はてなブックマーク

<script type="text/javascript"> $(function() { countDown(); }); function countDown() { var startDateTime = new Date(); var endDateTime = new Date("January 01,2014 00:00:00"); var left = endDateTime - startDateTime; var a_day = 24 * 60 * 60 * 1000; // 期限から現在までの『残時間の日の部分』 var d = Math.floor(left / a_day) // 期限から現在までの『残時間の時間の部分』 var h = Math.floor((left % a_day) / (60 * 60 * 1000)) // 残時間を秒で割って残分数を出す

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*filter # インプットチェーンの定義 :INPUT ACCEPT [0:0] # フォワードチェーンの定義 :FORWARD ACCEPT [0:0] # アウトプットチェーンの定義 :OUTPUT ACCEPT [0:0] # RH-Firewall-1-INPUT チェーンの定義 :RH-Firewall-1-INPUT - [0:0] # INPUTチェーンに来たものはすべて無条件にRH-Firewall-1-INPUTチェーンへ転送する -A INPUT -j RH-Firewall-1-INPUT # FORWARDチェーンに来たものはすべて無条件にRH-Firewall-1-INPUTチェーンへ転送する -A FORWARD -j RH-Firewall-1-INPUT # ループバックは通す。自ホストからの通信は問答無用で全部通す -A RH-Firewall-1-I

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Perlではメソッドのオーバーロードが出来ない様ですね。まぁこんなだけ変数の型にゆるゆるだったら、出来るわけもないのかと思ったりもしますが、、、 代替策としてこんなのがあるみたい。 私としては、まとまってていいなーって感じです。 package Triangle; use Carp qw(croak); my $subSpace = sub { my($a,$b,$c) = @_; my $s = ($a + $b + $c) / 2; my $inRoot = $s * ($s - $a) * ($s - $b) * ($s - $c); if ($inRoot >= 0){ return sqrt($inRoot); }else{ croak "you cannot construct the triangle with the sides $a, $b, $c !"; } }; su

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