongoadmin
47,89 C:\my\Tools\Python27
35,22 C:\my\Tools\robomongo
share
|
improve thi...
Ball to Ball Collision - Detection and Handling
....0) { // hack to avoid div by zero
collision = Vector(1.0, 0.0);
distance = 1.0;
}
if (distance > 1.0)
return;
// Get the components of the velocity vectors which are parallel to the collision.
// The perpendicular component remains the same f...
JSON left out Infinity and NaN; JSON status in ECMAScript?
...y do support the representation of these three special values (See W3C XSD 1.0 Part 2, Datatypes).
share
|
improve this answer
|
follow
|
...
iphone - how can i get the height and width of uiimage
...the camera roll (via UIImagePickerController) the scale always seems to be 1.0 but the image.size doesn't image.size is not given in pixels. (it's actually half the pixel size). -> how do I get the proper pixel size - cannot use UIScreen.main.scale cause that's 3 on iPhone 6/7 Plus, but image.siz...
Check if all elements in a list are identical
... | | | | |
| s7 | 3.1 usec | 1.4 usec | 1.24 usec | 0.932 usec | 1.92 usec |
| s8 | 4.07 usec | 1.54 usec | 1.28 usec | 0.997 usec | 1.79 usec |
| s9 | 5.91 usec | 1.25 usec | 0.749 usec | 0.407 usec ...
