大约有 42,000 项符合查询结果(耗时:0.0696秒) [XML]

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Can I use a :before or :after pseudo-element on an input field?

... use the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK. 19...
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Styling multi-line conditions in 'if' statements? [closed]

... cond3 == 'val3' and cond4 == 'val4'): do_something Also, don't forget the whitespace is more flexible than you might think: if ( cond1 == 'val1' and cond2 == 'val2' and cond3 == 'val3' and cond4 == 'val4' ): do_something if (cond1 == 'val1' and cond2 == 'val2'...
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Malloc vs new — different padding

I'm reviewing someone else's C++ code for our project that uses MPI for high-performance computing (10^5 - 10^6 cores). The code is intended to allow for communications between (potentially) different machines on different architectures. He's written a comment that says something along the lines of:...
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Objective-C parse hex string to integer

...resenting a number, in Objective-C. I am willing to use both an objective, or a C-based method, either is fine. 7 Answers ...
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Good or bad practice? Initializing objects in getter

I have a strange habit it seems... according to my co-worker at least. We've been working on a small project together. The way I wrote the classes is (simplified example): ...
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What is the difference between a map and a dictionary?

... Two terms for the same thing: "Map" is used by Java, C++ "Dictionary" is used by .Net, Python "Associative array" is used by PHP "Map" is the correct mathematical term, but it is avoided because it has a separate meaning in function...
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Twitter Bootstrap - how to center elements horizontally or vertically

is there any way to center html elements vertically or horizontally inside the main parents? 12 Answers ...
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How to get a Static property with Reflection

So this seems pretty basic but I can't get it to work. I have an Object, and I am using reflection to get to it's public properties. One of these properties is static and I'm having no luck getting to it. ...
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minimum double value in C/C++

Is there a standard and/or portable way to represent the smallest negative value (e.g. to use negative infinity) in a C(++) program? ...
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Big-O summary for Java Collections Framework implementations? [closed]

...O notation, it is probably not safe to assume that they will know what the order of the various operations on various collection implementations is. ...