大约有 30,000 项符合查询结果（耗时：0.0609秒） [XML]
Why is Go so slow (compared to Java)?
...e language as such, except to the extent that the implementation spends runtime supporting language features that the benchmark doesn't really need. In most compiled languages a sufficiently clever compiler could in theory strip out what isn't needed, but there comes a point where you're rigging the...
How do I use JDK 7 on Mac OSX?
...build of OpenJDK produced by Azul Systems that should be around for a long time (they even offer JDK6 builds still).
brew cask install caskroom/versions/zulu7
share
|
improve this answer
...
Do I have to guard against SQL injection if I used a dropdown?
...r I can't think of any reason not to always use prepared statements, every time, for everything, always. Can you tell me one?
– Wesley Murch
Mar 20 '14 at 15:08
...
What is the real overhead of try/catch in C#?
...t I don't know), and if so, this would be decently sized hidden cost every time an exception is thrown... so it's not like you are just jumping from one place in the code to another, there is a lot going on.
I don't think it's a problem as long as you are using exceptions for EXCEPTIONAL behavior (...
Standard Android menu icons, for example refresh [closed]
...yours? I have to use google to find this topic and find your comment every time I want to find a standard icon, because that directory is too obscure to remember and not mentioned anywhere else on the internet.
– ArtOfWarfare
Aug 17 '12 at 20:41
...
Git error: “Host Key Verification Failed” when connecting to remote repository
...>> ~/.ssh/known_hosts
or, equivalently, let ssh do it for you next time you connect with git fetch, git pull, or git push (or even a plain ol’ ssh domain.com) by answering yes when prompted
The authenticity of host 'domain.com (a.b.c.d)' can't be established.
RSA key fingerprint is XX:XX:...
Using Kafka as a (CQRS) Eventstore. Good idea?
...—whether or not they
have been consumed—for a configurable period of time. For example if
the retention is set for two days, then for the two days after a
message is published it is available for consumption, after which it
will be discarded to free up space. Kafka's performance is effec...
Backbone.js get and set nested object attribute
... compare the object you are setting with the object you are getting at set time. So if you don't clone then the two objects, then the two objects being compared are exactly the same at set time.
– Derek Dahmer
Oct 24 '13 at 22:33
...
Insert, on duplicate update in PostgreSQL?
...
Warning: this is not safe if executed from multiple sessions at the same time (see caveats below).
Another clever way to do an "UPSERT" in postgresql is to do two sequential UPDATE/INSERT statements that are each designed to succeed or have no effect.
UPDATE table SET field='C', field2='Z' WHE...
Use 'import module' or 'from module import'?
... to a module. Granted this may not be very common, but I've needed it from time to time.
Due to the way references and name binding works in Python, if you want to update some symbol in a module, say foo.bar, from outside that module, and have other importing code "see" that change, you have to imp...