大约有 10,160 项符合查询结果(耗时:0.0164秒) [XML]
Appending the same string to a list of strings in Python
I am trying to take one string, and append it to every string contained in a list, and then have a new list with the completed strings. Example:
...
Why is an MD5 hash created by Python different from one created using echo and md5sum in the shell?
A Python MD5 hash is different than the one created by the md5sum command on the shell. Why?
1 Answer
...
Logic to test that 3 of 4 are True
I want to return True if and only if 3 out of 4 boolean values are true.
27 Answers
...
Which is faster: multiple single INSERTs or one multiple-row INSERT?
I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster?
...
Determine Whether Integer Is Between Two Other Integers?
How do I determine whether a given integer is between two other integers (e.g. greater than/equal to 10000 and less than/equal to 30000 )?
...
Why should eval be avoided in Bash, and what should I use instead?
Time and time again, I see Bash answers on Stack Overflow using eval and the answers get bashed, pun intended, for the use of such an "evil" construct. Why is eval so evil?
...
Sorting multiple keys with Unix sort
I have potentially large files that need to be sorted by 1-n keys. Some of these keys might be numeric and some of them might not be. This is a fixed-width columnar file so there are no delimiters.
...
Good example of livelock?
I understand what livelock is, but I was wondering if anyone had a good code-based example of it? And by code-based, I do not mean "two people trying to get past each other in a corridor". If I read that again, I'll lose my lunch.
...
Process all arguments except the first one (in a bash script)
I have a simple script where the first argument is reserved for the filename, and all other optional arguments should be passed to other parts of the script.
...
Best way to simulate “group by” from bash?
Suppose you have a file that contains IP addresses, one address in each line:
14 Answers
...
