大约有 6,000 项符合查询结果(耗时:0.0218秒) [XML]

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How can I round a number in JavaScript? .toFixed() returns a string?

...ating-point systems. For example, 0.1 is really 0.1000000000000000055511151231257827021181583404541015625, and 0.01 is really 0.01000000000000000020816681711721685132943093776702880859375. (Thanks to BigDecimal for proving my point. :-P) Therefore (absent a decimal floating point or rational numbe...
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How to change the background color of the options menu?

...s yet to provide a satisfactory, supported solution. There are a lot of crossed intentions and misunderstandings floating around posts on this topic, so please read this whole answer before responding. Below I include a more "refined" and well-commented version of the hack from other answers on th...
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Why cast unused return values to void?

...o object (for all well behaving classes that is! :)). Another example is: os <<"Hello World" << std::endl. Each of them returns the "os" object. – Richard Corden Mar 27 '09 at 18:07 ...
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Working copy XXX locked and cleanup failed in SVN

... 123 +1 to you for this workaround to fix not just the OP's problem (and mine), but also for giving the 5 steps that seem to fix any svn proble...
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How to COUNT rows within EntityFramework without loading contents?

... Craig StuntzCraig Stuntz 123k1212 gold badges244244 silver badges266266 bronze badges ...
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Get property value from string using reflection

...by index) inside a collection // like AggregatedCollection[123] // get collection name and element index int indexStart = propertyNamePart.IndexOf("[")+1; string collectionPropertyName = propertyNamePart.Substring(0, indexStart-1); ...
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Is bool a native C type?

...re all of its elements to be addressable (e.g. _Bool* ptr = &boolArray[123]). – Dai Apr 5 at 0:05 add a comment  |  ...
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How to install psycopg2 with “pip” on Python?

...s. Below are solutions for Linux, Mac users, since lots of them find this post through web searches. Option 1 Install the psycopg2-binary PyPI package instead, it has Python wheels for Linux and Mac OS. pip install psycopg2-binary Option 2 Install the prerequsisites for building the psycop...
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Copy array items into another array

... Tom Wadley 123k11 gold badge2121 silver badges2929 bronze badges answered Nov 11 '10 at 15:37 WiseGuyEhWiseGuyEh...
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How do I determine if my python shell is executing in 32bit or 64bit?

...tunately, its results are not always reliable, particularly in the case of OS X universal binaries. $ arch -x86_64 /usr/bin/python2.6 -c 'import sys,platform; print platform.architecture()[0], sys.maxsize > 2**32' 64bit True $ arch -i386 /usr/bin/python2.6 -c 'import sys,platform; print platform...