大约有 30,000 项符合查询结果(耗时:0.0425秒) [XML]

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Recursion or Iteration?

... string is a palindrome. I have seen many programmers using recursion as a means to show off when a simple iteration algorithm can fit the bill. Does the compiler play a vital role in deciding what to use? ...
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Update R using RStudio

...ackages from the old R installation into the new version; on Mac OSX, this means moving all folders from here: /Library/Frameworks/R.framework/Versions/2.15/Resources/library to here: /Library/Frameworks/R.framework/Versions/3.0/Resources/library [where you'll replace "2.15" and "3.0" with wha...
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Why is “final” not allowed in Java 8 interface methods?

...to implement it.) Another reason to disallow them is that they wouldn't mean what you think they mean. A default implementation is only considered if the class (or its superclasses) don't provide a declaration (concrete or abstract) of the method. If a default method were final, but a superclas...
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PostgreSQL: insert from another table

... Just supply literal values in the SELECT: INSERT INTO TABLE1 (id, col_1, col_2, col_3) SELECT id, 'data1', 'data2', 'data3' FROM TABLE2 WHERE col_a = 'something'; A select list can contain any value expression: But the expressions in the select list do not have to reference any co...
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How to dynamically change a web page's title?

... So it means this answer is quite obsolete. StackOverflow should now add "Obsolete" feature for answers :D – Allen Linatoc Mar 14 '16 at 7:42 ...
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Hiding textarea resize handle in Safari

... You can override the resize behaviour with CSS: textarea { resize: none; } or just simply <textarea style="resize: none;">TEXT TEXT TEXT</textarea> Valid properties are: both, horizontal, vertical, none ...
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Why are Python lambdas useful? [closed]

...ming from non-programming backgrounds (ie: exact sciences) which makes the meaning of lambda very simple to understand. Thanks! – Gabriel Jan 2 '16 at 15:24 10 ...
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Convert XML String to Object

...rk >= 4.5 as project target and 'Windows Communication Foundation' individual component installed Copy content of your XML file to clipboard Add to your solution new, empty class file (Shift+Alt+C) Open that file and in menu click Edit > Paste special > Paste XML As Classes And that's ...
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Merge PDF files

... @SimeonBorko Drop the +, it means “read and write” and neither file is both read and written. I've added Windows support output support based on stackoverflow.com/questions/2374427/…. – Gilles 'SO- stop being evil' ...
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Separating class code into a header and cpp file

... So this means that all files that include your header file will "see" the private members. If for example you want to publish a lib and its header, you have to show the private members of the class? – Gauthier ...