大约有 47,000 项符合查询结果(耗时:0.0750秒) [XML]

https://stackoverflow.com/ques... 

Bash empty array expansion with `set -u`

...]+"${arr[@]}"} (column +"). Of note, several other expansions fail in Bash 4.2, including (unfortunately) the shorter ${arr[@]:0} idiom, which doesn't just produce an incorrect result but actually fails. If you need to support versions prior to 4.4, and in particular 4.2, this is the only working id...
https://stackoverflow.com/ques... 

How is pattern matching in Scala implemented at the bytecode level?

... you can do with patterns like or patterns and combinations like "case Foo(45, x)", but generally those are just logical extensions of what I just described. Patterns can also have guards, which are additional constraints on the predicates. There are also cases where the compiler can optimize pat...
https://stackoverflow.com/ques... 

Two statements next to curly brace in an equation

... Tombart 24.4k1212 gold badges104104 silver badges116116 bronze badges answered Oct 26 '10 at 19:58 LachezarLac...
https://stackoverflow.com/ques... 

MySQL get the date n days ago as a timestamp

...5:09 mysql> SELECT UNIX_TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day)); 1244433347 share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

How to add lines to end of file on Linux

...97079user897079 2,55511 gold badge1212 silver badges44 bronze badges 3 ...
https://stackoverflow.com/ques... 

How to create default value for function argument in Clojure

... Brian CarperBrian Carper 64.9k2525 gold badges154154 silver badges164164 bronze badges ...
https://stackoverflow.com/ques... 

How to configure slf4j-simple

api 1.7 and slf4j-simple as implementation. I just can't find how to configure the logging level with this combination. 4 ...
https://stackoverflow.com/ques... 

How do I get the localhost name in PowerShell?

... StrelokStrelok 44.2k77 gold badges8888 silver badges111111 bronze badges ...
https://stackoverflow.com/ques... 

matplotlib colorbar for scatter

... 194 From the matplotlib docs on scatter 1: cmap is only used if c is an array of floats So col...
https://stackoverflow.com/ques... 

Python - Passing a function into another function

... answered Aug 28 '09 at 21:04 John MillikinJohn Millikin 178k3636 gold badges199199 silver badges215215 bronze badges ...