大约有 47,000 项符合查询结果（耗时：0.0711秒） [XML]
Initial bytes incorrect after Java AES/CBC decryption
...utputs bytes, so does decryption (case in point : the Cipher object does). Now, one particular use case may be to have encrypted bytes coming from a String, or be sent as a String (base64 MIME attachment for a Mail...), but that is an issue of encoding bytes, for which there exists hundreds of solut...
Piping command output to tee but also save exit code of command [duplicate]
...han a single pipe then you'll need to check the status of each command to know where it failed.
– Joshua Olson
Aug 23 '13 at 2:11
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Mysql order by specific ID values
...
UNIQUE KEY `my_number` (`my_number`)
) ENGINE=INNODB;
This table will now be used to define your own order mechanism.
Add your values in there:
my_order | my_number
---------+----------
1 | 1
2 | 5
3 | 4
4 | 3
...and then modify y...
How can I check the extension of a file?
...rmalise it to lowercase.
ext = os.path.splitext(fp)[-1].lower()
# Now we can simply use == to check for equality, no need for wildcards.
if ext == ".mp3":
print fp, "is an mp3!"
elif ext == ".flac":
print fp, "is a flac file!"
else:
print fp, "is an unkno...
Most simple but complete CMake example
...eant to be written, it vanishes in the next example I read. All I want to know is, how should I structure my project, so that my CMake requires the least amount of maintainance in the future. For example, I don't want to update my CMakeList.txt when I am adding a new folder in my src tree, that work...
How to get element by class name? [duplicate]
... first one use:
document.getElementsByClassName('class_name')[0]
UPDATE
Now you can use:
document.querySelector(".class_name") to get the first element with the class_name CSS class (null will be returned if non of the elements on the page has this class name)
or document.querySelectorAll(".cla...
How to test if parameters exist in rails
...I, but I'm sure that's safe enough. I've been calling params.to_h.key? for now.
– stephen.hanson
Nov 9 '16 at 19:38
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How do you check whether a number is divisible by another number (Python)?
...e if and only if n is an exact multiple of k. In elementary maths this is known as the remainder from a division.
In your current approach you perform a division and the result will be either
always an integer if you use integer division, or
always a float if you use floating point division.
It...
Display block without 100% width
...rs ago it did not have wide enough support for me to use in production but now it does.
– Xandor
Sep 11 at 21:53
add a comment
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What is the use of interface constants?
...he constant interface is not part of the exported API module or when it is nowhere implemented, I don't see the problem. Using const final classes is ugly: you need a private constructor which clutters the code as it has no use.
– Lawrence
Sep 28 '18 at 11:08
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