大约有 46,000 项符合查询结果(耗时:0.0592秒) [XML]

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ToList()— does it create a new list?

Let's say I have a class 12 Answers 12 ...
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How do I do base64 encoding on iOS?

I'd like to do base64 encoding and decoding, but I could not find any support from the iPhone SDK . How can I do base64 encoding and decoding with or without a library? ...
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How to compute the sum and average of elements in an array?

I am having problems adding all the elements of an array as well as averaging them out. How would I do this and implement it with the code I currently have? The elements are supposed to be defined as I have it below. ...
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How can you profile a Python script?

Project Euler and other coding contests often have a maximum time to run or people boast of how fast their particular solution runs. With Python, sometimes the approaches are somewhat kludgey - i.e., adding timing code to __main__ . ...
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Can you set a border opacity in CSS?

Is there a straight forward CSS way to make the border of an element semi-transparent with something like this? 9 Answers ...
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue

I am getting the following error: 6 Answers 6 ...
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Is it possible to set a number to NaN or infinity?

Is it possible to set an element of an array to NaN in Python? 4 Answers 4 ...
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?

Is it guaranteed that False == 0 and True == 1 , in Python (assuming that they are not reassigned by the user)? For instance, is it in any way guaranteed that the following code will always produce the same results, whatever the version of Python (both existing and, likely, future ones)? ...
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Why modelVersion of pom.xml is necessary and always set to 4.0.0?

I have noticed that Maven's <modelVersion></modelVersion> of pom.xml is always set to 4.0.0. 4 Answers ...
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How do I efficiently iterate over each entry in a Java Map?

If I have an object implementing the Map interface in Java and I wish to iterate over every pair contained within it, what is the most efficient way of going through the map? ...