大约有 43,000 项符合查询结果(耗时:0.0285秒) [XML]

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NumPy or Pandas: Keeping array type as integer while having a NaN value

...Wes, is there any update on this? We run into issues that join columns are converted into either ints or floats, based on the existence of a NA value in the original list. (Creating issues later on when trying to merge these dataframes) – Carst Jul 23 '13 at 21...
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How do you convert a byte array to a hexadecimal string, and vice versa?

How can you convert a byte array to a hexadecimal string, and vice versa? 45 Answers 4...
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How to get index using LINQ? [duplicate]

...<T, bool>), Exists(Predicate<T>) vs. Any(Func<T, bool>), ConvertAll(Converter<T, TOutput>) vs. Select(Func<T1, T2>), etc. – SLaks Mar 18 '10 at 17:28 ...
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Converting Secret Key into a String and Vice Versa

I am generating a key and need to store it in DB, so I convert it into a String, but to get back the key from the String. What are the possible ways of accomplishing this? ...
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Is there a printf converter to print in binary format?

I can print with printf as a hex or octal number. Is there a format tag to print as binary, or arbitrary base? 52 Answer...
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How to automatically convert strongly typed enum into int?

...s trying to achieve, but there is a small difference : normal enums can be converted into integer type, while strongly typed enums can not do it without a cast. ...
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Convert int to ASCII and back in Python

...t applicable. I had arrived on this question based on the title, literally converting an integer to ascii text as if the integer has ascii encoded data embedded in its bytes. I posted this answer in the event others arrived here with the same desired outcome. – Matthew Davis ...
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Java: how to convert HashMap to array

I need to convert a HashMap<String, Object> to an array; could anyone show me how it's done? 12 Answers ...
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Convert JSON String To C# Object

Trying to convert a JSON string into an object in C#. Using a really simple test case: 13 Answers ...
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Convert a PHP object to an associative array

...ecast it $array = (array) $yourObject; From Arrays: If an object is converted to an array, the result is an array whose elements are the object's properties. The keys are the member variable names, with a few notable exceptions: integer properties are unaccessible; private variables have the ...