大约有 47,000 项符合查询结果(耗时:0.0586秒) [XML]

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Android:What is difference between setFlags and addFlags for intent

... flags look like this: 1, 10, 100, 1000, etc... (which in this case are 1, 2, 4, 8). So, what addFlags does is appending the integer you pass using the | operator. // example... // value of flags: 1 intent.setFlags(2|4); // now flags have this value: 110 intent.addFlags(8); // now flags have thi...
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initializing a boolean array in java

... 286 I just need to initialize all the array elements to Boolean false. Either use boolean[] i...
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Ruby Array find_first object?

... 203 Either I don't understand your question, or Enumerable#find is the thing you were looking for....
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Class with Object as a parameter

... In Python2 this declares Table to be a new-style class (as opposed to "classic" class). In Python3 all classes are new-style classes, so this is no longer necessary. New style classes have a few special attributes that classic classe...
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Small Haskell program compiled with GHC into huge binary

... 2 Answers 2 Active ...
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Regex how to match an optional character

... 256 Use [A-Z]? to make the letter optional. {1} is redundant. (Of course you could also write [...
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How does the following LINQ statement work?

... 235 The output is 2,4,6,8 because of deferred execution. The query is actually executed when t...
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Default function arguments in Rust

... | edited Mar 24 '19 at 21:20 answered Jun 5 '14 at 0:06 ...
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Get distance between two points in canvas

... 211 You can do it with pythagoras theorem If you have two points (x1, y1) and (x2, y2) then you c...
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python numpy machine epsilon

...for a given float type is to use np.finfo(): print(np.finfo(float).eps) # 2.22044604925e-16 print(np.finfo(np.float32).eps) # 1.19209e-07 share | improve this answer | fol...