大约有 44,000 项符合查询结果(耗时:0.0587秒) [XML]

https://stackoverflow.com/ques... 

How do I trim leading/trailing whitespace in a standard way?

...st answer isn't good at all unless you don't care about memory leaks. You now have two overlapping strings (the original, which has it's trailing spaces trimmed, and the new one). Only the original string can be freed, but if you do, the second one points to freed memory. – D...
https://stackoverflow.com/ques... 

Importing from builtin library when module with same name exists

... The accepted solution contains a now-deprecated approach. The importlib documentation here gives a good example of the more appropriate way to load a module directly from a file path for python >= 3.5: import importlib.util import sys # For illustrativ...
https://stackoverflow.com/ques... 

What exactly is Python's file.flush() doing?

...instructed. Addendum in 2018. Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well, but I don't really know. ...
https://stackoverflow.com/ques... 

Is there any NoSQL data store that is ACID compliant?

...@gbn for the mention of CAP theorem. Being more familiar with "nosql" db's now than I was then has only reinforced the separation of the concepts. Also, key-value vs doc databases, since there are architectural differences. – AJ. Jul 25 '12 at 3:22 ...
https://stackoverflow.com/ques... 

What's the cause of this FatalExecutionEngineError in .NET 4.5 beta? [closed]

...compiler changed so that it did not emit a static constructor for string, knowing that String.Empty would be assigned from the unmanaged side. This change appears to have been made for .NET 4.5. It appears that the EE does not assign String.Empty soon enough along some optimization paths. The ch...
https://stackoverflow.com/ques... 

How does collections.defaultdict work?

... How do we know what is the default value for each type? 0 for int() and [] for list() are intuitive, but there can also be more complex or self-defined types. – Sean Mar 11 at 10:40 ...
https://stackoverflow.com/ques... 

What is the relation between BLAS, LAPACK and ATLAS

... Thanks for the explanations. Do you know any examples of HOW to use ATLAS+LAPACK? I need to see a few examples to understand how to use these! I understand what they are for and the theory of what they do, but I can hardly find any examples in C on how to implem...
https://stackoverflow.com/ques... 

Error: Can't set headers after they are sent to the client

... You know I have this exact problem due to what you call a problematic middleware, however I need a case where I return response but would like to do further processing in a separate controller as part of the chain, how do I go abo...
https://stackoverflow.com/ques... 

In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?

...ke AJAX does -- but long polling was created when WebSockets didn't exist. Now due to WebSockets, long polling is going away. WebRTC allows for peer-to-peer communication. I recommend learning WebSockets. Comparison: of different communication techniques on the web AJAX - request → respons...
https://stackoverflow.com/ques... 

What are the benefits of using C# vs F# or F# vs C#? [closed]

...uld probably be some people who disagree with this since it's "cool" right now to "prove" how easy it is to do anything in F#, but I stand by it). There are countless others. share ...