大约有 43,000 项符合查询结果(耗时:0.0501秒) [XML]

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How to Vertical align elements in a div?

I have a div with two images and an h1 . All of them need to be vertically aligned within the div, next to each other. 29 ...
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How does python numpy.where() work?

I am playing with numpy and digging through documentation and I have come across some magic. Namely I am talking about numpy.where() : ...
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When are C++ macros beneficial? [closed]

The C preprocessor is justifiably feared and shunned by the C++ community. In-lined functions, consts and templates are usually a safer and superior alternative to a #define . ...
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What is difference between monolithic and micro kernel?

...e microkernels. Mach was initially a microkernel (not Mac OS X), but later converted into a hybrid kernel. Minix (before version 3) wasn't a pure microkernel because device drivers were compiled as part of the kernel. Monolithic kernels are usually faster than microkernels. The first microkernel Mac...
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How do you echo a 4-digit Unicode character in Bash?

... Quick one-liner to convert UTF-8 characters into their 3-byte format: var="$(echo -n '☠' | od -An -tx1)"; printf '\\x%s' ${var^^}; echo share | ...
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How to set Sqlite3 to be case insensitive when string comparing?

...e' when running this query. The db engine will need to full-scan all rows, converting all of the 'name' fields to upper case and running the comparison. – Mathew Waters Mar 15 '12 at 8:58 ...
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How do I check OS with a preprocessor directive?

...them, with links to where they're found: Windows _WIN32   Both 32 bit and 64 bit _WIN64   64 bit only Unix (Linux, *BSD, Mac OS X) See this related question on some of the pitfalls of using this check. unix __unix __unix__ Mac OS X __APPLE__ __MACH__ Both are defined; checking for eith...
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Select top 10 records for each category

...= 10 If your RankCriteria has ties then you may return more than 10 rows and Matt's solution may be better for you. share | improve this answer | follow | ...
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Difference between getContext() , getApplicationContext() , getBaseContext() and “this”

... between getContext() , getApplicationContext() , getBaseContext() , and " this "? 8 Answers ...
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Access Enum value using EL with JSTL

...ption 2, the compiler can not verify it, but at runtime the string will be converted into an enum using Enum.valueOf(Class<T> enumType, String name) which will trigger an ELException if the enum has no constant with that name. The expression will not just always be false. ...