Multi-digit example code for Perl arrays _perl

The normal subscript operation in the Perl array must be familiar to everyone, not to be explained here.
What this article is trying to say is that the majority of the subscript in the Perl array can be used to greatly facilitate the operation of the array.
Note: These numbers are from 0 to $ #array的.

Child array

Copy Code code as follows:

@array = (1, 2, 3, 4, 5);
@subarray = @array [0,1]; # @subarray = (1, 2)
@subarray2 = @array [1..3]; # @subarray2 = (2,3,4)
@array [0,1] = ("string", 46); # @array = ("string", 46,3,4,5) now
@array [0..3] = (11, 22, 33, 44); # @array = (11,22,33,44,5) now
@array [1,2,3] = @array [3,2,4]; # @array = (11,44,33,5,5) now
@array [0..2] = @array [3,4]; # @array = (5,5, "", 5,5) now

You can exchange elements in the form of a sub array:

Copy Code code as follows:

@array [1,2] = @array [2,1];