print " Hello World "; ##

##

print "Hello World";

##

##

print 'Hello World';

##

##

print '

Hello World


';

##

##

my $string = 'Hello World';
print '' . $string . '' . "\n";

##

##

my $string = 'Hello World';
print "$string\n";

##

##

print qq($string\n);

##

##

print qq($string\n);
print qq{$string\n};
print qq#$string\n#;
print qq!$string\n!;

# have to escape the delimiter:
print qq/

`$string<\/h1>\n/; #### my $string = 'Hello World'; print < $string HTML`