大约有 35,477 项符合查询结果(耗时:0.0430秒) [XML]

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Why is an int in OCaml only 31 bits?

...pointer dererefences plus one object construction. And you take up almost 20 Byte. However, the trick is that with so-called immutable value types like integers, you usually don't need all the metadata in the object header: you can just leave all that stuff out, and simply synthesize it (which is V...
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Should I use the Reply-To header when sending emails as a service to others?

... answered Jan 18 '11 at 20:01 dkarpdkarp 13.4k55 gold badges5353 silver badges6262 bronze badges ...
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Create Directory if it doesn't exist with Ruby

... answered Oct 9 '13 at 19:08 zrl3dxzrl3dx 7,08833 gold badges2222 silver badges3333 bronze badges ...
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Inherit from a generic base class, apply a constraint, and implement an interface in C#

... answered Jan 5 '10 at 16:30 Adam RobinsonAdam Robinson 166k3131 gold badges264264 silver badges327327 bronze badges ...
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Convert hex string to int in Python

... 1130 Without the 0x prefix, you need to specify the base explicitly, otherwise there's no way to tell...
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“icon-bar” in twitter bootstrap navigation bar

... 130 icon-bar is used for responsive layouts to create a button that looks like ≡ on narrow browser...
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Is it safe to ignore the possibility of SHA collisions in practice?

...han 2n/2). For instance, with SHA-256 (n=256) and one billion messages (p=109) then the probability is about 4.3*10-60. A mass-murderer space rock happens about once every 30 million years on average. This leads to a probability of such an event occurring in the next second to about 10-15. That's 4...
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What is the difference between object keys with quotes and without quotes?

... answered Dec 3 '10 at 18:10 bdukesbdukes 131k1919 gold badges136136 silver badges170170 bronze badges ...
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getSupportActionBar from inside of Fragment ActionBarCompat

... 290 After Fragment.onActivityCreated(...) you'll have a valid activity accessible through getActivit...
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Replacing Pandas or Numpy Nan with a None to use with MysqlDB

... 203 @bogatron has it right, you can use where, it's worth noting that you can do this natively in p...