大约有 16,000 项符合查询结果(耗时:0.0393秒) [XML]

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Numpy: find first index of value fast

...Python and Fortran code are available. I skipped the unpromising ones like converting to a list. The results on log scale. X-axis is the position of the needle (it takes longer to find if it's further down the array); last value is a needle that's not in the array. Y-axis is the time to find it. ...
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Generating all permutations of a given string

... Elegant, yes. But a solution that converts to a char array and swaps to generate the permutations will require much less copying and generate much less garbage. Also this algorithm fails to take repeated characters into account. – Gene ...
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How do I raise the same Exception with a custom message in Python?

....args[0] + " hello",) + err.args[1:] may work more reliably (and then just convert to a string to get the message). – Duncan Feb 6 '12 at 9:50 1 ...
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Accessing MVC's model property from Javascript

...nexpected number numbers cannot have special characters, The HTML tags are converted into its entity names so that the browser doesn't mix up your values and the HTML markup. 2) Wrapping property assignment in Quotes. var Name = '@Model.Name'; var Age = '@Model.Age'; var LoginTime = '@Model.LoginD...
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Why are arrays of references illegal?

... An array is implicitly convertable to a pointer, and pointer-to-reference is illegal in C++ share | improve this answer | ...
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What's the cleanest way of applying map() to a dictionary in Swift?

...ether, substituting a default value for missing elements, grouping values (converting a collection into a dictionary of arrays, keyed by the result of mapping the collection over some function), and more. During discussion of the proposal, SE-0165, that introduced these features, I brought up this ...
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How to access session variables from any class in ASP.NET?

... and if you want to convert to HttpSessionStateBase: HttpSessionStateBase session = new HttpSessionStateWrapper(HttpContext.Current.Session); re: stackoverflow.com/questions/5447611/… – sobelito Oct 26 '1...
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Detecting endianness programmatically in a C++ program

... The network conversion ops can also be used to convert everything to big endian, thus solving other problems Jay may be encountering. – Brian Jun 16 '09 at 13:15 ...
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How do you read a file into a list in Python? [duplicate]

...a file. He gave us that part. The part we have to do is to open that file, convert the numbers into a list, then find the mean, standard deviation, etc. without using the easy built-in Python tools. ...
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Default parameters with C++ constructors [closed]

... you have defaults for all but one parameter, your class can be implicitly converted from that parameter type. Check out this thread for more info. share | improve this answer | ...