How to use lists and arrays in perl

This article will explain in detail how to use lists and arrays in perl. The editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Lists and arrays in perl

A list is a collection of scalars, and an array is a variable that stores a list.

Examples are as follows:

(1, 2, 3, 4) it's a list.

You can assign a value to an array @ array= (1, 2, 3, 4)

(5, 6, 7, 8) is a list.

You can also assign a value to the array @ array= (5, 6, 7, 8)

The above two @ array are the same array, but different lists refer to specific data, while the array is just a variable and can hold different lists.

I. list

A list is a sequence of values contained in parentheses, which can be any numeric value or empty, such as: (1,5.3, "hello", 2), empty list: ().

Note: a list with only one value (for example: (43.2)) is different from the value itself (that is, 43.2), but they can be converted or assigned to each other. List example:

(17, $var, "a string") (17, 26