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
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
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
When using echo to output a file, if the file has double quotes, you need to use [code lang= "Perl"]echo ' Yourtext '; [/code] (enclosed in single quotation marks) questions about Perl here Document:
[Code lang= "Perl"] print >> END; YOUR TEXT here
14th Chapter PERL5 Packages and modulesby FlamephoenixFirst, Require function1. Require functions and sub-Libraries2. Specify the Perl version with requireSecond, the package1, the definition of the package2, switch between the package3. Main
The here documentation mechanism for Perl is derived from the here document mechanism in the UNIX shell.As in the shell, the here document in Perl is also a row-oriented reference form, requiring a After If the terminating string is not enclosed in
Install with CPAN
1. My system is Debian. By default, only Perl-base is installed, that is, Perl can be used, but CPAN is not installed. Therefore, Perl is installed in the system.
Aptitude install Perl
Install Perl-modules in addition. You can
Perl Overview
Perl was first developed by Larry Wall and is a "glue" language, for example, converting the output of the previous program into the input of the next program. The first version of Perl was released in December 18, 1987 and has been
ByGeorgesTarbouriechWhataboutthisnicepair? MySQL is a relational database system (RDBMS). its homepage is www.mysql.com. It is released by GNUGPL for free. please read the copyright notice. It can work on many platforms, both as a server and a
Differences from Perl PCRE function PCRE Patterns PHP manual
Schema Syntax
(No version information available, might only being in SVN)
Schema syntax-syntax explanation for Perl compatible regular expressions
The PCRE library is a set of functions
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