大约有 47,000 项符合查询结果（耗时：0.0354秒） [XML]
What are “named tuples” in Python?
...tances can be referenced using object-like variable dereferencing or the standard tuple syntax. They can be used similarly to struct or other common record types, except that they are immutable. They were added in Python 2.6 and Python 3.0, although there is a recipe for implementation in Python 2...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...ially recover the Raspberry Pi, it will most likely be in a rural location and I'd like to turn off the Pi at that point safely.
...
What is the difference between URI, URL and URN? [duplicate]
What's the difference between an URI, URL and URN? I have read a lot of sites (even Wikipedia) but I don't understand it.
4...
Mac OSX Lion DNS lookup order [closed]
...
I think he matter is Lion handles .local TLD differently because it's reserved for some Multicast DNS features (used by Bonjour). The only way i found to solve this issue is using a different TLD for development hosts (ie: .dev). It works fine for me, ...
What are the effects of exceptions on performance in Java?
Question: Is exception handling in Java actually slow?
18 Answers
18
...
Convert any object to a byte[]
I am writing a prototype TCP connection and I am having some trouble homogenizing the data to be sent.
13 Answers
...
SQL - using alias in Group By
...d because they must have been introduced in a previous step.
So in Oracle and SQL Server, you cannot use a term in the GROUP BY clause that you define in the SELECT clause because the GROUP BY is executed before the SELECT clause.
There are exceptions though: MySQL and Postgres seem to have additi...
Check whether number is even or odd
...r is even or odd? I've been wanting to figure this out for a long time now and haven't gotten anywhere.
16 Answers
...
Finding current executable's path without /proc/self/exe
...ecutable or a name that was found using $PATH.
Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable before it is executed. In that case you can use getenv("_") to get it. However this is unreliable because not all shells do this, and it could be ...
SourceKitService Terminated
...e with Xcode where the error "Source Kit Service Terminated" is popping up and all syntax highlighting and code completion is gone in Swift. How can I fix this?
...