大约有 32,000 项符合查询结果（耗时：0.0564秒） [XML]
Why have header files and .cpp files? [closed]
... instance variables part of a class's interface? Private member functions? Then what the hell are they doing in the publicly visible header? And it falls further apart with templates.
– jalf
Dec 2 '08 at 18:13
...
Remove sensitive files and their commits from Git history
...he sensitive information, you can simply remove the sensitive information, then run:
git commit -a --amend
That will amend the previous commit with any new changes you've made, including entire file removals done with a git rm. If the changes are further back in history but still not pushed to a ...
c# open a new form then close the current form?
For example, Assume that I'm in form 1 then I want:
15 Answers
15
...
Generate .pem file used to set up Apple Push Notifications
...pem file, every time generating certificates from the client's account and then generating the .pem file using the terminal, but it's of no use. Can anyone give a step-by-step procedure?
...
How do you display JavaScript datetime in 12 hour AM/PM format?
...
@Balz If minutes is less than 10 (e.g. 16:04), then that statement adds the string "0" so that the formatted output is "4:04 PM" instead of "4:4 PM". Note that in the process, minutes changes from a Number to a String.
– Caleb Bell
J...
Random data in Unit Tests?
...thesis that there exists some program that meets it. The program itself is then evidence of that hypothesis. What unit testing ought to be is an attempt to provide counter-evidence to refute that the program works according to the spec.
Now, you can write the unit tests by hand, but it really is a ...
Circle line-segment collision detection algorithm?
...rom start to end )
f = E - C ( Vector from center sphere to ray start )
Then the intersection is found by..
Plugging:
P = E + t * d
This is a parametric equation:
Px = Ex + tdx
Py = Ey + tdy
into
(x - h)2 + (y - k)2 = r2
(h,k) = center of circle.
Note: We've simplified the problem to 2D her...
Python “raise from” usage
...age states that the exception was directly caused by. If you omit the from then no __cause__ is set, but the __context__ attribute may be set as well, and the traceback then shows the context as during handling something else happened.
Setting the __context__ happens if you used raise in an excepti...
How can I check if a program exists from a Bash script?
...;the_command>
Example use:
if ! command -v COMMAND &> /dev/null
then
echo "COMMAND could not be found"
exit
fi
For Bash specific environments:
hash <the_command> # For regular commands. Or...
type <the_command> # To check built-ins and keywords
Explanation
Avoid whic...
How to get complete month name from DateTime
...
If it's only the month you're interested in then DateTime.Today instead of DateTime.Now is a further simplification. No useless time portion and a bit faster.
– OrizG
Dec 12 '17 at 21:58
...