大约有 45,000 项符合查询结果(耗时:0.1234秒) [XML]

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Are list-comprehe<em>nem>sio<em>nem>s <em>a<em>nem>dem> fu<em>nem>ctio<em>nem>al fu<em>nem>ctio<em>nem>s faster tha<em>nem> “for loops”?

... i<em>nem> Pytho<em>nem>, is a list-comprehe<em>nem>sio<em>nem>, or fu<em>nem>ctio<em>nem>s like map() , filter() <em>a<em>nem>dem> reduce() faster tha<em>nem> a for loop? Why, tech<em>nem>ically, they ru<em>nem> i<em>nem> a C speed , while the for loop ru<em>nem>s i<em>nem> the pytho<em>nem> virtual machi<em>nem>e speed ?. ...
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How to fi<em>nem>d the key of the largest value hash?

... You ca<em>nem> also do hash.max_by(&amp;:last) for the pair <em>a<em>nem>dem> hash.max_by(&amp;:last).first for the key. – mahemoff Aug 18 '15 at 17:48 add a comme<em>nem>t ...
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<em>Nem>umpy array assig<em>nem>me<em>nem>t with copy

For example, if we have a <em>nem>umpy array A , <em>a<em>nem>dem> we wa<em>nem>t a <em>nem>umpy array B with the same eleme<em>nem>ts. 3 A<em>nem>swers ...
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vector vs. list i<em>nem> STL

... differe<em>nem>t type of co<em>nem>tai<em>nem>er: What are the complexity guara<em>nem>tees of the st<em>a<em>nem>dem>ard co<em>nem>tai<em>nem>ers? share | improve this a<em>nem>swer | follow | ...
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SQL Server - where is “sys.fu<em>nem>ctio<em>nem>s”?

... I fi<em>nem>d UDFs are very h<em>a<em>nem>dem>y <em>a<em>nem>dem> I use them all the time. I'm <em>nem>ot sure what Micr<em>osem>oft's ratio<em>nem>ale is for <em>nem>ot i<em>nem>cludi<em>nem>g a sys.fu<em>nem>ctio<em>nem>s equivale<em>nem>t i<em>nem> SQL Server 2005 (or SQL Server 2008, as far as I ca<em>nem> tell), but it's easy e<em>nem>ough to roll your ow<em>nem>: ...
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How do you copy the co<em>nem>te<em>nem>ts of a<em>nem> array to a std::vector i<em>nem> C++ without loopi<em>nem>g?

...e structure, so I ch<em>osem>e a std::vector . I do<em>nem>'t wa<em>nem>t to have to do the st<em>a<em>nem>dem>ard loop to push_back all the values i<em>nem>dividually, it would be <em>nem>ice if I could just copy it all usi<em>nem>g somethi<em>nem>g similar to memcpy . ...
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Why <em>a<em>nem>dem> whe<em>nem> to use <em>Nem>ode.js? [duplicate]

Sorry if I'm a bit ambiguous, but I'm tryi<em>nem>g to u<em>nem>derst<em>a<em>nem>dem> the real adva<em>nem>tages of usi<em>nem>g <em>Nem>ode.js i<em>nem>stead of other server-side la<em>nem>guage. ...
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How to i<em>nem>itialize co<em>nem>st member variable i<em>nem> a class?

...io<em>nem> sums it up briefly: A class is typically declared i<em>nem> a header file <em>a<em>nem>dem> a header file is typically i<em>nem>cluded i<em>nem>to ma<em>nem>y tra<em>nem>slatio<em>nem> u<em>nem>its. However, to avoid complicated li<em>nem>ker rules, C++ requires that every object has a u<em>nem>ique defi<em>nem>itio<em>nem>. That rule would be broke<em>nem> if C++ allowed i<em>nem>-class defi<em>nem>i...
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ASP.<em>Nem>ET MVC passi<em>nem>g a<em>nem> ID i<em>nem> a<em>nem> Actio<em>nem>Li<em>nem>k to the co<em>nem>troller

... p<em>osem>tfix: "", imageUploader: { br<em>a<em>nem>dem>i<em>nem>gHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-ico<em>nem>\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"<em>nem>o<em>nem>e\" xml<em>nem>s=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9....
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How to empty a redis database?

I've bee<em>nem> playi<em>nem>g with redis (<em>a<em>nem>dem> add some fu<em>nem> with it) duri<em>nem>g the last fews days <em>a<em>nem>dem> I'd like to k<em>nem>ow if there is a way to empty the db (remove the sets, the existi<em>nem>g key....) easily. Duri<em>nem>g my tests, I created several sets with a lot of members, eve<em>nem> created sets that I do <em>nem>ot remember the <em>nem>ame ...