大约有 40,000 项符合查询结果(耗时:0.0623秒) [XML]

https://stackoverflow.com/ques... 

Learning WebGL and three.js [closed]

...cher Dunn and Ian Parberry Essential Mathematics for Games and Interactive Applications: A Programmer’s Guide by James M. Van Verth and Lars M. Bishop Mathematics for 3D Game Programming and Computer Graphics by Eric Lengyel I hope this is helpful to you. Good luck. ...
https://stackoverflow.com/ques... 

Google maps API V3 - multiple markers on exact same spot

...nt. google.maps.event.trigger(markerClusterer, 'clusterclick', this.cluster_); var zoom = this.map_.getZoom(); var maxZoom = markerClusterer.getMaxZoom(); // if we have reached the maxZoom and there is more than 1 marker in this cluster // use our onClick method to popup a list of options if (zoom ...
https://stackoverflow.com/ques... 

What is the difference between AF_INET and PF_INET in socket programming?

What is the difference between AF_INET and PF_INET in socket programming? 7 Answers 7 ...
https://stackoverflow.com/ques... 

In Python, how can you load YAML mappings as OrderedDicts?

...rary code this is a bad idea. Also, it doesn't directly work with yaml.safe_load(). Fortunately, the solution can be improved without much effort: import yaml from collections import OrderedDict def ordered_load(stream, Loader=yaml.Loader, object_pairs_hook=OrderedDict): class OrderedLoader(L...
https://stackoverflow.com/ques... 

python exception message capturing

...is no longer supported in python 3. Use the following instead. try: do_something() except BaseException as e: logger.error('Failed to do something: ' + str(e)) share | improve this answer ...
https://stackoverflow.com/ques... 

How do I parallelize a simple Python loop?

...tead: pool = multiprocessing.Pool(4) out1, out2, out3 = zip(*pool.map(calc_stuff, range(0, 10 * offset, offset))) Note that this won't work in the interactive interpreter. To avoid the usual FUD around the GIL: There wouldn't be any advantage to using threads for this example anyway. You want t...
https://stackoverflow.com/ques... 

Converting a string to a date in JavaScript

... function stringToDate(_date,_format,_delimiter) { var formatLowerCase=_format.toLowerCase(); var formatItems=formatLowerCase.split(_delimiter); var dateItems=_date.split(_delimiter); var monthIndex=f...
https://stackoverflow.com/ques... 

mongo group query how to keep fields

...h group, you can try aggregating like: db.test.aggregate({ $group: { _id : '$name', name : { $first: '$name' }, age : { $first: '$age' }, sex : { $first: '$sex' }, province : { $first: '$province' }, city : { $first: '$city' }, area : { $first: '$area' }, address : { $firs...
https://stackoverflow.com/ques... 

How do you know when to use fold-left and when to use fold-right?

...ee it. It's "haskell-style pseudocode". :) – laughing_man Apr 21 '15 at 2:38 ...
https://stackoverflow.com/ques... 

When to use enumerateObjectsUsingBlock vs. for

...need to modify local variables" - not true; you can declare your locals as __block and they'll be writable in the block. enumerateObjectsWithOptions:usingBlock: supports either concurrent or reverse enumeration. with dictionaries, block based enumeration is the only way to retrieve the key and value...