大约有 47,000 项符合查询结果（耗时：0.0491秒） [XML]
First-time database design: am I overengineering? [closed]
...
Some more answers to your questions:
1) You're pretty much on target for someone who is approaching a problem like this for the first time. I think the pointers from others on this question thus far pretty much cover it. Good jo...
Why are arrays covariant but generics are invariant?
...e of Object[].
This answers the question "Why are arrays covariant?", or more accurately, "Why were arrays made covariant at the time?"
When generics were introduced, they were purposefully not made covariant for reasons pointed out in this answer by Jon Skeet:
No, a List<Dog> is not a ...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...
I'm afraid I don't have a proof, nor am I anymore the right person to try to think one up. I did write half of GCC's preprocessor, but that was more than ten years ago, and I'd never have thought of the argument-counting trick below, even then.
– z...
How do I get started with Node.js [closed]
...
@David: More or less randomly. First two are freely available and the last one is in preview mode. I would recommend to start with The Node Beginner.
– yojimbo87
May 17 '11 at 15:18
...
Defeating a Poker Bot
...ost of the behavioural simulations you can run are fairly obvious, but the more inconsistant and unpredictable your bot is, the less likely it is to be discovered.
Create realistic playing schedules
(i.e., 3–5 times a week, 4 hours per
session with the odd week here and
there off during the year...
Get all non-unique values (i.e.: duplicate/more than one occurrence) in an array
...
This script doesn't work so well with more than 2 duplicates (e.g. arr = [9, 9, 9, 111, 2, 3, 3, 3, 4, 4, 5, 7];
– Mottie
Oct 23 '10 at 15:00
7...
DateTime2 vs DateTime in SQL Server
... types for new
work. These types align with the SQL
Standard. They are more portable.
time, datetime2 and datetimeoffset
provide more seconds precision.
datetimeoffset provides time zone
support for globally deployed
applications.
datetime2 has larger date range, a larger default fra...
Why should you use an ORM? [closed]
...
Making data access more abstract and portable. ORM implementation classes know how to write vendor-specific SQL, so you don't have to.
share
|
...
Why would I prefer using vector to deque
..., since there is some extra bookkeeping, other ops are probably (slightly) more expensive than their equivalent vector operations. On the other hand, using many/large instances of vector may lead to unnecessary heap fragmentation (slowing down calls to new).
Also, as pointed out elsewhere on Stack...
Disadvantages of Test Driven Development? [closed]
... 20% of the actual implementation, but for complicated cases you lose much more.
Additional Complexity. For complex cases your test cases are harder to calculate, I'd suggest in cases like that to try and use automatic reference code that will run in parallel in the debug version / test run, instead...