大约有 44,000 项符合查询结果(耗时:0.0776秒) [XML]

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The new syntax “= default” in C++11

I don't understand why would I ever do this: 5 Answers 5 ...
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How to process each line received as a result of grep command

... have a number of lines retrieved from a file after running the grep command as follows: 7 Answers ...
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Does the C++ standard mandate poor performance for iostreams, or am I just dealing with a poor imple

Every time I mention slow performance of C++ standard library iostreams, I get met with a wave of disbelief. Yet I have profiler results showing large amounts of time spent in iostream library code (full compiler optimizations), and switching from iostreams to OS-specific I/O APIs and custom buffer...
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Convert command line arguments into an array in Bash

How do I convert command-line arguments into a bash script array? 7 Answers 7 ...
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How do you test to see if a double is equal to NaN?

I have a double in Java and I want to check if it is NaN . What is the best way to do this? 7 Answers ...
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val() doesn't trigger change() in jQuery [duplicate]

... onchange only fires when the user types into the input and then the input loses focus. You can manually call the onchange event using after setting the value: $("#mytext").change(); // someObject.onchange(); in standard JS Alternatively, you can trigger the event using: $("#...
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How do I iterate through the files in a directory in Java?

... in a directory, including files in all the sub-directories. What is the standard way to accomplish directory iteration with Java? ...
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HTML5 best practices; section/header/aside/article elements

There is enough information about HTML5 on the web (and also on stackoverflow), but now I'm curious about the "best practices". Tags like section/headers/article are new, and everyone has different opinions about when/where you should use these tags. So what do you guys think of the following layout...
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getting the last item in a javascript object

... No. Order is not guaranteed in JSON and most other key-value data structures, so therefore the last item could sometimes be carrot and at other times be banana and so on. If you need to rely on ordering, your best bet is to go with arrays. The power of key-val...
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Can table columns with a Foreign Key be NULL?

... you can clearly indicate that this row is not to be used as a normal row, and can use the row as a way of providing a sort of dynamic default value for other rows. – Ouroborus Feb 21 '17 at 17:57 ...