大约有 47,000 项符合查询结果（耗时：0.0556秒） [XML]
Creating Threads in python
I have a script and I want one function to run at the same time as the other.
6 Answers
...
Secure hash and salt for PHP passwords
...d to your user except when they have lost theirs, and you sent a temporary one.
Never, ever log passwords in any manner.
Never hash passwords with SHA1 or MD5 or even SHA256! Modern crackers can exceed 60 and 180 billion hashes/second (respectively).
Don't mix bcrypt and with the raw output of hash(...
Alternative timestamping services for Authenticode
... again (immediately) twice more
The build script used to sign every exe in one step (and we have several as part of our product), and now it does one-by-one - takes slightly longer, but is less likely to fail
Between these, build failures caused by timestamp server issues have gone from once or tw...
String.format() to format double in java
...
If there is more than one double to format, use %1, %2, and so on. For example String.format("%1$,.2f, %2$,.2f", myDouble, aDouble)
– Moesio
Mar 10 '13 at 5:29
...
With CSS, use “…” for overflowed block of multi-lines
...es. */
.pre-dots {
float: right;
height: 36px; /* 2x line height (one less than visible lines) */
}
.dots {
float: right; /* to make the text wrap around the dots */
clear: right; /* to push us below (not next to) .pre-dots */
}
/* hides the dots if the text has *exactly* 3 lines ...
How can I change the thickness of my tag
...he thickness of my horizontal rule ( <hr> )in CSS. I know it can be done in HTML like so -
9 Answers
...
How to split/partition a dataset into training and test datasets for, e.g., cross validation?
... many ways to repeatedly partition the same data set for cross validation. One strategy is to resample from the dataset, with repetition:
import numpy
# x is your dataset
x = numpy.random.rand(100, 5)
training_idx = numpy.random.randint(x.shape[0], size=80)
test_idx = numpy.random.randint(x.shape[0...
How to write to a file, using the logging Python module?
... question, feel free to look at the title of the question I asked. I have gone over the link you provided and it was helpful. I have copied the code you gave me and was I wrong to assume I would be able to use logger.info("message") and logger.warning("message") successfully? I was able to write to ...
How to run a shell script on a Unix console or Mac terminal?
...responsible for figuring out how to execte it. For non-binaries, this is done by looking at the first line of the file. It should contain a hashbang:
#! /usr/bin/env bash
The hashbang tells the kernel what program to run (in this case the command /usr/bin/env is ran with the argument bash). Th...
What is pseudopolynomial time? How does it differ from polynomial time?
...in the input array, correspond to the the number of bits of input? As mentioned earlier, the number of bits of input will be x = 32n. Therefore, if we express the runtime of the algorithm in terms of x rather than n, we get that the runtime is O(x2), and so the algorithm runs in polynomial time.
Si...