--- exit([status])

    Rubyץμ¹Ԥλޤstatus Ȥ
    Ϳ줿硢ͤ Ruby ޥɤνλơȤ
    ޤǥեȤνλơ 0 Ǥ

    exit 㳰 SystemExit ȯ
    뤳Ȥˤäƥץμ¹ԤλޤΤǡ
    ɬפ˱ rescue [湽¤/begin] ª뤳ȤǤޤ

