use strict;
my $str = '1 2017-04-11 Zjmainstay
2 2017-04-12 Nobody
3 2017-04-13 Somebody';
my $regex = qr/在此输入你的正则表达式/p;
my $subst = 'INSERT INTO table_log(`id`, `created_at`, `author`) values(\'$1\', \'$2\', \'$3\');';
my $result = $str =~ s/$regex/$subst/rg;
print "The result of the substitution is' $result\n";
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Perl, please visit: http://perldoc.perl.org/perlre.html