join function in perl

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What is Perl? Programming language Perl detailed introduction to _perl

Perl's original designer was Larry Wall (Larry Wall), which was published on December 18, 1987. Perl borrows the features of C, sed, awk, shell scripting, and many other programming languages. Larry Wall Published version 1.0 of the Perl scripting

Basic perl syntax

I. Data Types(Data type): Perl has four data types: Scalar (variable), Scalar Array (Array), Hash Array (Hash), and References (pointer ), it seems to be rare, but it is more than enough to use it. Especially when writing Perl programs, you do not

Perl Basic Syntax Introduction _ Basics Tutorial

one. DataType (data type ):Perl's data types are roughly four: Scalar (variables), Scalar Array (array), hash array (hash), References (pointer), but they seem to be small but more than sufficient. In particular, you can write a Perl program without

Some similarities and differences between Perl and Python _ Other

About the origins and characteristics of Perl and Python Perl is the abbreviation of practical extraction and report Language, created by Larry Wall in 1987, originally designed to facilitate the processing of reports on UNIX, and has become a fully

Lists and arrays in Perl learning notes _perl

One, List A list is a sequence of values enclosed in parentheses that can be any value or NULL, such as: (1, 5.3, "Hello", 2), empty list: ().Note: A list containing only one numeric value (for example: (43.2)) is different from the value itself

Use of Perl (), require (), do (),%inc and @INC

transferred from: http://perl.apache.org/docs/general/perl_reference/perl_reference.html Use (), require (), do (),%inc and @INC explained The @INC array @INC is a special Perl variable which is the equivalent of the shell ' s PATH variable.

Perl use (), require (), Do (), % INC and @ INC

From: http://perl.apache.org/docs/general/perl_reference/perl_reference.html Use (), require (), Do (), % INC and @ INC explained   The @ INC Array @ INCIs a special Perl variable which is the equivalent of the shell'sPathVariable.

Perl function Set Summary _perl

Process processing functions 1. Process Start functionFunction name EvalCall Syntax eval (string)The commentary considers a string as a Perl statement execution.When executed correctly, the system variable $@ is an empty string, and if there is an

Chapter 2 scalar data in Perl

Preface: Definition:The concept of singular and plural: Scalar is a single thing. perl uses scalar (the simplest data type in perl) to call a single thing. For most scalar values, it is either a number or a string composed of characters (perl does

24 hours of Perl programming course questions

24 hours of Perl programming course questionsI. multiple choice questions1. Which of the following strings is incorrectly defined ()(1) 'Thank you'(2 )""(3) "A" friend "of yours"(4) "A/" friend/"of yours"2. Which of the following statements is

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