大约有 21,000 项符合查询结果(耗时:0.0430秒) [XML]

https://stackoverflow.com/ques... 

How does the Amazon Recommendation feature work?

...the data the better the model - and Amazon is BIG. I can only imagine how fun it is to play with models with that much data in a commerce driven site. Now many of those algorithms (like the predictor that started out in commerce server) have moved on to live directly within Microsoft SQL. The fou...
https://stackoverflow.com/ques... 

How to check for file lock? [duplicate]

...OLATION || errorCode == ERROR_LOCK_VIOLATION; – taiji123 Jul 15 '19 at 14:40 ...
https://stackoverflow.com/ques... 

SET NOCOUNT ON usage

... text "SET NOCOUNT ON" itself is a whopping 14 bytes. I used to think that 123 row(s) affected was returned from server in plain text in a separate network packet but that's not the case. It's in fact a small structure called DONE_IN_PROC embedded in the response. It's not a separate network packet ...
https://stackoverflow.com/ques... 

Why are only final variables accessible in anonymous class?

...s = new int[1]; Runnable r = new Runnable() { public void run() { res[0] = 123; } }; r.run(); System.out.println(res[0]); // ... share | improve this answer | follow ...
https://stackoverflow.com/ques... 

C# code to validate email address

...e all perfectly valid forms: cog@wheel "cogwheel the orange"@example.com 123@$.xyz For most use cases, a false "invalid" is much worse for your users and future proofing than a false "valid". Here's an article that used to be the accepted answer to this question (that answer has since been delet...
https://stackoverflow.com/ques... 

What REALLY happens when you don't free after malloc?

... being used). I heard a story about some guy who wrote some code just for fun to make his hardware work better. He said "just a hobby, won't be big and professional". Years later lots of people are using his "hobby" code. s...
https://stackoverflow.com/ques... 

How do I add custom field to Python log format string?

...getLogger('Test') if __name__=='__main__': logger.logMessage('ERROR','123','This is an error') share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How do pointer to pointers work in C?

...act two-dimensional, since strings are character arrays. Hence: char **. A function f will need to accept an argument of type t ** if it is to alter a variable of type t *. Many other reasons that are too numerous to list here. ...
https://stackoverflow.com/ques... 

How can I use goto in Javascript?

... 123 No. They did not include that in ECMAScript: ECMAScript has no goto statement. ...
https://stackoverflow.com/ques... 

What is the optimal algorithm for the game 2048?

...s within reach! You can try the AI for yourself. The code is available at https://github.com/nneonneo/2048-ai. share | improve this answer | follow | ...