大约有 49,000 项符合查询结果(耗时:0.0691秒) [XML]

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How to split one string into multiple variables in bash shell? [duplicate]

I've been looking for a solution and found similar questions, only they were attempting to split sentences with spaces between them, and the answers do not work for my situation. ...
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Is it safe to get values from a java.util.HashMap from multiple threads (no modification)?

There is a case where a map will be constructed, and once it is initialized, it will never be modified again. It will however, be accessed (via get(key) only) from multiple threads. Is it safe to use a java.util.HashMap in this way? ...
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How to elegantly check if a number is within a range?

How can I do this elegantly with C# and .NET 3.5/4? 27 Answers 27 ...
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Python csv string to array

Anyone know of a simple library or function to parse a csv encoded string and turn it into an array or dictionary? 10 Answe...
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Declaring an unsigned int in Java

...on is that most operations (such as addition, subtraction, multiplication, and left shift) are identical on a binary level for signed and unsigned integers. A few operations (division, right shift, comparison, and casting), however, are different. As of Java SE 8, new methods in the Integer class al...
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When is JavaScript synchronous?

...ns). Is there a good reference anywhere about when it will be synchronous and when it will be asynchronous? Does jQuery affect this at all? ...
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Should a return statement be inside or outside a lock?

... that in some place in my code I have the return statement inside the lock and sometime outside. Which one is the best? 9 A...
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What is the most efficient way to loop through dataframes with pandas? [duplicate]

... The newest versions of pandas now include a built-in function for iterating over rows. for index, row in df.iterrows(): # do some logic here Or, if you want it faster use itertuples() But, unutbu's suggestion to use numpy functions to avoi...
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SHA1 vs md5 vs SHA256: which to use for a PHP login?

I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt? ...
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E731 do not assign a lambda expression, use a def

...tead of the generic '<lambda>'. This is more useful for tracebacks and string representations in general. The use of the assignment statement eliminates the sole benefit a lambda expression can offer over an explicit def statement (i.e. that it can be embedded inside a larger expressio...