大约有 30,000 项符合查询结果(耗时:0.0454秒) [XML]
Why can't my program compile under Windows 7 in French? [closed]
... think you're using “French (France)” (what we users of civilized OSes call fr_FR). MS's fr_FR locale behaves in a very weird way: uppercase accented letters are mapped to their unaccented counterpart (for backward compatibility with some typewriter models). So you need to write SORTIE_SUCCES in...
Why would one use REST instead of SOAP based services? [closed]
...
Less overhead (no SOAP envelope to wrap every call in)
Less duplication (HTTP already represents operations like DELETE, PUT, GET, etc. that have to otherwise be represented in a SOAP envelope).
More standardized - HTTP operations are well understood and operate consis...
About catching ANY exception
... are times when you're dealing with third party libraries (sometimes dynamically loaded!!) that have gone totally crazy with exceptions and tracking them all down can be a very painful task, and if you miss just one, you have a very very huge painful bug in your system. That being said, it's good...
Is if(items != null) superfluous before foreach(T item in items)?
...
@CodeInChaos: Do you typically find that the speed of enumerating an empty sequence is the performance bottleneck in your program?
– Eric Lippert
Jun 23 '11 at 15:19
...
Sorting object property by values
... _.pairs turns an object into [ [key1, value1], [key2, value2] ]. Then call sort on that. Then call _.object on it to turn it back.
– Funkodebat
Feb 20 '14 at 14:45
2
...
How to handle multiple cookies with the same name?
...
So how can one delete the multiple identical cookies? I have hammered on this for two days now and the duplicate cookies seem indestructible.
– Bob Jones
Aug 7 '12 at 23:14
...
How to len(generator()) [duplicate]
...are functions with a internal state (and fancy syntax). You can repeatedly call them to get a sequence of values, so you can use them in loop. But they don't contain any elements, so asking for the length of a generator is like asking for the length of a function.
if functions in Python are obj...
Describe the architecture you use for Java web applications? [closed]
... transactions upon entering the service layer, propagating down to the DAO call's. The Service layer has the most bussines model knowledge, and the DAO's do relatively simple CRUD work.
Some more complicated query stuff is handled by more complicated queries in the backend for performance reasons.
...
What is more efficient: Dictionary TryGetValue or ContainsKey+Item?
...on instead of returning false.
Using ContainsKey followed by the Item basically duplicates the lookup functionality, which is the bulk of the computation in this case.
share
|
improve this answer
...
Optimistic vs. Pessimistic locking
... locking but requires you to be careful with your application design to avoid Deadlocks. To use pessimistic locking you need either a direct connection to the database (as would typically be the case in a two tier client server application) or an externally available transaction ID that can be used...
