改良

$q=$ENV{QUERY_STRING}; if($q){@p=split /[&;]/,$q; foreach(@p){($a,$b)=split
"="; $b=~tr/+/ /; $b=~s/%([A-Za-z0-9]{2})/pack("C", hex($1))/eg; $i{$a}=$b;}
open W, ">> b.log"; print W "$i{n}：$i{m}\n"; close W;} print "Content-type:
text/html\n\n<html>\n<title>BBS</title>\n\n"; open R, "b.log"; while(<R>)
{chomp; print "$_<br>\n";} close R; print qq{<hr>\n<form>Name<input type="text"
name="n"> <input type="text" name="m" size="64"> <input type="submit"> [<a
href="b.cgi">Reload</a>] [<a href="../../">Back</a>]</form>\n<hr>\n</html>\n};