$ time perl t2.pl
real 0m3.778s
user 0m0.015s
sys 0m0.015s
$ time perl t.pl
real 0m1.271s
user 0m0.031s
sys 0m0.015s
my $html = "<table><tr><td>aa</td><td>bb< /td></tr></table>标记1<table><tr><td>cc</td><td>dd< /td></tr>" . 'a' x 300000 . "</table>标记2<table><tr><td>ee</td><td>ff</td></tr></table>";
appleii@r61e /cygdrive/d
$ time perl t2.pl
real 1m2.401s
user 0m0.015s
sys 0m0.015s
appleii@r61e /cygdrive/d
$ time perl t.pl
real 0m51.128s
user 0m0.015s
sys 0m0.015s
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