Ruby 身份证验证
module CardVali ARRINT = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2] ARRCH = ['1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2'] class << self def change18(card) if card.size == 15 chars = card.chars.to_a cardtemp = 0 chars.insert(6,'1','9') 17.times do |i| cardtemp += (chars[i].to_i * ARRINT[i]) end (chars << ARRCH[cardtemp % 11]) else raise card + '并非15位身份证号!' end end def check(card) case card.size when 15 : chars = change18(card) when 18 : chars = card.chars.to_a else raise card + '无法识别身份证号!' end cardtemp = 0 17.times do |i| cardtemp += chars[i].to_i * ARRINT[i] end ARRCH[cardtemp % 11].eql? chars.last end endend?
