大约有 47,000 项符合查询结果(耗时:0.0257秒) [XML]

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iOS 7 - Status bar overlaps the view

...storyboard, I moved my views 20 pixels down to look right on iOS 7 and in order to make it iOS 6 compatible, I changed Delta y to -20. Since my storyboard is not using auto-layout, in order to resize the height of views properly on iOS 6 I had to set Delta height as well as Delta Y. ...
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MySQL indexes - what are the best practices?

...tant to understand what's going on. Broadly speaking, an index imposes an ordering on the rows of a table. For simplicity's sake, imagine a table is just a big CSV file. Whenever a row is inserted, it's inserted at the end. So the "natural" ordering of the table is just the order in which rows...
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What is the difference between procedural programming and functional programming? [closed]

...rely functional program always yields the same value for an input, and the order of evaluation is not well-defined; which means that uncertain values like user input or random values are hard to model in purely functional languages. 1 As everything else in this answer, that’s a generalisation. ...
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Difference between FetchType LAZY and EAGER in Java Persistence API?

... @ADTC In order for lazy loading to work, the JDBC session must still be open when the target entities want to be loaded into the memory by invoking the getter method (e.g. getStudents()), but sometimes this is not possible, because by...
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What XML parser should I use in C++? [closed]

... requires you to do a lot of explicit memory allocation of string names in order to build its DOM. It does provide a kind of string buffer, but that still requires a lot of explicit work on your end. It's certainly functional, but it's a pain to use. It uses the MIT licence. It is a header-only libr...
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Understanding ibeacon distancing

...info form accelerometer to detect whether user is moving (and how fast) in order to reset the previous distribution distance values because they have certainly changed. share | improve this answer ...
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static const vs #define

...#define simply replaces the text. Because doing this can seriously mess up order of operations, I would recommend using a constant variable instead. share | improve this answer | ...
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Should I call Close() or Dispose() for stream objects?

...an call Close() & Dispose() on streams as often as you like and in any order. It won't change the behaviour in any way. So it comes down to whether or not it is more readable to use Dispose(), Close() and/or using ( ... ) { ... }. My personal preference is that using ( ... ) { ... } should alw...
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How to enable MySQL Query Log?

... It's ok to save those settings in conf file in order to be applied every time that MySQL is started, but you don't need to restart MySQL to apply this configuration. You can set it using 'SET global' like others said. – Angel Apr 8 '...
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Implications of foldr vs. foldl (or foldl')

... To avoid confusion, note that the parentheses do not show the actual order of evaluation. Since Haskell is lazy the outermost expressions will be evaluated first. – Lii Oct 29 '13 at 16:29 ...