大约有 47,000 项符合查询结果(耗时:0.0535秒) [XML]

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Learning to write a compiler [closed]

... (scanning and parsing, semantic analysis, activation records, instruction selection, RISC and x86 native code generation) and various "advanced" topics (compiling OO and functional languages, polymorphism, garbage collection, optimization and single static assignment form) into relatively little sp...
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How do you get the list of targets in a makefile?

...al with false positives from other output sections. if ($$1 !~ "^[#.]") Selectively ignores blocks: # ... ignores non-targets, whose blocks start with # Not a target: . ... ignores special targets All other blocks should each start with a line containing only the name of an explicitly defined...
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When/Why to use Cascading in SQL Server?

...alking about to restrict all data accesses to SPs, or at the least all but Select. See my answer under stackoverflow.com/questions/1171769/… – Cruachan May 29 '10 at 9:32 ...
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Rails: Check output of path helper from console

...pree::Product.first), method: :get) output Spree::Product Load (0.4ms) SELECT "spree_products".* FROM "spree_products" WHERE "spree_products"."deleted_at" IS NULL ORDER BY "spree_products"."id" ASC LIMIT 1 => "<a data-method=\"get\" href=\"/products/this-is-the-title\">test</a>...
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is of a type that is invalid for use as a key column in an index

...ey nvarchar(max) ) RETURNS bit AS BEGIN declare @res bit if exists(select * from key_value where [key] = @key) set @res = 0 else set @res = 1 return @res END But note that a native index is more performant than a check constraint so unless you really can't specify ...
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Should you declare methods using overloads or optional parameters in C# 4.0?

...call site. By contrast, overloads provide a means by which a compiler can select one of a number of methods, some of which might supply default values themselves. Note that if one tries to call a method that specifies optional parameters from code written in a language which doesn't support them, ...
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Command line: piping find results to rm

... find /usr/www/bar/htdocs -mtime +15 -exec rm {} \; Will select files in /usr/www/bar/htdocs older than 15 days and remove them. share | improve this answer | ...
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How to clear gradle cache?

...cleanBuildCache Android Studio / IntelliJ gradle tab (default on right) select and run the task or add it via the configuration window **gradle/gradlew are system specific files containing scripts - please see system info how to execute the script linux - https://www.cyberciti.biz/faq/how...
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How to change the color of an svg element?

...create a font out of the SVG using a service like https://icomoon.io/app/#/select or such. upload your SVG, click "generate font", include font files and css into your side and just use and style it like any other text. I always use it like this because it makes styling much easier. EDIT: As mentio...
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How can I extract a good quality JPEG image from a video file with ffmpeg?

...be console output can tell you if your input is MJPEG: $ ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=nw=1 input.avi codec_name=mjpeg Then you can extract the frames using the mjpeg2jpeg bitstream filter: $ ffmpeg -i input.avi -codec:v copy -bsf:v mjpeg2jpeg outp...