What are the basic operators of Perl

This article mainly shows you "What are the basic Perl operators?" The content is simple and easy to understand, and the organization is clear. I hope it can help you solve your doubts. Let Xiaobian lead you to study and learn "What are the basic Perl operators?" This article.

numeric operator

+、-、*、/、%、**、++、--、+=、-=、*=、/=

..、.、x、，

@a = (1 .. 4); # @a = (1,2,3,4), note: cannot be from large to small

$s = "Test". 1; # $s = "Test1"

$s .= 2; #$s = "Test12"

@a = (1) x 4; # @a = (1,1,1,1)

$s = "A" x 4; # $s = "AAAA"

my ($a,$b) = (1,2); # my $a = 1; my $b =2;

$a=$b+1,$b=$a+1; # $a=$b+1;$b=$a+1;

($a,$b) = (1,2);

($a,$b) = ($b+1,$a+1); # $a=3, $b=2

#is not equal to: $a=$b+1; $b=$a+1;

logical operators

Logical OR: $a|| $b or $a or $b #either a or b is true

logical AND: $a && $b or $a and $b #true only if both a and b are true

Logic is NOT: ! $a or not $a #a is true when false

Logical XOR: $a xor $b # a, b is true when one is true and one is false

Conditional operators (ternary operators):

Conditions? Value1: Value2. When the condition is true, the value is 1, and when it is false, the value is 2, such as:

$result = ($var == 0) ? 14 : 7;

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