大约有 5,100 项符合查询结果(耗时:0.0239秒) [XML]

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A semantics for Bash scripts?

... print_function import os, sys '''Hacky barebones shell.''' try: input=raw_input except NameError: pass def main(): while True: cmd = input('prompt> ') args = cmd.split() if not args: continue cpid = os.fork() if cpid == 0: # We're in a child process ...
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C++ mark as deprecated

...e that you at some point need a section of preprocessed alternatives for a range of platforms. #ifdef this #ifdef that and so on. In such a section you could very well conditionally define a way to deprecate symbols. My preference is usually to define a "warning" macro since most toolchains suppor...
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Practical example where Tuple can be used in .Net 4.0?

...of one: // sum and sum of squares at the same time var x = Enumerable.Range(1, 100) .Aggregate((acc, x) => Tuple.Create(acc.Item1 + x, acc.Item2 + x * x)); Instead of combining a collection of values into a single result, let's expand a single result into a collection of values. The ea...
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How to remove outliers from a dataset

I've got some multivariate data of beauty vs ages. The ages range from 20-40 at intervals of 2 (20, 22, 24....40), and for each record of data, they are given an age and a beauty rating from 1-5. When I do boxplots of this data (ages across the X-axis, beauty ratings across the Y-axis), there are so...
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Normalize data in pandas

...ay you have values [-5,1,10] in a sample, but want to normalize based on a range of -7 to 7 (so anything above 7, our "10" is treated as a 7 effectively) with a midpoint of 2, but shrink it to fit a 256 RGB colormap: #In[1] NormData([-5,2,10],low=-7,center=1,hi=7,shrinkfactor=2./256) #Out[1] [0.127...
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What is the difference between varchar and varchar2 in Oracle?

...language types instead of proprietary data formats. OCI can perform a wide range of data type conversions when transferring data between an Oracle database and an OCI application. There are more OCI external data types than Oracle internal data types. The VARCHAR2 data type is a variable-length str...
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Does VBA have Dictionary Structure?

..."Key2" c.Add "Data3", "Key3" 'Insert data via key into cell A1 Range("A1").Value = c.Item("Key2") The Collection object performs key-based lookups using a hash so it's quick. You can use a Contains() function to check whether a particular collection contains a key: Public Function ...
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Split Strings into words with multiple word boundary delimiters

...pression is here to prevent the special interpretation of - as a character range indicator (as in A-Z), the + skips one or more delimiters (it could be omitted thanks to the filter(), but this would unnecessarily produce empty strings between matched separators), and filter(None, …) removes the em...
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How to host a Node.Js application in shared hosting [closed]

...nature@1.0.6, methods@1.1.1, cookie@0.1.2, fresh@0.2.4, escape-html@1.0.1, range-parser@1.0.2, finalhandler@0.3.6, content-type@1.0.1, vary@1.0.0, parseurl@1.3.0, serve-static@1.9.3, content-disposition@0.5.0, path-to-regexp@0.1.3, depd@1.0.1, qs@2.4.2, on-finished@2.2.1, debug@2.2.0, etag@1.6.0, pr...
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Making a WinForms TextBox behave like your browser's address bar

...t fails in one specific case. If you give the TextBox focus by selecting a range of text instead of just clicking, the alreadyFocussed flag doesn't get set to true, so when you click in the TextBox a second time, all the text gets selected. Here is my version of the solution. I've also put the code...