大约有 40,000 项符合查询结果(耗时:0.0376秒) [XML]
raw_input function in Python
...and run the program.
This is what it looked like for me:
C:\temp>type test.py
print "Halt!"
s = raw_input("Who Goes there? ")
print "You may pass,", s
C:\temp>python test.py
Halt!
Who Goes there? Magnus
You may pass, Magnus
I types my name and pressed [Enter] after the program
had printed...
Why do std::shared_ptr work
...t will be used to destroy it.
The deleter function of your shared_ptr<Test>, given the way you constructed it, is the normal one for Test, which converts the pointer to Test* and deletes it.
When you push your shared_ptr<Test> into the vector of shared_ptr<void>, both of those a...
“is” operator behaves unexpectedly with integers
...tively. For example:
>>> a = 1000
>>> a == 1000 # Test integers like this,
True
>>> a != 5000 # or this!
True
>>> a is 1000 # Don't do this! - Don't use `is` to test integers!!
False
Explanation
To know this, you need to know the following.
...
Singular or plural controller and helper names in Rails
...ards/debit.
Controller: app/controllers/credit_cards_controller.rb
Test: test/controllers/credit_cards_controller_test.rb
Views: app/views/credit_cards/debit.html.erb [...]
Helper: app/helpers/credit_cards_helper.rb
...
How to make a always full screen?
...if the page content fits on the screen, the page won't show a scroll-bar.
Tested in IE9+, Firefox 13+, Chrome 21+
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title> Fullscreen Div </title>
<style>
.overlay {
position: fix...
Efficient way to remove keys with empty strings from a dict
...on (and more readable I think)
{k: v for k, v in metadata.items() if v}
Tested with Python 2.7.3.
share
|
improve this answer
|
follow
|
...
How to decide font color in white or black depending on background color?
...dations is (L1 + 0.05) / (L2 + 0.05), where L1 is the luminance of the lightest color and L2 is the luminance of the darkest on a scale of 0.0-1.0. The luminance of black is 0.0 and white is 1.0, so substituting those values lets you determine the one with the highest contrast. If the contrast for b...
Python list of dictionaries search
...
I tested various methods to go through a list of dictionaries and return the dictionaries where key x has a certain value.
Results:
Speed: list comprehension > generator expression >> normal list iteration >...
How do I know the script file name in a Bash script?
... usually don't want to confuse the user this way), try:
me="$(basename "$(test -L "$0" && readlink "$0" || echo "$0")")"
IMO, that'll produce confusing output. "I ran foo.sh, but it's saying I'm running bar.sh!? Must be a bug!" Besides, one of the purposes of having differently-named ...
Truncating long strings with CSS: feasible yet?
...from 6 to 11 already support the text-overflow CSS property.
Successfully tested (on Browserstack.com) on Windows OS, for web browsers:
IE6 to IE11
Opera 10.6, Opera 11.1, Opera 15.0, Opera 20.0
Chrome 14, Chrome 20, Chrome 25
Safari 4.0, Safari 5.0, Safari 5.1
Firefox 7.0, Firefox 15
Firefox: ...
