大约有 40,700 项符合查询结果(耗时:0.0374秒) [XML]

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'id' is a bad variable name in Python

Why is it bad to name a variable id in Python? 9 Answers 9 ...
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What is the relative performance difference of if/else versus switch statement in Java?

...tion's performances, I am wondering which of "if/else" or switch statement is better regarding performance? 8 Answers ...
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Getting an element from a Set

... There would be no point of getting the element if it is equal. A Map is better suited for this usecase. If you still want to find the element you have no other option but to use the iterator: public static void main(String[] args) { Set<Foo> set = new HashSet<...
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When should std::move be used on a function return value? [duplicate]

In this case 6 Answers 6 ...
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Is Tomcat running?

Interested to know how people usually check to see if Tomcat is running on a Unix environment. 17 Answers ...
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Optimistic vs. Pessimistic locking

I understand the differences between optimistic and pessimistic locking. Now could someone explain to me when I would use either one in general? ...
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Is there a difference between copy initialization and direct initialization?

Suppose I have this function: 9 Answers 9 ...
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What is stability in sorting algorithms and why is it important?

I'm very curious, why stability is or is not important in sorting algorithms? 10 Answers ...
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Returning unique_ptr from functions

... is there some other clause in the language specification that this exploits? Yes, see 12.8 §34 and §35: When certain criteria are met, an implementation is allowed to omit the copy/move construction of a class object ...
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return, return None, and no return at all?

... On the actual behavior, there is no difference. They all return None and that's it. However, there is a time and place for all of these. The following instructions are basically how the different methods should be used (or at least how I was taught they ...