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
Introduction to Perl Syntax Perl operators
1.Perl operator
1.1 Arithmetic operators
Perl is very different in variables and data paradigms and C. However, its operator and C are almost identical, except for the example conversion operator type of
Introduction to Perl Operators
1. Perl Operators
1.1 Arithmetic Operators
Perl is similar to C in both variables and data examples, but its operators and C are almost the same, except for C's example conversion operator type, pointer Reference
Chomp and chop are all characters used to remove the tail of a string variable, but they have their own differences.
The Chomp function works on a variable, and this variable contains a string. If there is a newline character at the end of the
Regular Expressions (Regular expression, abbreviated as Regexp,regex or REGXP), also known as regular expressions, regular expressions, or regular or normalized representations or formal representations, refer to a A single string that describes or
Regular Expressions (Regular Expression, abbreviated as Regexp,regex or REGXP), also known as regular expressions, regular representations or regular expressions, or formal representations or regular representations, refer to a To describe or match
Regular ExpressionsEdit regular expressions, also known as formal representations, general representations (English: Regular Expression, often abbreviated as regex, RegExp, or re) in code, a concept of computer science. A regular expression uses a
Regular Expressions (Regular expression, abbreviated as Regexp,regex or REGXP), also known as regular expressions, regular expressions, or regular or normalized representations or formal representations, refer to a A single string that describes or
To judge the contents of a string, returning a Boolean type#-*-Coding:utf-8-*-__author__ = "MuT6 sch01ar" print (' Python '. EndsWith (' on ')) #判断字符串是否以on结尾, returns the Boolean type print (' Python '). StartsWith (' py ')) #判断字符串是否以py开头, returns
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