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  1. operators - What does =~ do in Perl? - Stack Overflow

    man perlop "perlop - Perl operators and precedence" (at least in UNIX-like) answers this question: "Binary "=~" binds a scalar expression to a pattern match." – U. Windl Commented Apr 1, …

  2. variables - What is the meaning of @_ in Perl? - Stack Overflow

    Dec 30, 2010 · perldoc perlvar is the first place to check for any special-named Perl variable info. Quoting: @_: Within a subroutine the array @_ contains the parameters passed to that …

  3. What does the -> arrow do in Perl? - Stack Overflow

    Perl arrow operator has one other use: Class−>method invokes subroutine method in package Class. though it's completely different than your code sample. Only including it for …

  4. 如何从零开始学习 Perl? - 知乎

    Learning Perl (豆瓣) 开始。快速浏览加实践下书上代码,两天就可以读个大概。 不过小骆驼书只覆盖了Perl Programming最基础的一部分知识,当你需要用Perl做面对对象或者大型程序编程 …

  5. Perl 是一门冷门的语言吗,关注者和问题数这么少? - 知乎

    怎么说呢?在处理文本领域,Perl不是冷门,相反,它是最有竞争力的一门编程语言之一。正则表达式和Perl融合得很好。你不妨试试,给自己一个机会。 知乎上关注度不高和这门语言流行度 …

  6. 客观地说,Perl 是不是快死了? - 知乎

    近些年来感觉到所谓流行趋势的没落,个人觉得还有一部分原因是由于perl 6 和perl 5的割裂。 perl 6的雄心太庞大,编译器非要自己实现自己,进展异常缓慢, 说到底没有大公司的支持,perl …

  7. What's the use of <> in Perl? - Stack Overflow

    Mar 13, 2015 · So, if the shell is handing you a bunch of file names, and you'd like to go through each one's data in turn, perl's <> operator gives you a nice way of doing that...it puts the next …

  8. operators - What is the difference between "||" and "or" in Perl ...

    From Perl documentation:. OR List operators. On the right side of a list operator, it has very low precedence, such that it controls all comma-separated expressions found there.

  9. 敢问 Perl 比 Python 好在哪里? - 知乎

    Jul 3, 2015 · 从我对Python的少量了解来看,Perl大概有这么几个优势: 性能稍微好一点,不过十分不显著。而且Perl的Moose对象系统会造成10%左右的性能损失。如果你用Perl构建比较复 …

  10. What does exactly perl -pi -e do? - Stack Overflow

    Jan 25, 2015 · You can inspect the code actually used by Perl with the core module B::Deparse. This compiler backend module is activated with the option -MO=Deparse.

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