perl two dimensional array

Introduction to Perl syntax 1.PERL variables 1.1.Perl Variable Classification 1.2.Perl variables 1.2.1 Scalar variable 1.2.2 Array Variables 1.2.3 Scalar and array variables 1.2.4 Associative arrays 2

This article focuses on the concept of Perl variables in the Perl syntax, where Perl variables are divided into scalar variables, array variables, and relational array variable 3 classes. Perl's variables are sensitive to size, such as: An,an,an is

Chapter 2: References References are declared as scalar types (named variables starting with $), and reference is obtained using the \ operator. Modifying the referenced variable is equivalent to modifying the reference pointing to the

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

The PHP array has one-dimensional arrays and no arrays, and here we analyze the techniques of PHP's two-dimensional array ordering. PHP, a nested abbreviated name, is an abbreviation for the English Super Text preprocessing language (Php:hypertext

GrammarThere are only two ways to create ' references ', and they are two. Creating references Create Rule 1If you add a '/' number in front of a variable, you get a ' reference ' to the variable. $aref =/@array; # $aref Keep a ' reference ' to

Syntax There are only two ways to create a 'quot. Create reference Create Rule 1If you add a '/' sign before a variable, you will get the 'quota' of the variable '. $ Aref = // @ array; # $ Aref saves the 'quot' pointing to @ Array'$ Href =/% hash;

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

"Reprint" Source: http://www.cnblogs.com/visayafan/ 1 Arrays and references 2 Differences of the statements 3 Differences in Access 4 Adding row elements 5 Adding column elements 6 Accessing and printing 6.1

Help (Dit.keys)---to see a description of the keys function in the dictionary typeAbout PrintPython---String can be followed without adding \ nthe line wrappingThe per---does not wrap automatically, and must be added \ nAbout executing SQL