計算程式碼執行時間

 placeholderCopyuse Time::HiRes qw( time );

my $start = time();

#Code for which execution time is calculated
sleep(1.2);

my $end = time();

printf("Execution Time: %0.02f s\n", $end - $start);

這將以秒為單位列印程式碼的執行時間